1
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Ogo S, Yatabe T, Miyazawa K, Hashimoto Y, Takahashi C, Nakai H, Shiota Y. Cyclopropanation Using Electrons Derived from Hydrogen: Reaction of Alkenes and Hydrogen without Hydrogenation. JACS Au 2024; 4:1615-1622. [PMID: 38665645 PMCID: PMC11040560 DOI: 10.1021/jacsau.4c00098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 03/05/2024] [Accepted: 03/11/2024] [Indexed: 04/28/2024]
Abstract
Have you ever imagined reactions of alkenes with hydrogen that result in anything other than hydrogenation or hydrogenative C-C coupling? We have long sought to develop not only hydrogenation catalysts that activate H2 as hydride ions but also electron transfer catalysts that activate H2 as a direct electron donor. Here, we report the reductive cyclopropanation of alkenes using an iridium electron storage catalyst with H2 as the electron source without releasing metal waste from the reductant. We discuss the catalytic mechanism with selectivity to give the trans-isomer. These findings are based on the isolation of three complexes and density functional theory calculations.
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Affiliation(s)
- Seiji Ogo
- Department
of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
- International
Institute for Carbon-Neutral Energy Research (WPI Academy I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
- Center
for Small Molecule Energy, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Takeshi Yatabe
- Department
of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
- International
Institute for Carbon-Neutral Energy Research (WPI Academy I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
- Center
for Small Molecule Energy, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Keishi Miyazawa
- Department
of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
- International
Institute for Carbon-Neutral Energy Research (WPI Academy I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Yunosuke Hashimoto
- Department
of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
- International
Institute for Carbon-Neutral Energy Research (WPI Academy I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Chiaki Takahashi
- Department
of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
- International
Institute for Carbon-Neutral Energy Research (WPI Academy I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Hidetaka Nakai
- Department
of Energy and Materials, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Osaka 577-8502, Japan
| | - Yoshihito Shiota
- Institute
for Materials Chemistry and Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
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2
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Shimauchi D, Yatabe T, Ikesue Y, Kajiwara Y, Koide T, Ando T, Yoon KS, Nakai H, Ogo S. Storing electrons from H 2 for transfer to CO 2, all at room temperature. Chem Commun (Camb) 2023. [PMID: 38018815 DOI: 10.1039/d3cc05285k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2023]
Abstract
We present an Ir complex that extracts electrons from H2 at room temperature and stores them as a H2-derived energy carrier (H2EC) at room temperature. Furthermore, we demonstrate that this complex reduces CO2 to a metal-CO22- species at room temperature, and present the first electrospray ionisation mass spectrum for this compound.
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Affiliation(s)
- Daiki Shimauchi
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan.
- International Institute for Carbon-Neutral Energy Research (WPI Academy I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Takeshi Yatabe
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan.
- International Institute for Carbon-Neutral Energy Research (WPI Academy I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
- Center for Small Molecule Energy, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Yuka Ikesue
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan.
- International Institute for Carbon-Neutral Energy Research (WPI Academy I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Yuu Kajiwara
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan.
- International Institute for Carbon-Neutral Energy Research (WPI Academy I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Taro Koide
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan.
- International Institute for Carbon-Neutral Energy Research (WPI Academy I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Tatsuya Ando
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan.
- International Institute for Carbon-Neutral Energy Research (WPI Academy I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
- Center for Small Molecule Energy, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Ki-Seok Yoon
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan.
- International Institute for Carbon-Neutral Energy Research (WPI Academy I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
- Center for Small Molecule Energy, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Hidetaka Nakai
- Department of Energy and Materials, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Seiji Ogo
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan.
- International Institute for Carbon-Neutral Energy Research (WPI Academy I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
- Center for Small Molecule Energy, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
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3
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Kondo Y, Kawamura Y, Hattori F, Nakai H, Saito K, Suzuki D, Kozawa K, Yoshikawa T. Serological analysis of severe acute respiratory syndrome coronavirus 2 infection in children with Kawasaki disease. J Med Virol 2023; 95:e29274. [PMID: 38009251 DOI: 10.1002/jmv.29274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 11/10/2023] [Accepted: 11/16/2023] [Indexed: 11/28/2023]
Abstract
Multisystem inflammatory syndrome in children (MIS-C) was reported as a severe complication of coronavirus disease 2019; an infection with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), and was suggested to be associated with Kawasaki disease (KD) in terms of severe systemic inflammation and mucocutaneous symptoms. Because severe gastrointestinal symptoms and systemic shock are more frequently observed with MIS-C, patients with mild MIS-C might have been diagnosed with KD. In this study, titers of IgG antibodies against the SARS-CoV-2 S (S-IgG) and N proteins (N-IgG) were measured in 99 serum samples collected from patients with KD treated between January 2020 and December 2021 to evaluate the relationship between KD and SARS-CoV-2 infection. S-IgG were detected in only one patient out of 99 patients. This patient had coronavirus disease 2019 (COVID-19) 10 months before KD onset, and was unlikely MIS-C. According to characters of S-IgG and N-IgG, the patients was unlikely infected with SARS-CoV-2 just before the onset of KD. In addition to this study, the 26th Nationwide Survey and previous studies showed an association between KD and SARS-CoV-2 to be unlikely. In conclusion, SARS-CoV-2 infection was not observed in patients with KD until Delta predominance in Japan by the method of detecting SARS-CoV-2 IgG.
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Affiliation(s)
- Yotaro Kondo
- Department of Pediatrics, Fujita Health University School of Medicine, Toyoake, Japan
| | - Yoshiki Kawamura
- Department of Pediatrics, Fujita Health University School of Medicine, Toyoake, Japan
- Department of Pediatrics, Fujita Health University Okazaki Medical Center, Okazaki, Japan
| | - Fumihiko Hattori
- Department of Pediatrics, Kariya Toyota General Hospital, Kariya, Japan
- Department of Pediatrics, Toyokawa City Hospital, Toyokawa, Japan
| | - Hidetaka Nakai
- Department of Pediatrics, Toyokawa City Hospital, Toyokawa, Japan
| | - Kazuyoshi Saito
- Department of Pediatrics, Fujita Health University School of Medicine, Toyoake, Japan
| | - Daijiro Suzuki
- Department of Pediatrics, Fujita Health University School of Medicine, Toyoake, Japan
- Department of Pediatrics, Fujita Health University Okazaki Medical Center, Okazaki, Japan
| | - Kei Kozawa
- Department of Pediatrics, Fujita Health University School of Medicine, Toyoake, Japan
| | - Tetsushi Yoshikawa
- Department of Pediatrics, Fujita Health University School of Medicine, Toyoake, Japan
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4
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Takahashi C, Yatabe T, Nakai H, Ogo S. Single-Step Synthesis of Ni I from Ni II with H 2. Chemistry 2023:e202302297. [PMID: 37743326 DOI: 10.1002/chem.202302297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 09/22/2023] [Accepted: 09/22/2023] [Indexed: 09/26/2023]
Abstract
Chemists have long sought to regulate the reactivity of H2 , to yield hydride ions, hydrogen atoms, or electrons on demand. One source of inspiration for achieving this control is [NiFe]hydrogenase ([NiFe]H2 ase), which reacts with H2 to form various hydrogen active species such as NiIII hydride species, NiII hydride species, and NiI low-valent species. Chemists have attempted to synthesize these hydrogen active species not only as models for the active species of [NiFe]H2 ase, but also as electron transfer catalysts. However, the synthesis of NiI complex directly from H2 has not been reported. This paper reports the first example of a single-step synthesis of a NiI complex, via reaction of a NiII complex with H2 , stable for over 3 months at room temperature and we further demonstrate a reductive coupling of acridinium ions as part of a reaction cycle.
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Affiliation(s)
- Chiaki Takahashi
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka, 819-0395, Japan
- International Institute for Carbon-Neutral Energy Research (WPI Academy I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Takeshi Yatabe
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka, 819-0395, Japan
- International Institute for Carbon-Neutral Energy Research (WPI Academy I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka, 819-0395, Japan
- Center for Small Molecule Energy, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Hidetaka Nakai
- Department of Energy and Materials, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka, 577-8502, Japan
| | - Seiji Ogo
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka, 819-0395, Japan
- International Institute for Carbon-Neutral Energy Research (WPI Academy I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka, 819-0395, Japan
- Center for Small Molecule Energy, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka, 819-0395, Japan
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5
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Yagura S, Hayakawa N, Kuroda A, Ota K, Tanishita R, Urasaki G, Nakahodo T, Nakai H, Hoshino M, Hashizume D, Matsuo T. A series of ( E)-1,2-diaryldigermenes incorporating bulky Eind groups: structural characteristics and absorption properties. Dalton Trans 2022; 51:18633-18641. [PMID: 36448427 DOI: 10.1039/d2dt03427a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
A series of (E)-1,2-diaryldigermenes, (Eind)ArGeGeAr(Eind) [Ar = phenyl (2), thiophen-2-yl (3), 9,9-dimethyl-2-fluorenyl (4) and 2,2'-bithiophen-5-yl (5)], supported by the fused-ring bulky 1,1,3,3,5,5,7,7-octaethyl-s-hydrindacen-4-yl (Eind) groups, have been obtained as yellow-orange to red crystalline solids by the reaction of 1,2-dibromodigermene, (Eind)BrGeGeBr(Eind) (1), with ArLi. In the crystals of 2-5, the digermene cores show a flexible nature adopting a trans-bent geometry with the trans-bent angles (θ) between the Ge-Ge vector and the CEind-Ge-CAr plane of 34.04(12)° (2), 38.3(3)° and 38.8(3)° (3), 33.69(12)° (4) and 39.30(13)° (5). In the UV-vis spectra, strong π-π* absorptions have been observed with an absorption maximum at 451 nm (ε = 1.3 × 104) (2), 455 nm (ε = 9.7 × 103) (3), 480 nm (ε = 1.3 × 104) (4) and 497 nm (ε = 1.4 × 104) (5), retaining the GeGe double bond in solution. The absorption data and DFT calculations provide evidence for the intrinsic π-conjugation between the GeGe chromophore and aromatic rings involving the narrowing of the HOMO-LUMO gaps (ΔE) with the extension of the carbon π-electron systems.
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Affiliation(s)
- Shogo Yagura
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan.
| | - Naoki Hayakawa
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan.
| | - Airi Kuroda
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan.
| | - Kei Ota
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan.
| | - Rhota Tanishita
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan.
| | - Genya Urasaki
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan.
| | - Tsukasa Nakahodo
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan.
| | - Hidetaka Nakai
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan.
| | - Manabu Hoshino
- RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Daisuke Hashizume
- RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Tsukasa Matsuo
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan.
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6
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Ogo S, Yatabe T, Nakai H. Insights from hydrogenase model studies on C–C bond forming reactions. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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7
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Kajiwara Y, Yoshimizu H, Matsumoto K, Nakai H. Photoinduced Bending Crystals of a Rhodium Dithionite Complex with n-Methoxybutyl Moieties. CHEM LETT 2022. [DOI: 10.1246/cl.210798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yuu Kajiwara
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka 577-8502, Japan
| | - Hikaru Yoshimizu
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka 577-8502, Japan
| | - Kodai Matsumoto
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka 577-8502, Japan
| | - Hidetaka Nakai
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka 577-8502, Japan
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Kajiwara Y, Nakai H. Crystal polymorphism and crystalline-state photochromism of a rhodium dithionite complex with n-methoxypropyl moieties. CrystEngComm 2022. [DOI: 10.1039/d1ce01613j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The crystalline-state photochromism of 1MPro in the β-crystal was successfully disclosed by time-dependent X-ray diffraction experiments.
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Affiliation(s)
- Yuu Kajiwara
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka 577-8502, Japan
| | - Hidetaka Nakai
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka 577-8502, Japan
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9
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Kajiwara Y, Nakai H. Crystalline-State Photochromism of a Newly Synthesized Rhodium Dithionite Complex with Inflexible Cyclo-Pentyl Groups. BCSJ 2021. [DOI: 10.1246/bcsj.20210396] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yuu Kajiwara
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka 577-8502, Japan
| | - Hidetaka Nakai
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka 577-8502, Japan
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10
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Kajiwara Y, Miyata S, Nakai H. Unusual motion of the n-methoxypropyl moiety observed in the photochromic crystals of an organorhodium dithionite complex with n-methoxypropyltetramethylcyclopentadienyl ligands. Dalton Trans 2021; 51:48-52. [PMID: 34878457 DOI: 10.1039/d1dt03347f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The crystalline-state photochromism of a new organorhodium dinuclear complex having n-methoxypropyltetramethylcyclopentadienyl (η5-C5Me4n-C3H6OCH3) and photoresponsive dithionite (μ-O2SSO2) ligands was investigated directly by performing single-crystal X-ray diffraction experiments; a reversible conformational change of the n-methoxypropyl moiety was intriguingly observed during the course of a thermal back-reaction.
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Affiliation(s)
- Yuu Kajiwara
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka 577-8502, Japan.
| | - Seiya Miyata
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka 577-8502, Japan.
| | - Hidetaka Nakai
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka 577-8502, Japan.
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11
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Yatabe T, Futakuchi S, Miyazawa K, Shimauchi D, Takahashi Y, Yoon KS, Nakai H, Ogo S. Reductive C(sp 3)-C(sp 3) homo-coupling of benzyl or allyl halides with H 2 using a water-soluble electron storage catalyst. RSC Adv 2021; 11:39450-39454. [PMID: 35492457 PMCID: PMC9044531 DOI: 10.1039/d1ra08596d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 12/03/2021] [Indexed: 01/23/2023] Open
Abstract
This paper reports the first example of a reductive C(sp3)-C(sp3) homo-coupling of benzyl/allyl halides in aqueous solution by using H2 as an electron source {turnover numbers (TONs) = 0.5-2.3 for 12 h}. This homo-coupling reaction, promoted by visible light, is catalysed by a water-soluble electron storage catalyst (ESC). The reaction mechanism, and four requirements to make it possible, are also described.
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Affiliation(s)
- Takeshi Yatabe
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University 744 Moto-oka, Nishi-ku Fukuoka 819-0395 Japan .,International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University 744 Moto-oka, Nishi-ku Fukuoka 819-0395 Japan.,Center for Small Molecule Energy, Kyushu University 744 Moto-oka, Nishi-ku Fukuoka 819-0395 Japan
| | - Sayaka Futakuchi
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University 744 Moto-oka, Nishi-ku Fukuoka 819-0395 Japan
| | - Keishi Miyazawa
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University 744 Moto-oka, Nishi-ku Fukuoka 819-0395 Japan
| | - Daiki Shimauchi
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University 744 Moto-oka, Nishi-ku Fukuoka 819-0395 Japan
| | - Yukina Takahashi
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University 744 Moto-oka, Nishi-ku Fukuoka 819-0395 Japan .,International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University 744 Moto-oka, Nishi-ku Fukuoka 819-0395 Japan
| | - Ki-Seok Yoon
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University 744 Moto-oka, Nishi-ku Fukuoka 819-0395 Japan .,International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University 744 Moto-oka, Nishi-ku Fukuoka 819-0395 Japan.,Center for Small Molecule Energy, Kyushu University 744 Moto-oka, Nishi-ku Fukuoka 819-0395 Japan
| | - Hidetaka Nakai
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University 3-4-1 Kowakae, Higashi-Osaka Osaka 577-8502 Japan
| | - Seiji Ogo
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University 744 Moto-oka, Nishi-ku Fukuoka 819-0395 Japan .,International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University 744 Moto-oka, Nishi-ku Fukuoka 819-0395 Japan.,Center for Small Molecule Energy, Kyushu University 744 Moto-oka, Nishi-ku Fukuoka 819-0395 Japan
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12
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Suzuki S, Motogi J, Matsuzawa W, Takayanagi T, Umemoto T, Hirota N, Nakai H, Hyodo A, Satoh K, Otsuka T, Arita T, Yagi N, Yajima J, Yamashita T. Identifying patients with atrial fibrillation during sinus rhythm on ECG: confirming the utility of artificial intelligence algorithm in a small-scale cohort without structural heart diseases. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.3050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Detection of atrial fibrillation (AF) out of electrocardiograph (ECG) on sinus rhythm (SR) using artificial intelligence (AI) algorithm has been widely studied within recent couple of years. Generally, it is believed that a huge number of ECGs are necessary for developing an AI-enabled ECG to be adequate to correspond to a lot of minor variations of ECGs. For example, structural heart diseases have typical ECG characteristics, but they could be a noise for the purpose of detecting the small signs of electrocardiographic signature of AF. We hypothesized that when patients with structural heart diseases are excluded, AI-enabled ECG for identifying patients with AF can be developed with a small number of ECGs.
Methods
We developed an AI-enabled ECG using a convolutional neural network to detect the electrocardiographic signature of AF present during normal sinus rhythm (NSR) using a digital, standard 10-second, 12-lead ECGs. We included all patients who newly visited the Cardiovascular Institute with at least one NSR ECG between Feb 1, 2010, and March 31, 2018. We classified patients with at least one ECG with a rhythm of AF as positive for AF (AF label) and others as negative for AF (SR label). We allocated ECGs to the training, internal validation, and testing datasets in a 7:1:2 ratio. We calculated the area under the curve (AUC) of the receiver operating characteristic curve for the internal validation dataset to select a probability threshold, which we applied to the testing dataset. We evaluated model performance on the testing dataset by calculating the AUC and the sensitivity, specificity, F1 score, and accuracy with two-sided 95% confidence intervals (CIs).
Results
We totally included 19170 patients with 12-lead ECG. After excluding patients with structural heart diseases, 12825 patients with NSR ECGs at the initial visit were identified (1262 were clinically diagnosed as AF anytime during the time course and 11563 were never diagnosed as AF). Of 11563 non-AF patients, 1818 patients who were followed over 1095 days were selected for the analysis with the SR label, to secure the robustness for maintaining SR. Of 1262 AF patients, 251 patients were selected for the analysis with the AF label, of whom a NSR ECG within 31 days before or after the index AF ECG (the first AF ECG during the time course) could be obtained. In the patients with AF label, the NSR ECG of which the date was the nearest to the index AF ECG was selected for the analysis. The AI-enabled ECG showed an AUC of 0.88 (0.84–0.92) with sensitivity 81% (72–88), specificity 80% (77–83), F1 score 50% (43–57), and overall accuracy 80% (78–83).
Conclusion
An AI-enabled ECG acquired during NSR allowed identification of patients with AF in a small population without structural heart diseases.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- S Suzuki
- Cardiovascular Institute, Department of cardiovascular medicine, Tokyo, Japan
| | - J Motogi
- Nihon Kohden Corporation, Tokyo, Japan
| | | | | | - T Umemoto
- Nihon Kohden Corporation, Tokyo, Japan
| | - N Hirota
- Cardiovascular Institute, Department of cardiovascular medicine, Tokyo, Japan
| | - H Nakai
- Cardiovascular Institute, Department of cardiovascular medicine, Tokyo, Japan
| | - A Hyodo
- Nihon Kohden Corporation, Tokyo, Japan
| | - K Satoh
- Nihon Kohden Corporation, Tokyo, Japan
| | - T Otsuka
- Cardiovascular Institute, Department of cardiovascular medicine, Tokyo, Japan
| | - T Arita
- Cardiovascular Institute, Department of cardiovascular medicine, Tokyo, Japan
| | - N Yagi
- Cardiovascular Institute, Department of cardiovascular medicine, Tokyo, Japan
| | - J Yajima
- Cardiovascular Institute, Department of cardiovascular medicine, Tokyo, Japan
| | - T Yamashita
- Cardiovascular Institute, Department of cardiovascular medicine, Tokyo, Japan
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13
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Yatabe T, Tome T, Takahashi Y, Matsumoto T, Yoon KS, Nakai H, Ogo S. C-H Arylation of Benzene with Aryl Halides using H 2 and a Water-Soluble Rh-Based Electron Storage Catalyst. Chemistry 2021; 27:17326-17330. [PMID: 34636099 DOI: 10.1002/chem.202102735] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Indexed: 11/12/2022]
Abstract
This paper reports the first example of C-H arylation of benzene under mild conditions, using H2 as an electron source {turnover numbers (TONs)=0.7-2.0 for 24 h}. The reaction depends on a Rh-based electron storage catalyst, and proceeds at room temperature and in aqueous solution. Furthermore, the H2 is inactive during the radical transfer step, greatly reducing unwanted side reactions.
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Affiliation(s)
- Takeshi Yatabe
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka, 819-0395, Japan.,Center for Small Molecule Energy, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Tamon Tome
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Yukina Takahashi
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Takahiro Matsumoto
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka, 819-0395, Japan.,Center for Small Molecule Energy, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Ki-Seok Yoon
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka, 819-0395, Japan.,Center for Small Molecule Energy, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka, 819-0395, Japan
| | - Hidetaka Nakai
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka, 577-8502, Japan
| | - Seiji Ogo
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka, 819-0395, Japan.,Center for Small Molecule Energy, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka, 819-0395, Japan
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14
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Ohno R, Numata Y, Konaka S, Yagura S, Kuroda A, Harada M, Fujita N, Hayakawa N, Nakai H, Rosas-Sánchez A, Hashizume D, Matsuo T. Synthesis and Characterization of a Series of Diarylgermylenes and Dihalodigermenes Having Fused-Ring Bulky “Rind” Groups. BCSJ 2021. [DOI: 10.1246/bcsj.20210142] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Ryoma Ohno
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Yasuyuki Numata
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Shigeaki Konaka
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Shogo Yagura
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Airi Kuroda
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Mao Harada
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Naoko Fujita
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Naoki Hayakawa
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Hidetaka Nakai
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
| | - Alfredo Rosas-Sánchez
- RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Daisuke Hashizume
- RIKEN Center for Emergent Matter Science (CEMS), 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Tsukasa Matsuo
- Department of Applied Chemistry, Faculty of Science and Engineering, Kindai University, 3-4-1 Kowakae, Higashi-Osaka, Osaka 577-8502, Japan
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15
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Nakai H, Kajiwara Y, Miyata S. Molecular motion in organometallic crystals: photoinduced 2π/5 rotation of n-hexyltetramethylcyclopentadienyl ligand. CrystEngComm 2021. [DOI: 10.1039/d1ce00093d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Unusual rotation of the ligand (blue dotted circle) in organometallic crystals is disclosed by X-ray diffraction experiments.
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Affiliation(s)
- Hidetaka Nakai
- Department of Applied Chemistry
- Faculty of Science and Engineering
- Kindai University
- Higashi-Osaka 577-8502
- Japan
| | - Yuu Kajiwara
- Department of Applied Chemistry
- Faculty of Science and Engineering
- Kindai University
- Higashi-Osaka 577-8502
- Japan
| | - Seiya Miyata
- Department of Applied Chemistry
- Faculty of Science and Engineering
- Kindai University
- Higashi-Osaka 577-8502
- Japan
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16
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Taniguchi Y, Matsuoka Y, Onishi H, Nakai H, Okada K, Emoto N, Hirata K. Survival in patients with chronic thromboembolic pulmonary hypertension in the modern management era. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
The management of non-operable chronic thromboembolic pulmonary hypertension (CTEPH) has recently evolved with the availability of balloon pulmonary angioplasty (BPA) and pulmonary vasodilators. We launched BPA program since 2011. The aim was to analyze survival and treatment efficacy in the modern management era.
Method and result
We retrospectively reviewed data from 143 consecutive CTEPH patients diagnosed in our university from January 2011 (i.e. after the availability of BPA) to December 2019. Forty-one patients underwent PEA, in these 25 patients underwent additional BPA (Hybrid group) and other patients were treated with only PEA (PEA group). Ninety patients underwent BPA (BPA group), remaining 12 patients had not undergone any interventional treatments. The 1- and 5-year survival rates of operated patients (n=41) were 97.4% and 90.0%, compared to96.9% and 86.9% in not-operated patients (n=102), respectively (p=0.579) (Figure). There was no death in Hybrid group. Percent decrease of pulmonary vascular resistance in PEA group, Hybrid group, BPA group were −75.4±9.9%, −74.3±11.8%, −56.3±22.2%, respectively (p<0.01, one-way ANOVA). Absolute decrease of mean pulmonary artery pressure in each groups were −20.3±9.5mmHg, −24.5±8.8mmHg, −16.4±9.2mmHg, respectively (p<0.01, one-way ANOVA).
Conclusion
There was no longer significant difference of long-term survival between operated and not-operated CTEPH. Moreover, Hybrid approach might have the potential to lead notable improvement in the prognosis of CTEPH. BPA and PEA would be mutually complementary therapies in the modern management era.
Figure 1
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- Y Taniguchi
- Kobe University Graduate School of Medicine, Department of Cardiovascular Medicine, Kobe, Japan
| | - Y Matsuoka
- Kobe University Graduate School of Medicine, Department of Cardiovascular Medicine, Kobe, Japan
| | - H Onishi
- Kobe University Graduate School of Medicine, Department of Cardiovascular Medicine, Kobe, Japan
| | - H Nakai
- Kobe University, Division of Cardiovascular Surgery, Department of Surgery, Kobe, Japan
| | - K Okada
- Kobe University, Division of Cardiovascular Surgery, Department of Surgery, Kobe, Japan
| | - N Emoto
- Kobe University Graduate School of Medicine, Department of Cardiovascular Medicine, Kobe, Japan
| | - K Hirata
- Kobe University Graduate School of Medicine, Department of Cardiovascular Medicine, Kobe, Japan
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17
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Nakai H, Miyata S, Kajiwara Y, Ozawa Y, Abe M. A non-linear phenomenon observed in the photochromic crystals of a rhodium dithionite complex with n-propyl moieties. Dalton Trans 2020; 49:1721-1725. [DOI: 10.1039/c9dt04760c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A non-linear relationship between the conformational change of an n-propyl moiety and photochromic reaction was observed by performing time-dependent X-ray diffraction experiments.
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Affiliation(s)
- Hidetaka Nakai
- Department of Applied Chemistry
- Faculty of Science and Engineering
- Kindai University
- Higashi-Osaka 577-8502
- Japan
| | - Seiya Miyata
- Department of Applied Chemistry
- Faculty of Science and Engineering
- Kindai University
- Higashi-Osaka 577-8502
- Japan
| | - Yuu Kajiwara
- Department of Applied Chemistry
- Faculty of Science and Engineering
- Kindai University
- Higashi-Osaka 577-8502
- Japan
| | - Yoshiki Ozawa
- Graduate School of Material Science
- University of Hyogo
- Japan
| | - Masaaki Abe
- Graduate School of Material Science
- University of Hyogo
- Japan
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18
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Nakamura S, Miyado M, Saito K, Katsumi M, Nakamura A, Kobori Y, Tanaka Y, Ishikawa H, Yoshida A, Okada H, Hata K, Nakabayashi K, Okamura K, Ogata H, Matsubara Y, Ogata T, Nakai H, Fukami M. Next-generation sequencing for patients with non-obstructive azoospermia: implications for significant roles of monogenic/oligogenic mutations. Andrology 2018; 5:824-831. [PMID: 28718531 DOI: 10.1111/andr.12378] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Revised: 03/29/2017] [Accepted: 04/09/2017] [Indexed: 11/29/2022]
Abstract
Azoospermia affects up to 1% of adult men. Non-obstructive azoospermia is a multifactorial disorder whose molecular basis remains largely unknown. To date, mutations in several genes and multiple submicroscopic copy-number variations (CNVs) have been identified in patients with non-obstructive azoospermia. The aim of this study was to clarify the contribution of nucleotide substitutions in known causative genes and submicroscopic CNVs in the genome to the development of non-obstructive azoospermia. To this end, we conducted sequence analysis of 25 known disease-associated genes using next-generation sequencing and genome-wide copy-number analysis using array-based comparative genomic hybridization. We studied 40 Japanese patients with idiopathic non-obstructive azoospermia. Functional significance of molecular alterations was assessed by in silico analyses. As a result, we identified four putative pathogenic mutations, four rare polymorphisms possibly associated with disease risk, and four probable neutral variants in 10 patients. These sequence alterations included a heterozygous splice site mutation in SOHLH1 and a hemizygous missense substitution in TEX11, which have been reported as causes of non-obstructive azoospermia. Copy-number analysis detected five X chromosomal or autosomal CNVs of unknown clinical significance, in addition to one known pathogenic Y chromosomal microduplication. Five patients carried multiple molecular alterations. The results indicate that monogenic and oligogenic mutations, including those in SOHLH1 and TEX11, account for more than 10% of cases of idiopathic non-obstructive azoospermia. Furthermore, this study suggests possible contributions of substitutions in various genes as well as submicroscopic CNVs on the X chromosome and autosomes to non-obstructive azoospermia, which require further validation.
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Affiliation(s)
- S Nakamura
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo, Japan.,Department of Pediatric Urology, Jichi Medical University, Children's Medical Center Tochigi, Tochigi, Japan
| | - M Miyado
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo, Japan
| | - K Saito
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo, Japan.,Department of Comprehensive Reproductive Medicine, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan
| | - M Katsumi
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo, Japan.,Department of NCCHD Child Health and Development, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan
| | - A Nakamura
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Y Kobori
- Department of Urology, Dokkyo Medical University Koshigaya Hospital, Koshigaya, Japan
| | - Y Tanaka
- Department of Pediatrics, Tokyo Dental College Ichikawa General Hospital, Ichikawa, Japan
| | - H Ishikawa
- Reproduction Center, Tokyo Dental College Ichikawa General Hospital, Ichikawa, Japan
| | - A Yoshida
- Reproduction Center, Kiba Park Clinic, Tokyo, Japan
| | - H Okada
- Department of Urology, Dokkyo Medical University Koshigaya Hospital, Koshigaya, Japan
| | - K Hata
- Department of Maternal-Fetal Biology, National Research Institute for Child Health and Development, Tokyo, Japan
| | - K Nakabayashi
- Department of Maternal-Fetal Biology, National Research Institute for Child Health and Development, Tokyo, Japan
| | - K Okamura
- Department of Systems BioMedicine, National Research Institute for Child Health and Development, Tokyo, Japan
| | - H Ogata
- Department of Maternal-Fetal Biology, National Research Institute for Child Health and Development, Tokyo, Japan
| | - Y Matsubara
- National Research Institute for Child Health and Development, Tokyo, Japan
| | - T Ogata
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo, Japan.,Department of Pediatrics, Hamamatsu University School of Medicine, Hamamatsu, Japan
| | - H Nakai
- Department of Pediatric Urology, Jichi Medical University, Children's Medical Center Tochigi, Tochigi, Japan
| | - M Fukami
- Department of Molecular Endocrinology, National Research Institute for Child Health and Development, Tokyo, Japan
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19
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Hayakawa N, Sugahara T, Numata Y, Kawaai H, Yamatani K, Nishimura S, Goda S, Suzuki Y, Tanikawa T, Nakai H, Hashizume D, Sasamori T, Tokitoh N, Matsuo T. 1,2-Dihalodigermenes bearing bulky Eind groups: synthesis, characterization, and conversion to halogermylenoids. Dalton Trans 2018; 47:814-822. [PMID: 29250632 DOI: 10.1039/c7dt03819d] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We present the transformation of low-coordinate germanium(ii) compounds.
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20
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Penson R, Kaminsky-Forrett MC, Ledermann J, Brown C, Plante M, Korach J, Huzarski T, Gomez de Liano Lista A, Pisano C, Friedlander M, Colombo N, Gropp-Meier M, Nakai H, Sonke G, Kim JW, Vergote I, Allen A, Pujade-Lauraine E. Efficacy of olaparib maintenance therapy in patients (pts) with platinum-sensitive relapsed ovarian cancer (PSROC) by lines of prior chemotherapy: Phase III SOLO2 trial (ENGOT Ov-21). Ann Oncol 2017. [DOI: 10.1093/annonc/mdx372.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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21
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Manabe R, Nakatsubo H, Gondo A, Murakami K, Ogo S, Tsuneki H, Ikeda M, Ishikawa A, Nakai H, Sekine Y. Electrocatalytic synthesis of ammonia by surface proton hopping. Chem Sci 2017; 8:5434-5439. [PMID: 28970922 PMCID: PMC5609515 DOI: 10.1039/c7sc00840f] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Accepted: 05/20/2017] [Indexed: 11/30/2022] Open
Abstract
Highly efficient ammonia synthesis at a low temperature is desirable for future energy and material sources. We accomplished efficient electrocatalytic low-temperature ammonia synthesis with the highest yield ever reported. The maximum ammonia synthesis rate was 30 099 μmol gcat-1 h-1 over a 9.9 wt% Cs/5.0 wt% Ru/SrZrO3 catalyst, which is a very high rate. Proton hopping on the surface of the heterogeneous catalyst played an important role in the reaction, revealed by in situ IR measurements. Hopping protons activate N2 even at low temperatures, and they moderate the harsh reaction condition requirements. Application of an electric field to the catalyst resulted in a drastic decrease in the apparent activation energy from 121 kJ mol-1 to 37 kJ mol-1. N2 dissociative adsorption is markedly promoted by the application of the electric field, as evidenced by DFT calculations. The process described herein opens the door for small-scale, on-demand ammonia synthesis.
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Affiliation(s)
- R Manabe
- Department of Applied Chemistry , Waseda University , 3-4-1, Okubo, Shinjuku , Tokyo 169-8555 , Japan .
| | - H Nakatsubo
- Department of Applied Chemistry , Waseda University , 3-4-1, Okubo, Shinjuku , Tokyo 169-8555 , Japan .
| | - A Gondo
- Department of Applied Chemistry , Waseda University , 3-4-1, Okubo, Shinjuku , Tokyo 169-8555 , Japan .
| | - K Murakami
- Department of Applied Chemistry , Waseda University , 3-4-1, Okubo, Shinjuku , Tokyo 169-8555 , Japan .
| | - S Ogo
- Department of Applied Chemistry , Waseda University , 3-4-1, Okubo, Shinjuku , Tokyo 169-8555 , Japan .
| | - H Tsuneki
- Nippon Shokubai Co. Ltd. , 5-8, Nishiotabi, Suita , Osaka 564-0034 , Japan
| | - M Ikeda
- Nippon Shokubai Co. Ltd. , 5-8, Nishiotabi, Suita , Osaka 564-0034 , Japan
| | - A Ishikawa
- Department of Chemistry and Biochemistry , Waseda Univ. , Japan
| | - H Nakai
- Department of Chemistry and Biochemistry , Waseda Univ. , Japan
- ESICB , Kyoto University , Kyoto-daigaku-katsura , Kyoto , 615-8520 Japan
| | - Y Sekine
- Department of Applied Chemistry , Waseda University , 3-4-1, Okubo, Shinjuku , Tokyo 169-8555 , Japan .
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22
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Shigehara Y, Okuda S, Hayashi R, Nakai H, Abe R, Ghani Kibbi A, Kurban M, Shimomura Y. 493 Identification of a novel causative gene responsible for autosomal recessive congenital ichthyosis. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.513] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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23
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Nakai H, Kuyama M, Seo J, Goto T, Matsumoto T, Ogo S. Luminescent Tb(iii) and Sm(iii) complexes with a 1,4,7-triazacyclononane-based tris-aryloxide ligand for high-performance oxygen sensors. Dalton Trans 2017; 46:9126-9130. [DOI: 10.1039/c7dt01388d] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
This paper presents (i) a high-performance Tb(iii)-based oxygen sensor (1Tb/PS) and (ii) a lanthanide(iii)-based colorimetric luminescent oxygen sensor (1TbSm/PS).
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Affiliation(s)
- Hidetaka Nakai
- Department of Chemistry and Biochemistry
- Graduate School of Engineering
- Kyushu University
- Fukuoka 819-0395
- Japan
| | - Masafumi Kuyama
- Department of Chemistry and Biochemistry
- Graduate School of Engineering
- Kyushu University
- Fukuoka 819-0395
- Japan
| | - Juncheol Seo
- Department of Chemistry and Biochemistry
- Graduate School of Engineering
- Kyushu University
- Fukuoka 819-0395
- Japan
| | - Takahiro Goto
- Department of Chemistry and Biochemistry
- Graduate School of Engineering
- Kyushu University
- Fukuoka 819-0395
- Japan
| | - Takahiro Matsumoto
- Department of Chemistry and Biochemistry
- Graduate School of Engineering
- Kyushu University
- Fukuoka 819-0395
- Japan
| | - Seiji Ogo
- Department of Chemistry and Biochemistry
- Graduate School of Engineering
- Kyushu University
- Fukuoka 819-0395
- Japan
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24
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Dissen GA, Adachi K, Lomniczi A, Chatkupt T, Davidson BL, Nakai H, Ojeda SR. Engineering a gene silencing viral construct that targets the cat hypothalamus to induce permanent sterility: An update. Reprod Domest Anim 2016; 52 Suppl 2:354-358. [PMID: 27859771 DOI: 10.1111/rda.12834] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The intent of this contribution is to provide an update of the progress we have made towards developing a method/treatment to permanently sterilize cats. Our approach employs two complementary methodologies: RNA interference (RNAi) to silence genes involved in the central control of reproduction and a virus-based gene therapy system intended to deliver RNAi selectively to the hypothalamus (where these genes are expressed) via the systemic administration of modified viruses. We selected the hypothalamus because it contains neurons expressing Kiss1 and Tac3, two genes essential for reproduction and fertility. We chose the non-pathogenic adeno-associated virus (AAV) as a vector whose tropism could be modified to target the hypothalamus. The issues that must be overcome to utilize this vector as a delivery vehicle to induce sterility include modification of the wild-type AAV to target the hypothalamic region of the brain with a simultaneous reduction in targeting of peripheral tissues and non-hypothalamic brain regions, identification of RNAi targets that will effectively reduce the expression of Kiss1 and Tac3 without off-target effects, and determination if neutralizing antibodies to the AAV serotype of choice are present in cats. Successful resolution of these issues will pave the way for the development of a powerful tool to induce the permanent sterility in cats.
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Affiliation(s)
- G A Dissen
- Division of Neuroscience, Oregon National Primate Research Center, Oregon Health and Science University, Beaverton, OR, USA
| | - K Adachi
- Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, OR, USA
| | - A Lomniczi
- Division of Neuroscience, Oregon National Primate Research Center, Oregon Health and Science University, Beaverton, OR, USA
| | - T Chatkupt
- Department of Comparative Medicine, Oregon Health and Science University, Portland, OR, USA
| | - B L Davidson
- Raymond G. Perelman Center for Cellular and Molecular Therapeutics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - H Nakai
- Division of Neuroscience, Oregon National Primate Research Center, Oregon Health and Science University, Beaverton, OR, USA.,Department of Molecular and Medical Genetics, Oregon Health and Science University, Portland, OR, USA
| | - S R Ojeda
- Division of Neuroscience, Oregon National Primate Research Center, Oregon Health and Science University, Beaverton, OR, USA
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Tobiume T, Kotani Y, Takaya H, Nakai H, Tsuji I, Suzuki A, Mandai M. Determinant factors of postoperative recurrence of endometriosis: difference between endometrioma and pain. Eur J Obstet Gynecol Reprod Biol 2016; 205:54-9. [PMID: 27566223 DOI: 10.1016/j.ejogrb.2016.07.516] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Revised: 06/21/2016] [Accepted: 07/27/2016] [Indexed: 10/21/2022]
Abstract
OBJECTIVE Although the postoperative use of hormonal treatment for endometriosis is recommended in the European Society of Human Reproduction and Embryology guidelines to prevent the recurrence of endometriosis-associated dysmenorrhoea, hormonal treatment may not be necessary for all patients who undergo surgical treatment for endometriosis. The aim of this study was to clarify the determinant factors that predict the recurrence of endometriosis after surgery in order to develop personalized hormonal treatment recommendations. Factors associated with the recurrence of endometrioma and pain were investigated independently to identify the likelihood of recurrence in each individual patient. STUDY DESIGN Between 2008 and 2013, 352 patients underwent surgery and were diagnosed with endometriosis based on pathological findings at the study hospital. Among these patients, 191 experienced a recurrence of endometrioma in the absence of pre- or postoperative hormonal treatment. Various clinical factors such as pre-operative pain, intra-operative findings and postoperative improvement of pain were compared between patients who experienced recurrence after surgery and those who did not. RESULTS The cumulative 5-year recurrence rate of endometrioma was 28.7% among the 191 patients who did not undergo pre- or postoperative hormonal treatment. Significant differences were detected in maximum tumour diameter, revised American Society for Reproductive Medicine score (r-ASRM score), operative time and operative blood loss between patients in the recurrent endometrioma group and the non-recurrent endometrioma group; only the r-ASRM score was significantly correlated with recurrence of endometrioma in the multivariate analysis. The cumulative 5-year rate of persistent/recurrent pain was 33.4%. There were significant differences in the postoperative improvement of pain between the persistent/recurrent pain group and the non-recurrent pain group according to the univariate and multivariate analyses. CONCLUSION This study suggests that the risk factors for recurrence of endometrioma differ from the risk factors for recurrence of pain. The use of postoperative hormonal treatment should be considered based on the dominant risk factors and needs of each patient.
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Affiliation(s)
- T Tobiume
- Department of Obstetrics and Gynaecology, Kinki University Faculty of Medicine, Osaka, Japan.
| | - Y Kotani
- Department of Obstetrics and Gynaecology, Kinki University Faculty of Medicine, Osaka, Japan
| | - H Takaya
- Department of Obstetrics and Gynaecology, Kinki University Faculty of Medicine, Osaka, Japan
| | - H Nakai
- Department of Obstetrics and Gynaecology, Kinki University Faculty of Medicine, Osaka, Japan
| | - I Tsuji
- Department of Obstetrics and Gynaecology, Kinki University Faculty of Medicine, Osaka, Japan
| | - A Suzuki
- Department of Obstetrics and Gynaecology, Kinki University Faculty of Medicine, Osaka, Japan
| | - M Mandai
- Department of Obstetrics and Gynaecology, Kinki University Faculty of Medicine, Osaka, Japan.
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26
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Nakai H, Seo J, Kitagawa K, Goto T, Nonaka K, Matsumoto T, Ogo S. Control of Lanthanide Coordination Environment: Synthesis, Structure, and Oxygen-Sensitive Luminescence Properties of an Eight-Coordinate Tb(III) Complex. Inorg Chem 2016; 55:6609-15. [DOI: 10.1021/acs.inorgchem.6b00800] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hidetaka Nakai
- Department of Chemistry and Biochemistry, Graduate School of Engineering, ‡Center for Small
Molecule Energy, and §International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Juncheol Seo
- Department of Chemistry and Biochemistry, Graduate School of Engineering, ‡Center for Small
Molecule Energy, and §International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Kazuhiro Kitagawa
- Department of Chemistry and Biochemistry, Graduate School of Engineering, ‡Center for Small
Molecule Energy, and §International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Takahiro Goto
- Department of Chemistry and Biochemistry, Graduate School of Engineering, ‡Center for Small
Molecule Energy, and §International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Kyoshiro Nonaka
- Department of Chemistry and Biochemistry, Graduate School of Engineering, ‡Center for Small
Molecule Energy, and §International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Takahiro Matsumoto
- Department of Chemistry and Biochemistry, Graduate School of Engineering, ‡Center for Small
Molecule Energy, and §International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Seiji Ogo
- Department of Chemistry and Biochemistry, Graduate School of Engineering, ‡Center for Small
Molecule Energy, and §International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
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Nakai H, Matsuba K, Akimoto M, Nozaki T, Matsumoto T, Isobe K, Irie M, Ogo S. Photoinduced bending of rod-like millimetre-size crystals of a rhodium dithionite complex with n-pentyl moieties. Chem Commun (Camb) 2016; 52:4349-52. [PMID: 26923170 DOI: 10.1039/c6cc00059b] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Rod-like millimetre-size crystals of a newly prepared rhodium dithionite complex with n-pentyl moieties bend upon photoirradiation and return to the initial shape upon heating; the roles of the flexible n-pentyl moieties as well as the photoreactive dithionite unit (μ-O2SSO2) are disclosed by single crystal X-ray diffraction.
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Affiliation(s)
- Hidetaka Nakai
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan. and Centre for Small Molecule Energy, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan and International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan and Department of Chemistry, Graduate School of Natural Science & Technology, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan
| | - Kengo Matsuba
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan.
| | - Masataka Akimoto
- Department of Chemistry, Graduate School of Natural Science & Technology, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan
| | - Tomonori Nozaki
- Department of Chemistry, Graduate School of Natural Science & Technology, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan
| | - Takahiro Matsumoto
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan. and Centre for Small Molecule Energy, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan and International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Kiyoshi Isobe
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan. and Department of Chemistry, Graduate School of Natural Science & Technology, Kanazawa University, Kakuma-machi, Kanazawa, 920-1192, Japan
| | - Masahiro Irie
- Research Center for Smart Molecules, Rikkyo University, Nishi-Ikebukuro 3-34-1, Toshima-ku, Tokyo 171-8501, Japan
| | - Seiji Ogo
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan. and Centre for Small Molecule Energy, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan and International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
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Matsumoto T, Yoshimoto K, Zheng C, Shomura Y, Higuchi Y, Nakai H, Ogo S. Synthesis and Reactivity of a Water-soluble NiRu Monohydride Complex with a Tethered Pyridine Moiety. CHEM LETT 2016. [DOI: 10.1246/cl.151029] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Takahiro Matsumoto
- Center for Small Molecule Energy, Kyushu University
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University
| | - Koji Yoshimoto
- Center for Small Molecule Energy, Kyushu University
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University
| | - Chunbai Zheng
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University
| | - Yasuhito Shomura
- Center for Small Molecule Energy, Kyushu University
- Department of Life Science, Graduate School of Life Science, University of Hyogo
| | - Yoshiki Higuchi
- Department of Life Science, Graduate School of Life Science, University of Hyogo
| | - Hidetaka Nakai
- Center for Small Molecule Energy, Kyushu University
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University
| | - Seiji Ogo
- Center for Small Molecule Energy, Kyushu University
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University
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Yoshimoto K, Yatabe T, Matsumoto T, Robertson A, Nakai H, Tanaka H, Kamachi T, Shiota Y, Yoshizawa K, Asazawa K, Tanaka H, Ogo S. Synthesis and Structure of a Water-soluble µ-η1:η1-N2 Dinuclear RuII Complex with a Polyamine Ligand. CHEM LETT 2016. [DOI: 10.1246/cl.151004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Koji Yoshimoto
- Center for Small Molecule Energy, Kyushu University
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University
- R & D Division, Daihatsu Motor Co., Ltd
| | - Takeshi Yatabe
- Center for Small Molecule Energy, Kyushu University
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University
| | - Takahiro Matsumoto
- Center for Small Molecule Energy, Kyushu University
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University
| | - Andrew Robertson
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University
| | - Hidetaka Nakai
- Center for Small Molecule Energy, Kyushu University
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University
| | - Hiromasa Tanaka
- Institute for Materials Chemistry and Engineering, Kyushu University
| | - Takashi Kamachi
- Institute for Materials Chemistry and Engineering, Kyushu University
| | - Yoshihito Shiota
- Institute for Materials Chemistry and Engineering, Kyushu University
| | - Kazunari Yoshizawa
- Center for Small Molecule Energy, Kyushu University
- Institute for Materials Chemistry and Engineering, Kyushu University
| | | | - Hirohisa Tanaka
- Center for Small Molecule Energy, Kyushu University
- R & D Division, Daihatsu Motor Co., Ltd
| | - Seiji Ogo
- Center for Small Molecule Energy, Kyushu University
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University
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30
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Affiliation(s)
- Keisuke Takashita
- Center for Small Molecule Energy, Kyushu University
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University
| | - Takahiro Matsumoto
- Center for Small Molecule Energy, Kyushu University
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University
| | - Takeshi Yatabe
- Center for Small Molecule Energy, Kyushu University
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University
| | - Hidetaka Nakai
- Center for Small Molecule Energy, Kyushu University
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University
| | - Seiji Ogo
- Center for Small Molecule Energy, Kyushu University
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University
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31
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Nishi H, Izumoto S, Nakamura K, Nakai H, Sato T. Dextran and dextrin as chiral selectors in capillary zone electrophoresis. Chromatographia 2016. [DOI: 10.1007/bf02267693] [Citation(s) in RCA: 70] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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32
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Kishima T, Matsumoto T, Nakai H, Hayami S, Ohta T, Ogo S. Back Cover: A High-Valent Iron(IV) Peroxo Core Derived from O 2
(Angew. Chem. Int. Ed. 2/2016). Angew Chem Int Ed Engl 2016. [DOI: 10.1002/anie.201510988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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33
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Kishima T, Matsumoto T, Nakai H, Hayami S, Ohta T, Ogo S. Rücktitelbild: A High-Valent Iron(IV) Peroxo Core Derived from O 2
(Angew. Chem. 2/2016). Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201510988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Affiliation(s)
- Keisuke Takashita
- Center for Small Molecule Energy, Kyushu University
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University
| | - Takahiro Matsumoto
- Center for Small Molecule Energy, Kyushu University
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University
| | - Takeshi Yatabe
- Center for Small Molecule Energy, Kyushu University
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University
| | - Hidetaka Nakai
- Center for Small Molecule Energy, Kyushu University
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University
| | - Masatatsu Suzuki
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University
| | - Seiji Ogo
- Center for Small Molecule Energy, Kyushu University
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University
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35
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Yoshimoto K, Yatabe T, Matsumoto T, Tran VH, Robertson A, Nakai H, Asazawa K, Tanaka H, Ogo S. Inorganic clusters with a [Fe2MoOS3] core—a functional model for acetylene reduction by nitrogenases. Dalton Trans 2016; 45:14620-7. [DOI: 10.1039/c6dt01655c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
We report the first example of a wholly inorganic mimic of a part of the FeMoco active centre of nitrogenases.
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Affiliation(s)
- Koji Yoshimoto
- Centre for Small Molecule Energy
- Kyushu University
- Fukuoka 819-0395
- Japan
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER)
| | - Takeshi Yatabe
- Centre for Small Molecule Energy
- Kyushu University
- Fukuoka 819-0395
- Japan
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER)
| | - Takahiro Matsumoto
- Centre for Small Molecule Energy
- Kyushu University
- Fukuoka 819-0395
- Japan
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER)
| | - Viet-Ha Tran
- Centre for Small Molecule Energy
- Kyushu University
- Fukuoka 819-0395
- Japan
- Department of Chemistry and Biochemistry
| | - Andrew Robertson
- Department of Chemistry and Biochemistry
- Graduate School of Engineering
- Kyushu University
- Fukuoka 819-0395
- Japan
| | - Hidetaka Nakai
- Centre for Small Molecule Energy
- Kyushu University
- Fukuoka 819-0395
- Japan
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER)
| | | | - Hirohisa Tanaka
- Centre for Small Molecule Energy
- Kyushu University
- Fukuoka 819-0395
- Japan
- R & D Division
| | - Seiji Ogo
- Centre for Small Molecule Energy
- Kyushu University
- Fukuoka 819-0395
- Japan
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER)
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Nakai H, Kitagawa K, Seo J, Matsumoto T, Ogo S. A gadolinium(iii) complex that shows room-temperature phosphorescence in the crystalline state. Dalton Trans 2016; 45:11620-3. [DOI: 10.1039/c6dt01303a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
A gadolinium(iii) complex that shows crystalline-state phosphorescence is presented; crystals color can be changed by doping of 1-naphthol.
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Affiliation(s)
- Hidetaka Nakai
- Department of Chemistry and Biochemistry
- Graduate School of Engineering
- Kyushu University
- Fukuoka 819-0395
- Japan
| | - Kazuhiro Kitagawa
- Department of Chemistry and Biochemistry
- Graduate School of Engineering
- Kyushu University
- Fukuoka 819-0395
- Japan
| | - Juncheol Seo
- Department of Chemistry and Biochemistry
- Graduate School of Engineering
- Kyushu University
- Fukuoka 819-0395
- Japan
| | - Takahiro Matsumoto
- Department of Chemistry and Biochemistry
- Graduate School of Engineering
- Kyushu University
- Fukuoka 819-0395
- Japan
| | - Seiji Ogo
- Department of Chemistry and Biochemistry
- Graduate School of Engineering
- Kyushu University
- Fukuoka 819-0395
- Japan
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Abstract
A 1,4,7-triazacyclononane based tris-aryloxide ligand provides an unprecedented oxygen-sensitive luminescent dysprosium(iii) complex.
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Affiliation(s)
- Hidetaka Nakai
- Department of Chemistry and Biochemistry
- Graduate School of Engineering
- Kyushu University
- Nishi-ku
- Japan
| | - Juncheol Seo
- Department of Chemistry and Biochemistry
- Graduate School of Engineering
- Kyushu University
- Nishi-ku
- Japan
| | - Kazuhiro Kitagawa
- Department of Chemistry and Biochemistry
- Graduate School of Engineering
- Kyushu University
- Nishi-ku
- Japan
| | - Takahiro Goto
- Department of Chemistry and Biochemistry
- Graduate School of Engineering
- Kyushu University
- Nishi-ku
- Japan
| | - Takahiro Matsumoto
- Department of Chemistry and Biochemistry
- Graduate School of Engineering
- Kyushu University
- Nishi-ku
- Japan
| | - Seiji Ogo
- Department of Chemistry and Biochemistry
- Graduate School of Engineering
- Kyushu University
- Nishi-ku
- Japan
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Affiliation(s)
- N Rajan
- Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, NE1 3BZ, U.K.
| | - N Sinclair
- Institute of Genetic Medicine, Newcastle University, Newcastle upon Tyne, NE1 3BZ, U.K
| | - H Nakai
- Graduate School of Science and Technology, Niigata University, Niigata, Japan
| | - Y Shimomura
- Laboratory of Genetic Skin Diseases, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
| | - S Natarajan
- The James Cook University Hospital, Middlesbrough, TS4 3BW, U.K
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Kishima T, Matsumoto T, Nakai H, Hayami S, Ohta T, Ogo S. A High-Valent Iron(IV) Peroxo Core Derived from O2. Angew Chem Int Ed Engl 2015; 55:724-7. [PMID: 26509430 DOI: 10.1002/anie.201507022] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Revised: 09/28/2015] [Indexed: 11/07/2022]
Abstract
Dioxygen-tolerant [NiFe] hydrogenases catalyze not only the conversion of H2 into 2 H(+) and 2 e(-) but also the reduction of O2 to H2O. Chemists have sought to mimic such bifunctional catalysts with structurally simpler compounds to facilitate analysis and improvement. Herein, we report a new [NiFe]-based catalyst for O2 reduction via an O2 adduct. Structural investigations reveal the first example of a side-on iron(IV) peroxo complex.
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Affiliation(s)
- Takahiro Kishima
- Center for Small Molecule Energy, Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395 (Japan) ogo.seiji.872m.kyushu-u.ac.jp http://www.cstm.kyushu-u.ac.jp/ogo/
| | - Takahiro Matsumoto
- Center for Small Molecule Energy, Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395 (Japan) ogo.seiji.872m.kyushu-u.ac.jp http://www.cstm.kyushu-u.ac.jp/ogo/
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395 (Japan)
| | - Hidetaka Nakai
- Center for Small Molecule Energy, Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395 (Japan) ogo.seiji.872m.kyushu-u.ac.jp http://www.cstm.kyushu-u.ac.jp/ogo/
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395 (Japan)
| | - Shinya Hayami
- Graduate School of Science and Technology, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555 (Japan)
| | - Takehiro Ohta
- Institute for Materials Chemistry and Engineering, Kyushu University, Higashi-ku, Fukuoka 812-8581 (Japan)
| | - Seiji Ogo
- Center for Small Molecule Energy, Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395 (Japan) ogo.seiji.872m.kyushu-u.ac.jp http://www.cstm.kyushu-u.ac.jp/ogo/
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395 (Japan)
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41
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Yatabe T, Kikkawa M, Matsumoto T, Urabe K, Robertson A, Nakai H, Ogo S. An Fe-based Model for Metabolism Linking between O 2-reduction and H 2O-oxidation. CHEM LETT 2015. [DOI: 10.1246/cl.150468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Takeshi Yatabe
- Center for Small Molecule Energy, Kyushu University
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University
| | - Mitsuhiro Kikkawa
- Center for Small Molecule Energy, Kyushu University
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University
| | - Takahiro Matsumoto
- Center for Small Molecule Energy, Kyushu University
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University
| | - Keishi Urabe
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University
| | - Andrew Robertson
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University
| | - Hidetaka Nakai
- Center for Small Molecule Energy, Kyushu University
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University
| | - Seiji Ogo
- Center for Small Molecule Energy, Kyushu University
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University
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42
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Tran VH, Yatabe T, Matsumoto T, Nakai H, Suzuki K, Enomoto T, Ogo S. An N 2-compatible Ni 0 Metal–Organic Chemical Vapor Deposition (MOCVD) Precursor. CHEM LETT 2015. [DOI: 10.1246/cl.150155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Viet-Ha Tran
- Center for Small Molecule Energy, Kyushu University
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University
| | - Takeshi Yatabe
- Center for Small Molecule Energy, Kyushu University
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University
| | - Takahiro Matsumoto
- Center for Small Molecule Energy, Kyushu University
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University
| | - Hidetaka Nakai
- Center for Small Molecule Energy, Kyushu University
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University
| | - Kazuharu Suzuki
- Specialty Chemicals Section, Technology Development, Technical Division, Tanaka Kikinzoku Kogyo K. K
| | - Takao Enomoto
- Center for Small Molecule Energy, Kyushu University
- Specialty Chemicals Section, Technology Development, Technical Division, Tanaka Kikinzoku Kogyo K. K
| | - Seiji Ogo
- Center for Small Molecule Energy, Kyushu University
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University
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43
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Nakamori H, Matsumoto T, Yatabe T, Yoon KS, Nakai H, Ogo S. Synthesis and crystal structure of a dinuclear, monomeric Mn(II) p-semiquinonato complex. Chem Commun (Camb) 2015; 50:13059-61. [PMID: 25221918 DOI: 10.1039/c4cc06055e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Herein, we report the first crystal structure of a monomeric p-semiquinonato d-block complex and its reactivity toward dioxygen, closely associated with a biological system of an oxygen evolving centre of photosystem II.
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Affiliation(s)
- Harutaka Nakamori
- Centre for Small Molecule Energy, Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan.
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44
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Tran VH, Yatabe T, Matsumoto T, Nakai H, Suzuki K, Enomoto T, Hibino T, Kaneko K, Ogo S. An IrSi oxide film as a highly active water-oxidation catalyst in acidic media. Chem Commun (Camb) 2015; 51:12589-92. [DOI: 10.1039/c5cc04286k] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report an acid-stable IrSi oxide film made by MOCVD of an IrV complex for electrochemical water-oxidation.
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Affiliation(s)
- Viet-Ha Tran
- Centre for Small Molecule Energy
- Kyushu University
- Nishi-ku
- Japan
- Department of Chemistry and Biochemistry
| | - Takeshi Yatabe
- Centre for Small Molecule Energy
- Kyushu University
- Nishi-ku
- Japan
- Department of Chemistry and Biochemistry
| | - Takahiro Matsumoto
- Centre for Small Molecule Energy
- Kyushu University
- Nishi-ku
- Japan
- Department of Chemistry and Biochemistry
| | - Hidetaka Nakai
- Centre for Small Molecule Energy
- Kyushu University
- Nishi-ku
- Japan
- Department of Chemistry and Biochemistry
| | - Kazuharu Suzuki
- Chemical Materials Development Department
- Technology Development Sector
- Tanaka Kikinzoku Kogyo K. K
- Tsukuba
- Japan
| | - Takao Enomoto
- Centre for Small Molecule Energy
- Kyushu University
- Nishi-ku
- Japan
- Chemical Materials Development Department
| | - Takashi Hibino
- Centre for Small Molecule Energy
- Kyushu University
- Nishi-ku
- Japan
- Graduate School of Environmental Studies
| | - Kenji Kaneko
- Centre for Small Molecule Energy
- Kyushu University
- Nishi-ku
- Japan
- Department of Materials Science and Engineering
| | - Seiji Ogo
- Centre for Small Molecule Energy
- Kyushu University
- Nishi-ku
- Japan
- Department of Chemistry and Biochemistry
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45
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Nakai H, Nonaka K, Goto T, Seo J, Matsumoto T, Ogo S. A macrocyclic tetraamine bearing four phenol groups: a new class of heptadentate ligands to provide an oxygen-sensitive luminescent Tb(iii) complex with an extendable phenol pendant arm. Dalton Trans 2015; 44:10923-7. [DOI: 10.1039/c5dt00816f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The potentially N4O4-octadentate ligand unprecedentedly coordinates to the Tb3+ion in a N4O3-heptadentate fashion and provides a highly luminescent and highly oxygen-sensitive terbium(iii) complex.
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Affiliation(s)
- Hidetaka Nakai
- Department of Chemistry and Biochemistry
- Graduate School of Engineering
- Kyushu University
- Fukuoka 819-0395
- Japan
| | - Kyoshiro Nonaka
- Department of Chemistry and Biochemistry
- Graduate School of Engineering
- Kyushu University
- Fukuoka 819-0395
- Japan
| | - Takahiro Goto
- Department of Chemistry and Biochemistry
- Graduate School of Engineering
- Kyushu University
- Fukuoka 819-0395
- Japan
| | - Juncheol Seo
- Department of Chemistry and Biochemistry
- Graduate School of Engineering
- Kyushu University
- Fukuoka 819-0395
- Japan
| | - Takahiro Matsumoto
- Department of Chemistry and Biochemistry
- Graduate School of Engineering
- Kyushu University
- Fukuoka 819-0395
- Japan
| | - Seiji Ogo
- Department of Chemistry and Biochemistry
- Graduate School of Engineering
- Kyushu University
- Fukuoka 819-0395
- Japan
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46
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Nguyen NT, Mori Y, Matsumoto T, Yatabe T, Kabe R, Nakai H, Yoon KS, Ogo S. A [NiFe]hydrogenase model that catalyses the release of hydrogen from formic acid. Chem Commun (Camb) 2014; 50:13385-7. [DOI: 10.1039/c4cc05911e] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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47
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Affiliation(s)
- Hidetaka Nakai
- Department
of Chemistry and Biochemistry, Graduate
School of Engineering, and ‡International Institute for Carbon-Neutral
Energy Research (WPI-I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Kihun Jeong
- Department
of Chemistry and Biochemistry, Graduate
School of Engineering, and ‡International Institute for Carbon-Neutral
Energy Research (WPI-I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Takahiro Matsumoto
- Department
of Chemistry and Biochemistry, Graduate
School of Engineering, and ‡International Institute for Carbon-Neutral
Energy Research (WPI-I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
| | - Seiji Ogo
- Department
of Chemistry and Biochemistry, Graduate
School of Engineering, and ‡International Institute for Carbon-Neutral
Energy Research (WPI-I2CNER), Kyushu University, 744 Moto-oka, Nishi-ku, Fukuoka 819-0395, Japan
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48
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Matsumoto T, Eguchi S, Nakai H, Hibino T, Yoon KS, Ogo S. Cover Picture: [NiFe]Hydrogenase from Citrobactersp. S-77 Surpasses Platinum as an Electrode for H 2Oxidation Reaction (Angew. Chem. Int. Ed. 34/2014). Angew Chem Int Ed Engl 2014. [DOI: 10.1002/anie.201405392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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49
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Matsumoto T, Eguchi S, Nakai H, Hibino T, Yoon KS, Ogo S. Titelbild: [NiFe]Hydrogenase from Citrobactersp. S-77 Surpasses Platinum as an Electrode for H 2Oxidation Reaction (Angew. Chem. 34/2014). Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201405392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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50
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Yatabe T, Kikunaga T, Matsumoto T, Nakai H, Yoon KS, Ogo S. Synthesis of Aqueous-stable and Water-soluble Mononuclear Nonheme Mn V–Oxo Complexes Using H 2O 2 as an Oxidant. CHEM LETT 2014. [DOI: 10.1246/cl.140376] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Takeshi Yatabe
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University
| | - Takahiro Kikunaga
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University
| | - Takahiro Matsumoto
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University
| | - Hidetaka Nakai
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University
| | - Ki-Seok Yoon
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University
| | - Seiji Ogo
- International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University
- Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST)
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