1
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Kobayashi F, Yoshida A, Gemba M, Takatsu Y, Tadokoro M. Solvent vapour-responsive structural transformations in molecular crystals composed of a luminescent mononuclear aluminium(III) complex. Dalton Trans 2024; 53:11689-11696. [PMID: 38847374 DOI: 10.1039/d4dt00747f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/17/2024]
Abstract
Investigations into the construction of functional molecular crystals and their external stimuli-induced structural transformations represent compelling research topics, particularly for the advancement of sensors and memory devices. However, reports on the development of molecular crystals constructed from discrete mononuclear complex units and exhibiting structural transformations via the adsorption/desorption of guest molecules are scarce. In this study, we synthesised three molecular crystals composed of [Al(sap)(acac)(H2O)]·(solvent) (H2sap = 2-salicylideneaminophenol, acac = acetylacetonate, solvent = Me2CO (Al·Me2CO), MeCN (Al·MeCN), or DMSO (Al·DMSO)), and demonstrated solvent vapour-responsive reversible crystal-to-crystal structural transformations in Al·Me2CO and Al·MeCN. For Al·DMSO, exposure to DMSO vapour led to the formation of DMSO-coordinated compound [Al(sap)(acac)(DMSO)], indicating an irreversible structural transformation. This solvent vapour-responsive system incorporates a luminescent mononuclear aluminium(III) complex (λmax = 539-552 nm, Φem = 0.07-0.27) as the molecular building unit for the porous-like framework. Therefore, we synthesised a new functional molecular material and a potential molecular building unit that facilitates guest fixation through hydrogen-bonding.
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Affiliation(s)
- Fumiya Kobayashi
- Department of Chemistry, Faculty of Science, Tokyo University of Science, 1-3, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Azuki Yoshida
- Department of Chemistry, Faculty of Science, Tokyo University of Science, 1-3, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Misato Gemba
- Department of Chemistry, Faculty of Science, Tokyo University of Science, 1-3, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Yuta Takatsu
- Department of Chemistry, Faculty of Science, Tokyo University of Science, 1-3, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
| | - Makoto Tadokoro
- Department of Chemistry, Faculty of Science, Tokyo University of Science, 1-3, Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
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2
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Moriyama H, Otsubo K, Sugimoto K, Kawaguchi S, Kitagawa H. Observation of an Alternate Charge-Polarization State in a One-Dimensional Pt-Pt-I Chain Compound with a Bulky Pendant Ligand. Angew Chem Int Ed Engl 2022; 61:e202214108. [PMID: 36305378 DOI: 10.1002/anie.202214108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Indexed: 11/07/2022]
Abstract
A one-dimensional (1D) halogen-bridged dinuclear-metal complex (MMX-chain) exhibits various electronic states based on a mixed-valence metal-dimer system. This report deals with the synthesis and physical properties of a new MMX-chain with a bulky pendant ligand, Pt2 (mcc-HexCS2 )4 I (mcc-HexCS2 =trans-4-(methoxycarbonyl)cyclohexanedithiocarboxylate). The steric hindrance caused by the bulky substituent induces a strain in its 1D chain, achieving at ambient condition the first pure alternate charge-polarization (ACP) state (-Pt2+ -Pt3+ -I- -Pt3+ -Pt2+ -I- -), a kind of spin-Peierls state, as confirmed by X-ray diffraction and its conducting and magnetic properties. The strain effect is also manifested as a very large linear thermal expansion along the chain direction, which is quite different from conventional MMX-chains without a bulky ligand. The design of low-dimensional materials with ligand variations is expected to lead to the emergence of new electron-lattice coupled electronic states.
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Affiliation(s)
- Hayato Moriyama
- Division of Chemistry, Graduate School of Science, Kyoto University Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Kazuya Otsubo
- Division of Chemistry, Graduate School of Science, Kyoto University Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto, 606-8502, Japan
| | - Kunihisa Sugimoto
- Japan Synchrotron Radiation Research Institute (JASRI), SPring-8, 1-1-1 Kouto, Sayo-cho, 679-5198, Sayo-gun, Hyogo, Japan
| | - Shogo Kawaguchi
- Japan Synchrotron Radiation Research Institute (JASRI), SPring-8, 1-1-1 Kouto, Sayo-cho, 679-5198, Sayo-gun, Hyogo, Japan
| | - Hiroshi Kitagawa
- Division of Chemistry, Graduate School of Science, Kyoto University Kitashirakawa-Oiwakecho, Sakyo-ku, Kyoto, 606-8502, Japan
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3
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Nagai Y, Morikawa MA, Kimizuka N. Near-infrared vapochromism in lipid-packaged mixed-valence coordination polymers. Chem Commun (Camb) 2022; 58:2112-2115. [PMID: 35037931 DOI: 10.1039/d1cc06723k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Reversible vapochromism in the NIR region is achieved for a mixed-valence platinum complex with lipid counterions, from which exclusion of crystallization water by organic vapor alters the lipid molecular orientation, which amplifies the information to changes in the 1D coordination structure and the electronic state.
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Affiliation(s)
- Yuki Nagai
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka Nishi-ku, Fukuoka 819-0395, Japan.
| | - Masa-Aki Morikawa
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka Nishi-ku, Fukuoka 819-0395, Japan. .,Center for Molecular Systems (CMS), Kyushu University, 744 Moto-oka Nishi-ku, Fukuoka 819-0395, Japan
| | - Nobuo Kimizuka
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, 744 Moto-oka Nishi-ku, Fukuoka 819-0395, Japan. .,Center for Molecular Systems (CMS), Kyushu University, 744 Moto-oka Nishi-ku, Fukuoka 819-0395, Japan
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4
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Otsubo K, Nagayama S, Kawaguchi S, Sugimoto K, Kitagawa H. A Preinstalled Protic Cation as a Switch for Superprotonic Conduction in a Metal-Organic Framework. JACS AU 2022; 2:109-115. [PMID: 35098227 PMCID: PMC8790730 DOI: 10.1021/jacsau.1c00388] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Indexed: 06/14/2023]
Abstract
Metal-organic frameworks (MOFs), made from various metal nodes and organic linkers, provide diverse research platforms for proton conduction. Here, we report on the superprotonic conduction of a Pt dimer based MOF, [Pt2(MPC)4Cl2Co(DMA)(HDMA)·guest] (H2MPC, 6-mercaptopyridine-3-carboxylic acid; DMA, dimethylamine). In this framework, a protic dimethylammonium cation (HDMA+) is trapped inside a pore through hydrogen bonding with an MPC ligand. Proton conductivity and X-ray measurements revealed that trapped HDMA+ works as a preinstalled switch, where HDMA+ changes its relative position and forms an effective proton-conducting pathway upon hydration, resulting in more than 105 times higher proton conductivity in comparison to that of the dehydrated form. Moreover, the anisotropy of single-crystal proton conductivity reveals the proton-conducting direction within the crystal. The present results offer insights into functional materials having a strong coupling of molecular dynamic motion and transport properties.
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Affiliation(s)
- Kazuya Otsubo
- Division
of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho,
Sakyo-ku, Kyoto 606-8502, Japan
| | - Shuya Nagayama
- Division
of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho,
Sakyo-ku, Kyoto 606-8502, Japan
| | - Shogo Kawaguchi
- Japan
Synchrotron Radiation Research Institute (JASRI), SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
| | - Kunihisa Sugimoto
- Japan
Synchrotron Radiation Research Institute (JASRI), SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
| | - Hiroshi Kitagawa
- Division
of Chemistry, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho,
Sakyo-ku, Kyoto 606-8502, Japan
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5
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Tanabe T, Sato T, Fuku K, Uchida K, Yamauchi T, Takaishi S, Iguchi H. Bluish Hydrochromic Naphthalenediimide Salt: Change of Hydrogen-bond Interactions as the New Mechanism of Vapochromism. CHEM LETT 2021. [DOI: 10.1246/cl.210275] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Tappei Tanabe
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza-Aoba, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Tetsu Sato
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza-Aoba, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Kentaro Fuku
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza-Aoba, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Kaiji Uchida
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza-Aoba, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Tamon Yamauchi
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza-Aoba, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Shinya Takaishi
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza-Aoba, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Hiroaki Iguchi
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza-Aoba, Aoba-ku, Sendai, Miyagi 980-8578, Japan
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6
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Yamashita M. Next Generation Multifunctional Nano-Science of Advanced Metal Complexes with Quantum Effect and Nonlinearity. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20200257] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Masahiro Yamashita
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza-Aoba, Aoba-ku, Sendai, Miyagi 980-8578, Japan
- School of Materials Science and Engineering, Nankai University, Tianjin 300350, P. R. China
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7
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Kobayashi F, Akiyoshi R, Kosumi D, Nakamura M, Lindoy LF, Hayami S. Solvent vapor-induced polarity and ferroelectricity switching. Chem Commun (Camb) 2020; 56:10509-10512. [PMID: 32776059 DOI: 10.1039/d0cc04497k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Vapor-induced crystal to crystal transformation between non-polar [Fe(sap)(acac)(sol)] (H2sap = 2-salicylideneaminophenol, acac = acethylacetate, sol = MeOH, pyridine) and polar [Fe(sap)(acac)(DMSO)] was demonstrated. It provides an example of switchable ferroelectric behaviour attributted to the structural phase transition triggered by solvent vapour.
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Affiliation(s)
- Fumiya Kobayashi
- Department of Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan
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8
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Qu L, Iguchi H, Takaishi S, Habib F, Leong CF, D'Alessandro DM, Yoshida T, Abe H, Nishibori E, Yamashita M. Porous Molecular Conductor: Electrochemical Fabrication of Through-Space Conduction Pathways among Linear Coordination Polymers. J Am Chem Soc 2019; 141:6802-6806. [PMID: 30998332 DOI: 10.1021/jacs.9b01717] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The first porous molecular conductor (PMC), which exhibits porosity, a through-space conduction pathway and rich charge carriers (electrons), was prepared through electrocrystallization from Cd2+ and N, N'-di(4-pyridyl)-1,4,5,8-naphthalenetetracarboxdiimide (NDI-py). [Cd(NDI-py)(OH2)4](NO3)1.3±0.1· nDMA (PMC-1) was assembled by π-π stacking among one-dimensional (1D) linear coordination polymers. The NDI cores were partially reduced into radical anions to form conductive π-stacked columns, yielding (1.0-3.3) × 10-3 S cm-1 at room temperature. Moreover, the electrical conductivity was significantly enhanced by removing the solvent molecules from PMC-1, indicating that PMCs are promising as molecule-responsive conductive materials.
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Affiliation(s)
- Liyuan Qu
- Department of Chemistry, Graduate School of Science , Tohoku University , 6-3 Aza-Aoba, Aramaki , Sendai 980-8578 , Japan
| | - Hiroaki Iguchi
- Department of Chemistry, Graduate School of Science , Tohoku University , 6-3 Aza-Aoba, Aramaki , Sendai 980-8578 , Japan
| | - Shinya Takaishi
- Department of Chemistry, Graduate School of Science , Tohoku University , 6-3 Aza-Aoba, Aramaki , Sendai 980-8578 , Japan
| | - Faiza Habib
- Department of Chemistry, Graduate School of Science , Tohoku University , 6-3 Aza-Aoba, Aramaki , Sendai 980-8578 , Japan
| | - Chanel F Leong
- School of Chemistry , The University of Sydney , Sydney , New South Wales 2006 , Australia
| | - Deanna M D'Alessandro
- School of Chemistry , The University of Sydney , Sydney , New South Wales 2006 , Australia
| | - Takefumi Yoshida
- Electronic Functional Macromolecules Group, National Institute for Materials Science (NIMS) , 1-1 Namiki , Tsukuba , Ibaraki 305-0044 , Japan
| | - Hitoshi Abe
- Institute of Materials Structure Science High Energy Accelerator Research Organization (KEK) , 1-1 Oho , Tsukuba , Ibaraki 305-0801 , Japan.,Department of Materials Structure Science, School of High Energy Accelerator Science , SOKENDAI (the Graduate University for Advanced Studies) , 1-1 Oho , Tsukuba , Ibaraki 305-0801 , Japan
| | - Eiji Nishibori
- Division of Physics, Faculty of Pure and Applied Sciences & Tsukuba Research Center for Energy Materials Science (TREMS) , University of Tsukuba , Tsukuba , Ibaraki 305-8571 , Japan
| | - Masahiro Yamashita
- Department of Chemistry, Graduate School of Science , Tohoku University , 6-3 Aza-Aoba, Aramaki , Sendai 980-8578 , Japan.,Advanced Institute for Materials Research, Tohoku University , 2-1-1 Katahira, Aoba-ku , Sendai 980-8577 , Japan.,School of Materials Science and Engineering , Nankai University , Tianjin 300350 , China
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9
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Liu JJ, Guan YF, Li L, Chen Y, Dai WX, Huang CC, Lin MJ. Construction of a bicontinuous donor-acceptor hybrid material at the molecular level by inserting inorganic nanowires into porous MOFs. Chem Commun (Camb) 2018; 53:4481-4484. [PMID: 28382344 DOI: 10.1039/c7cc00495h] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Herein, we report an unprecedented hybrid structure of electron-rich iodoplumbate nanowires precisely inserted into the periodic pores of electron-deficient pyridinium metal-organic frameworks (MOFs). To the best of our knowledge, this is the first example of semiconductive MOFs in situ loaded with inorganic semiconductive nanowires via a simple self-assembly method. Due to the dissimilar semiconductivities between the host and guest components, this hybrid also represents the first bicontinuous donor-acceptor hybrid at the molecular level based on host-guest interactions.
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Affiliation(s)
- Jian-Jun Liu
- College of Chemistry, Fuzhou University, 350116, China.
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10
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Otsubo K, Suto T, Kobayashi A, Ikeda R, Hedo M, Uwatoko Y, Kitagawa H. Conducting Behavior and Valence Ordering of a One-Dimensional MMX-Type Coordination Polymer under High Pressure. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201600499] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Kazuya Otsubo
- Division of Chemistry; Graduate School of Science; Kyoto University; Kitashirakawa-Oiwakecho, Sakyo-ku 606-8502 Kyoto Japan
| | - Tomohiko Suto
- Department of Chemistry; Graduate School of Pure and Applied Sciences; University of Tsukuba; 1-1-1 Tennodai 305-8577 Tsukuba Japan
| | - Atsushi Kobayashi
- Division of Chemistry; Faculty of Science; Hokkaido University; Kita-10, Nishi-8, Kita-ku 060-0810 Sapporo Japan
| | - Ryuichi Ikeda
- Department of Chemistry; Graduate School of Pure and Applied Sciences; University of Tsukuba; 1-1-1 Tennodai 305-8577 Tsukuba Japan
| | - Masato Hedo
- Department of Physics and Earth Sciences; Faculty of Science; University of the Ryukyus; Senbaru 1, Nishihara-cho, Nakagami-gun 903-0213 Okinawa Japan
| | - Yoshiya Uwatoko
- Institute for Solid State Physics; The University of Tokyo; Kashiwanoha 5-1-5, Kashiwa 277-8581 Chiba Japan
| | - Hiroshi Kitagawa
- Division of Chemistry; Graduate School of Science; Kyoto University; Kitashirakawa-Oiwakecho, Sakyo-ku 606-8502 Kyoto Japan
- Institute for Integrated Cell-Material Sciences (iCeMS); Kyoto University; Yoshida, Sakyo-ku 606-8501 Kyoto Japan
- INAMORI Frontier Research Center; Kyushu University; 744 Motooka, Nishi-ku 819-3095 Fukuoka Japan
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11
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Tominaka S, Coudert FX, Dao TD, Nagao T, Cheetham AK. Insulator-to-Proton-Conductor Transition in a Dense Metal–Organic Framework. J Am Chem Soc 2015; 137:6428-31. [DOI: 10.1021/jacs.5b02777] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Satoshi Tominaka
- Department
of Materials Science and Metallurgy, University of Cambridge, Cambridge CB3 0FS, United Kingdom
- International
Center for Materials Nanoarchitectonics, National Institute for Materials Science, Ibaraki 305-0044, Japan
| | - François-Xavier Coudert
- PSL Research University, Chimie ParisTech−CNRS, Institut de Recherche de Chimie Paris, 75005 Paris, France
| | - Thang D. Dao
- International
Center for Materials Nanoarchitectonics, National Institute for Materials Science, Ibaraki 305-0044, Japan
| | - Tadaaki Nagao
- International
Center for Materials Nanoarchitectonics, National Institute for Materials Science, Ibaraki 305-0044, Japan
| | - Anthony K. Cheetham
- Department
of Materials Science and Metallurgy, University of Cambridge, Cambridge CB3 0FS, United Kingdom
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12
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Iguchi H, Kitao S, Seto M, Takaishi S, Yamashita M. Predominance of covalency in water-vapor-responsive MMX-type chain complexes revealed by (129)I Mössbauer spectroscopy. Dalton Trans 2014; 43:8767-73. [PMID: 24777234 DOI: 10.1039/c4dt00627e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
(129)I Mössbauer spectroscopy was applied to water-vapor-responsive MMX-type quasi-one-dimensional iodide-bridged Pt complexes (MMX chains) in order to investigate their electronic state quantitatively. Two sets of octuplets observed in K2(H3NC3H6NH3)[Pt2(pop)4I]·4H2O (2·4H2O) and one octuplet observed in K2(cis-H3NCH2CH=CHCH2NH3)[Pt2(pop)4I]·4H2O (1·4H2O) and dehydrated complexes (1 and 2) indicate a unique alternating charge-polarization + charge-density-wave (ACP + CDW) electronic state and a charge-density-wave (CDW) electronic state, respectively. These spectra correspond to their crystal structure and the change of electronic states upon dehydration. Since these complexes consist of an alternating array of positively charged and negatively charged layers, the charge on the iodide ion (ρIS) was discussed on the basis of the isomer shift (IS). The ρIS of the water-vapor-responsive MMX chains was mainly -0.13 to -0.21, which are the smallest of all MMX chains reported so far. Hence, it indicates that the negative charge on the iodide ion is strongly donated to the Pt ion in these complexes. This covalent interaction predominates in the ACP + CDW state as well as in the CDW state. Therefore, the ACP + CDW state is in fact the CDW state with the ACP-type lattice distortion. Because the ρIS became smaller with the decreasing Pt-I-Pt distance, it can be concluded that the covalent interaction plays an important role in determining the electronic states of the MMX chains with pop (= P2H2O5(2-)) ligands.
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Affiliation(s)
- Hiroaki Iguchi
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aramaki-Aza-Aoba, Aoba-ku, Sendai, 980-8578, Japan.
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13
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Miyake R, Shionoya M. Concerted Ligand Exchange and the Roles of Counter Anions in the Reversible Structural Switching of Crystalline Peptide Metallo-Macrocycles. Inorg Chem 2014; 53:5717-23. [DOI: 10.1021/ic500478p] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Ryosuke Miyake
- Department
of Chemistry and Biochemistry, Graduate School of Humanities and Sciences, Ochanomizu University, 2-1-1 Otsuka, Bunkyo-ku,
Tokyo 112-8610, Japan
| | - Mitsuhiko Shionoya
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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14
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Iguchi H, Nafady A, Takaishi S, Yamashita M, Bond AM. Solid-state electrochemistry of a semiconducting MMX-type diplatinum iodide chain complex. Inorg Chem 2014; 53:4022-8. [PMID: 24679160 DOI: 10.1021/ic402980t] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Electron-transfer-facilitated dissolution, ion insertion, and desorption associated with an MMX-type quasi-one-dimensional iodide-bridged dinuclear Pt complex (MMX chain) have been investigated for the first time. K2(NC3N)[Pt2(pop)4I]·4H2O (1) (NC3N(2+) = (H3NC3H6NH3)(2+); pop = P2H2O5(2-)) is a semiconductor with a three-dimensional coordination-bond and hydrogen-bond network included in the chain. The cyclic voltammetry of 1 was studied by using 1-modified electrodes in contact with acetonitrile solutions containing electrolyte. The chemical reversibility for oxidation of 1 depended on the electrolyte cation size, with large cations such as tetrabutylammonium (Bu4N(+)) being too large to penetrate the pores formed by the loss of K(+) and NC3N(2+) upon oxidation. The potential for reduction of 1 decreased as the cation size increased. The presence of the acid induced additional well-defined processes but with gradual solid dissolution, attributed to the breaking of the coordination-bond networks.
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Affiliation(s)
- Hiroaki Iguchi
- Department of Chemistry, Graduate School of Science, Tohoku University , 6-3 Aramaki-Aza-Aoba, Sendai 980-8578, Japan
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15
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Iguchi H, Takaishi S, Yamashita M. Recent Progress in MMX-Chain Complexes: Unique Electronic States and Characteristics Developed by Introducing Binary Countercations. CHEM LETT 2014. [DOI: 10.1246/cl.130961] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Hiroaki Iguchi
- Department of Chemistry, Graduate School of Science, Tohoku University
- Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST)
| | - Shinya Takaishi
- Department of Chemistry, Graduate School of Science, Tohoku University
- Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST)
| | - Masahiro Yamashita
- Department of Chemistry, Graduate School of Science, Tohoku University
- Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST)
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16
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Iguchi H, Takaishi S, Jiang D, Xie J, Yamashita M, Uchida A, Kawaji H. Negative Differential Resistance in MX- and MMX-Type Iodide-Bridged Platinum Complexes. Inorg Chem 2013; 52:13812-4. [DOI: 10.1021/ic402277x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hiroaki Iguchi
- Department
of Chemistry, Graduate School of Science, Tohoku University, 6-3
Aza-aoba, Aramaki, Sendai 980-8578, Japan
- Core Research for
Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST), 4-1-8 Kawaguchi, Saitama 332-0012, Japan
| | - Shinya Takaishi
- Department
of Chemistry, Graduate School of Science, Tohoku University, 6-3
Aza-aoba, Aramaki, Sendai 980-8578, Japan
- Core Research for
Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST), 4-1-8 Kawaguchi, Saitama 332-0012, Japan
| | - Deli Jiang
- School
of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Jimin Xie
- School
of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Masahiro Yamashita
- Department
of Chemistry, Graduate School of Science, Tohoku University, 6-3
Aza-aoba, Aramaki, Sendai 980-8578, Japan
- Core Research for
Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST), 4-1-8 Kawaguchi, Saitama 332-0012, Japan
| | - Atsuko Uchida
- Materials and Structures
Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8503, Japan
| | - Hitoshi Kawaji
- Materials and Structures
Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta-cho, Midori-ku, Yokohama 226-8503, Japan
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Kosaka W, Yamamoto N, Miyasaka H. Axial-site modifications of paddlewheel diruthenium(II, II) complexes supported by hydrogen bonding. Inorg Chem 2013; 52:9908-14. [PMID: 23961699 DOI: 10.1021/ic401030r] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The reactions of paddlewheel-type diruthenium(II, II) complexes, [Ru2(II,II)(x-FPhCO2)4(THF)2] (x-FPhCO2(-) = x-fluorobenzoate with x- = o-, m-, p-), with 2,6-diaminopyridine (dapy) and 7-azaindole (azain) afford axially capped discrete compounds, [Ru2(II,II)(x-FPhCO2)4(dapy)2] (x = o-, 1; m-, 2; p-, 3) and [Ru2(II,II)(o-FPhCO2)4(azain)2] (4), respectively. In these compounds, intramolecular hydrogen bonds are observed between NH2 groups for 1-3 or imine NH groups for 4 and oxygen atoms of carboxylate groups. In addition, hydrogen bonds of NH2···F are also observed for 1 and 4 with an o-positioned F atom on benzoate. This coordination mode, i.e., a dual bonding mode with σ-bonding and hydrogen bonding, should assist ligand coordination to the axial position of the [Ru2] unit. The Ru-N bond distance in 1-4 is shorter than that observed in related compounds reported previously. In a similar fashion, reactions with planar M(II) dithiobiuret (dtb) complexes, [M(II)(dtb)2] (M(II) = Pd(II) and Pt(II)), were carried out. One-dimensional alternating chains, [{Ru2(II,II)(o-FPhCO2)4}{M(II)(dtb)2}] (M(II) = Pd(II), 5; Pt(II), 6), were obtained, in which the hydrogen-bonding modes of NH2···O and NH2···F are present, as expected. DFT calculations for the [M(II)(dtb)2] unit revealed that the LUMO of [M(II)(dtb)2] lies at -2.159 and -1.781 eV for M = Pd and Pt, respectively, which is much higher than HOMO energy at -4.184 eV calculated for [Ru2(II,II)(o-FPhCO2)(THF)2], proving that the respective units are essentially electronically isolated in the chains.
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Affiliation(s)
- Wataru Kosaka
- Department of Chemistry, Division of Material Sciences, Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
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Iguchi H, Takaishi S, Breedlove BK, Yamashita M, Matsuzaki H, Okamoto H. Controlling the electronic states and physical properties of MMX-type diplatinum-iodide chain complexes via binary countercations. Inorg Chem 2012; 51:9967-77. [PMID: 22946488 DOI: 10.1021/ic301469u] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
MMX-type quasi-one-dimensional iodide-bridged dinuclear Pt complexes (MMX chains) with binary countercations show a new alternating charge-polarization + charge-density-wave (ACP+CDW) electronic state and reversible switching of the electronic states and physical properties upon dehydration and rehydration process. By comparing several MMX chains with various binary countercations with previous chains, we found that the short backbone of the aliphatic diammonium ion was indispensable for realizing the ACP+CDW state because it induces a 2-fold periodicity along the chain axis via twisting of the ligands. Moreover, the reversibility of the changes in the structure and electrical conductivity upon dehydration and rehydration depend on the length of aliphatic diammonium ion. Short diammonium ions support a robust framework, which undergoes reversible structural changes. On the other hand, long and bent aliphatic diammonium ions weaken the framework, which causes partial degradation of the crystal and a decrease in the electrical conductivity when the structure changes. However, the decrease in the activation energy of the electrical conductivity after the dehydration process is independent of the robustness of the complex, indicating that the orbital overlap in MMX chains with binary countercations increases upon dehydration. Controllable electronic states and physical properties provide a platform for designing the multifunctional materials based on MMX chains.
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Affiliation(s)
- Hiroaki Iguchi
- Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Aza-aoba, Aramaki, Sendai 980-8578, Japan.
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Novel Countercation in MMX-Type Mixed-Valence Chain Compound: Coexistence of Neutral and Protonated Amino Substituents. Polymers (Basel) 2011. [DOI: 10.3390/polym3041652] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Zhang T, Ji C, Wang K, Fortin D, Harvey PD. First Halogen Anion-Bridged (MMX)n-Type One-Dimensional Coordination Polymer Built upon d10−d10 Dimers. Inorg Chem 2010; 49:11069-76. [DOI: 10.1021/ic101619y] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tianle Zhang
- College of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, People's Republic of China
| | - Changpeng Ji
- College of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, People's Republic of China
| | - Kaili Wang
- College of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, Hubei 430074, People's Republic of China
| | - Daniel Fortin
- Département de Chimie, Université de Sherbrooke, Sherbrooke, Quebec J1K, 2R1, Canada
| | - Pierre D. Harvey
- Département de Chimie, Université de Sherbrooke, Sherbrooke, Quebec J1K, 2R1, Canada
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