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Youssef K, Poidevin C, Vacher A, Fihey A, Le Gal Y, Roisnel T, Lorcy D. Radical and diradical states of bis(molybdenocene dithiolene) complexes. Dalton Trans 2024; 53:9763-9776. [PMID: 38780397 DOI: 10.1039/d4dt00694a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
The synthesis and characterization of two bis(dithiolene) proligands involving heteroatomic linkers such as 1,4-dithiine and dihydro-1,4-disiline between the two protected dithiolene moieties are described. Two bimetallic complexes involving these heteroatomic bridges between two redox active bis(cyclopentadienyl)molybdenum dithiolene moieties have been synthesized and characterized by electrochemistry, spectroelectrochemistry, and their properties rationalized with (TD-)DFT. Cyclic voltammetry experiments show sequential oxidation of the two redox centers with ΔE values between successive one-electron transfers varying according to the nature of the bridge. Depending on the nature of the heteroatomic bridge, the bis-oxidized complexes exhibit either a diradical character with both radicals essentially localized on the metallacycles, or a closed-shell dicationic state.
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Affiliation(s)
- Khalil Youssef
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France.
| | - Corentin Poidevin
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France.
| | - Antoine Vacher
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France.
| | - Arnaud Fihey
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France.
| | - Yann Le Gal
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France.
| | - Thierry Roisnel
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France.
| | - Dominique Lorcy
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France.
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2
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Ou YP, Zhang Q, Yang X, Cao N, Jiang P, Hua Liu S. Isomeric triarylamine-ferrocene mixed-valence systems: Syntheses, structural-(spectro)electrochemical analysis, and theoretical calculations. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2021.120603] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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3
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Izu H, Kondo M, Saga Y, Iwami H, Masaoka S. Rational Synthetic Strategy for Heterometallic Multinuclear Complexes. CHEM LETT 2020. [DOI: 10.1246/cl.190815] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Hitoshi Izu
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
- Department of Life and Coordination-Complex Melecular Science, Institute for Molecular Science, 5-1 Myodaiji, Okazaki, Aichi 444-8787, Japan
- SOKENDAI (The Graduate University for Advanced Studies), Shonan Village, Hayama, Kanagawa 240-0193, Japan
| | - Mio Kondo
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Yutaka Saga
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Hikaru Iwami
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
- Department of Life and Coordination-Complex Melecular Science, Institute for Molecular Science, 5-1 Myodaiji, Okazaki, Aichi 444-8787, Japan
- SOKENDAI (The Graduate University for Advanced Studies), Shonan Village, Hayama, Kanagawa 240-0193, Japan
| | - Shigeyuki Masaoka
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
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Hua C, DeGayner JA, Harris TD. Thiosemiquinoid Radical-Bridged Cr III2 Complexes with Strong Magnetic Exchange Coupling. Inorg Chem 2019; 58:7044-7053. [PMID: 31034214 DOI: 10.1021/acs.inorgchem.9b00674] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Semiquinoid radical bridging ligands are capable of mediating exceptionally strong magnetic coupling between spin centers, a requirement for the design of high-temperature magnetic materials. We demonstrate the ability of sulfur donors to provide much stronger coupling relative to their oxygen congeners in a series of dinuclear complexes. Employing a series of chalcogen donor-based bis(bidentate) benzoquinoid bridging ligands, the series of complexes [(TPyA)2Cr2(RL4-)]2+ (OLH4 = 1,2,4,5-tetrahydroxybenzene, OSLH4 = 1,2-dithio-4,5-dihydroxybenzene, SLH4 = 1,2,4,5-tetrathiobenzene, TPyA = tris(2-pyridylmethyl)amine) was synthesized. Variable-temperature dc magnetic susceptibility data reveal the presence of weak antiferromagnetic superexchange coupling between CrIII centers in these complexes, with exchange constants of J = -2.83(3) (OL4-), -2.28(5) (OSL4-), and -1.80(2) (SL4-) cm-1. Guided by cyclic voltammetry and spectroelectrochemical measurements, chemical one-electron oxidation of these complexes gives the radical-bridged species [(TPyA)2Cr2(RL3-•)]3+. Variable-temperature dc susceptibility measurements in these complexes reveal the presence of strong antiferromagnetic metal-semiquinoid radical coupling, with exchange constants of J = -352(10) (OL3-•), - 401(8) (OSL3-•), and -487(8) (SL3-•) cm-1. These results provide the first measurement of magnetic coupling between metal ions and a thiosemiquinoid radical, and they demonstrate the value of moving from O to S donors in radical-bridged metal ions in the design of magnetic molecules and materials.
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Affiliation(s)
- Carol Hua
- Department of Chemistry , Northwestern University , Evanston , Illinois 60208 , United States
| | - Jordan A DeGayner
- Department of Chemistry , Northwestern University , Evanston , Illinois 60208 , United States
| | - T David Harris
- Department of Chemistry , Northwestern University , Evanston , Illinois 60208 , United States
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Liu JJ, Lin YJ, Jin GX. A stepwise assembly of a molecular box from 16-electron half-sandwich precursors [Cp*M(pdt)] (M = Rh, Ir). Dalton Trans 2015; 44:10281-8. [DOI: 10.1039/c5dt01061f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The coordinatively unsaturated 16-electron half-sandwich precursors [Cp*M(pdt)] (M = Rh and Ir, pdt = pyrazine-2,3-dithiol) have been synthesized. Their bridging and unsaturated attributes are further used in stepwise assembly reactions with binuclear blocks to give a closed molecular box.
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Affiliation(s)
- Jing-Jing Liu
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Material
- Department of Chemistry
- Fudan University
- Shanghai
- P. R. China
| | - Yue-Jian Lin
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Material
- Department of Chemistry
- Fudan University
- Shanghai
- P. R. China
| | - Guo-Xin Jin
- Shanghai Key Laboratory of Molecular Catalysis and Innovative Material
- Department of Chemistry
- Fudan University
- Shanghai
- P. R. China
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Synthesis, characterization and luminescence properties of LnIII (Ln=Eu, Tb, Ce, Sm, Dy) complexes containing a terpyridine ligand and a 3d–4f type conjugated terpyridine-alkyne bridging EuIII–Co0 carbonyl cluster complex. Polyhedron 2014. [DOI: 10.1016/j.poly.2014.02.044] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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7
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Golovnev N, Molokeev M, Vereshchagin S, Atuchin V. Calcium and strontium thiobarbiturates with discrete and polymeric structures. J COORD CHEM 2013. [DOI: 10.1080/00958972.2013.860450] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- N.N. Golovnev
- Department of Chemistry, Siberian Federal University, Krasnoyarsk , Russia
| | - M.S. Molokeev
- Laboratory of Crystal Physics, Kirensky Institute of Physics, Krasnoyarsk, Russia
| | - S.N. Vereshchagin
- Laboratory of Catalytic Conversion of Small Molecules, Institute of Chemistry and Chemical Technology, Krasnoyarsk, Russia
| | - V.V. Atuchin
- Laboratory of Optical Materials and Structures, Institute of Semiconductor Physics, Novosibirsk, Russia
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Sakamoto R, Kambe T, Tsukada S, Takada K, Hoshiko K, Kitagawa Y, Okumura M, Nishihara H. π-Conjugated trinuclear group-9 metalladithiolenes with a triphenylene backbone. Inorg Chem 2013; 52:7411-6. [PMID: 23758171 DOI: 10.1021/ic400110z] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Previously, we synthesized π-conjugated trinuclear metalladithiolene complexes based on benzenehexathiol (J. Chem. Soc., Dalton Trans.1998, 2651; Dalton Trans.2009, 1939; Inorg. Chem.2011, 50, 6856). Here we report trinuclear complexes with a triphenylene backbone. A reaction with triphenylenehexathiol and group 9 metal precursors in the presence of triethylamine gives rise to trinuclear complexes 9-11. The planar structure of 11 is determined using single crystal X-ray diffraction analysis. The ligand-to-metal charge transfer bands of 9-11 move to longer wavelengths compared with those of mononuclear 12-14. Electrochemical measurements disclose that the one-electron and two-electron reduced mixed-valent states are stabilized thermodynamically. UV-vis-NIR spectroscopy for the reduced species of 9 identifies intervalence charge transfer bands for 9(-) and 9(2-), substantiating the existence of electronic communication among the three metal nuclei. These observations prove that the triphenylene backbone transmits π-conjugation among the three metalladithiolene units.
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Affiliation(s)
- Ryota Sakamoto
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1, Hongo, Tokyo 113-0033, Japan.
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9
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Zhang X, Tang X, Yang J, Li Y, Yan H, Bregadze VI. Boron-Substituted o-Carboranetrithiol To Construct Trimeric Cobalt Clusters. Organometallics 2013. [DOI: 10.1021/om400097m] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Xiaolei Zhang
- State Key Laboratory of Coordination
Chemistry, School of Chemistry
and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, People’s Republic of China
| | - Xiao Tang
- State Key Laboratory of Coordination
Chemistry, School of Chemistry
and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, People’s Republic of China
| | - Jiajia Yang
- State Key Laboratory of Coordination
Chemistry, School of Chemistry
and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, People’s Republic of China
| | - Yizhi Li
- State Key Laboratory of Coordination
Chemistry, School of Chemistry
and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, People’s Republic of China
| | - Hong Yan
- State Key Laboratory of Coordination
Chemistry, School of Chemistry
and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210093, People’s Republic of China
| | - Vladimir I. Bregadze
- A. N. Nesmeyanov Institute of Organoelement Compounds (INEOS), Russian Academy of Sciences, Moscow
119991, Russia
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Tsukada S, Sakamoto R, Nishihara H. Benzenedithiolate-bridged Rh2W and RhW Cluster Complexes: Synthesis, Properties, and Formation Mechanism. CHEM LETT 2012. [DOI: 10.1246/cl.2012.357] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Satoru Tsukada
- Department of Chemistry, Graduate School of Science, The University of Tokyo
| | - Ryota Sakamoto
- Department of Chemistry, Graduate School of Science, The University of Tokyo
| | - Hiroshi Nishihara
- Department of Chemistry, Graduate School of Science, The University of Tokyo
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11
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12
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Tsukada S, Shibata Y, Sakamoto R, Kambe T, Ozeki T, Nishihara H. Ir3Co6 and Co3Fe3 Dithiolene Cluster Complexes: Multiple Metal–Metal Bond Formation and Correlation between Structure and Internuclear Electronic Communication. Inorg Chem 2012; 51:1228-30. [DOI: 10.1021/ic202548g] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Satoru Tsukada
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Yusuke Shibata
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Ryota Sakamoto
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Tetsuya Kambe
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Tomoji Ozeki
- Department of Chemistry
and Materials Science, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8551,
Japan
| | - Hiroshi Nishihara
- 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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Sakamoto R, Tsukada S, Nishihara H. Multinuclear metalladithiolenes: focusing on electronic communication in mixed-valent states. Dalton Trans 2012; 41:10123-35. [DOI: 10.1039/c2dt30787a] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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14
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Nomura M, Fujita-Takayama C, Sugiyama T, Kajitani M. Diverse reactivities of aromaticity–unsaturation coexisted metalladithiolene rings. J Organomet Chem 2011. [DOI: 10.1016/j.jorganchem.2011.06.041] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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15
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Kambe T, Tsukada S, Sakamoto R, Nishihara H. Expanding Family of π-Conjugated Trinuclear Dithiolenes: The Cases of Group 8 (RuII) and 10 (NiIIand PtII) Metals. Inorg Chem 2011; 50:6856-8. [DOI: 10.1021/ic200766p] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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16
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Muratsugu S, Sodeyama K, Kitamura F, Tsukada S, Tada M, Tsuneyuki S, Nishihara H. Normal and inverted redox potentials and structural changes tuned by medium effects in [M2Mo(η5-C5Me5)2(S2C6H4)2(CO)2] (M: Co, Rh). Chem Sci 2011. [DOI: 10.1039/c1sc00272d] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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17
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Nomura M. Organometallic dithiolene complexes of the group 8–10 metals: Reactivities, structures and electrochemical behavior. Dalton Trans 2011; 40:2112-40. [DOI: 10.1039/c0dt01025a] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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18
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Nomura M, Kondo S, Yamashita S, Suzuki E, Toyota Y, Alea GV, Janairo GC, Fujita-Takayama C, Sugiyama T, Kajitani M. Sulfur-rich CpCo(dithiolene) complexes: Isostructural or non-isostructural couples of CpCo(III) with CpNi(III) dithiolene complexes. J Organomet Chem 2010. [DOI: 10.1016/j.jorganchem.2010.05.024] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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19
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Nomura M, Kanamori M, Tateno N, Fujita-Takayama C, Sugiyama T, Kajitani M. Two near-UV and visible chromophores of CpCo(Dithiolene) complexes with pyridinium-dicyanomethylide group. J Organomet Chem 2010. [DOI: 10.1016/j.jorganchem.2010.07.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Nomura M, Cauchy T, Fourmigué M. Radical CpNi(dithiolene) and CpNi(diselenolene) complexes: Synthetic routes and molecular properties. Coord Chem Rev 2010. [DOI: 10.1016/j.ccr.2009.11.010] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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