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Hachem H, Cui H, Kato R, Alemany P, Canadell E, Jeannin O, Fourmigué M, Lorcy D. Mixed-Valence Conductors from Ni Bis(diselenolene) Complexes with a Thiazoline Backbone. Inorg Chem 2023; 62:4197-4209. [PMID: 36827469 DOI: 10.1021/acs.inorgchem.2c04300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
Abstract
Highly conducting, mixed-valence, multi-component nickel bis(diselenolene) salts were obtained by electrocrystallization of the monoanionic species [Ni(Me-thiazds)2]-1 (Me-thiazds: N-methyl-1,3-thiazoline-2-thione-4,5-diselenolate), with 1:2 and 1:3 stoichiometries depending of the counter ion used (Et4N+ and nBu4N+ vs Ph4P+, respectively). This behavior strongly differs from that of the corresponding monoanionic dithiolene complexes whose oxidation afforded the single component neutral species. This provides additional rare examples of mixed-valence conducting salts of nickel diselenolene complexes, only known in two examples with the dsit (1,3-dithiole-2-thione-4,5-diselenolate) and dsise (1,3-dithiole-2-selone-4,5-diselenolate) ligands. The mixed-valence salts form highly dimerized or trimerized bi- and trimetallic units, rarely seen with such nickel complexes. Transport measurements under a high pressure (up to 10 GPa) and band structure calculations confirm the semiconducting character of [Ph4P][Ni(Me-thiazds)2]3 and the quasi metallic character of [Et4N][Ni(Me-thiazds)2]2 and [NBu4]x[Ni(Me-thiazds)2]2 salts (0 < x < 1).
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Affiliation(s)
- Hadi Hachem
- Institut des Sciences Chimiques de Rennes, Université de Rennes, CNRS, UMR 6226, F-35000 Rennes, France
| | - HengBo Cui
- Condensed Molecular Materials Laboratory, RIKEN, Wako-shi, Saitama 351-0198, Japan
| | - Reizo Kato
- Condensed Molecular Materials Laboratory, RIKEN, Wako-shi, Saitama 351-0198, Japan
| | - Pere Alemany
- Departament de Ciència de Materials i Quimica Fisica and Institut de Quimica Teorica i Computacional (IQTCUB), Universitat de Barcelona, Marti i Franquès 1, E-08028 Barcelona, Spain
| | - Enric Canadell
- Institut de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus de la UAB, 08193 Bellaterra, Spain
| | - Olivier Jeannin
- Institut des Sciences Chimiques de Rennes, Université de Rennes, CNRS, UMR 6226, F-35000 Rennes, France
| | - Marc Fourmigué
- Institut des Sciences Chimiques de Rennes, Université de Rennes, CNRS, UMR 6226, F-35000 Rennes, France
| | - Dominique Lorcy
- Institut des Sciences Chimiques de Rennes, Université de Rennes, CNRS, UMR 6226, F-35000 Rennes, France
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2
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Benjamin H, Müller ML, Afanasjevs S, Kamenev KV, Robertson N. Electrochemical deposition of a semiconducting gold dithiolene complex with NIR absorption. Dalton Trans 2020; 49:13786-13796. [PMID: 33000835 DOI: 10.1039/d0dt02174a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Here, the synthesis of a new anionic gold dithiolene complex, NBu4·[1-i], and that of its corresponding neutral gold complex 2 is reported. Complex 2 shows strong absorption into the IR, semiconductivity (σRT = 3.06 × 10-7 S cm-1) with an activation energy of 0.25 eV, and weakly temperature dependent paramagnetic susceptibility, indicating strong intermolecular interactions in the solid state. As a consequence of their strong intermolecular interactions, neutral gold dithiolene complexes are often highly insoluble, limiting their utility and processability. Electrochemical deposition is used to deposit conductive films of complex 2, which retain the NIR properties present in the bulk material, indicting that the strong intermolecular interactions are retained in the film.
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Affiliation(s)
- Helen Benjamin
- EaStCHEM School of Chemistry, University of Edinburgh, Edinburgh, UK.
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3
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Bechu D, Petre AM, Hosseini MW, Baudron SA. Heterometallic coordination polymers based on homo- and heteroleptic Au( iii) dithiolene complexes. CrystEngComm 2020. [DOI: 10.1039/d0ce01090a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two novel hetero- and homoleptic Au(iii) dithiolene complexes have been designed, synthesized, characterized and employed for the elaboration of heterometallic coordination networks.
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Affiliation(s)
- Damien Bechu
- Université de Strasbourg
- CNRS
- CMC UMR 7140
- Strasbourg
- France
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4
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McGuire J, Miras HN, Richards E, Sproules S. Enabling single qubit addressability in a molecular semiconductor comprising gold-supported organic radicals. Chem Sci 2019; 10:1483-1491. [PMID: 30809365 PMCID: PMC6354843 DOI: 10.1039/c8sc04500c] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Accepted: 11/21/2018] [Indexed: 01/24/2023] Open
Abstract
A bis(dithiolene)gold complex is presented as a model for an organic molecular electron spin qubit attached to a metallic surface that acts as a conduit to electrically address the qubit. A two-membered electron transfer series is developed of the formula [AuIII(adt)2]1-/0, where adt is a redox-active dithiolene ligand that is sequentially oxidized as the series is traversed while the central metal ion remains AuIII and steadfastly square planar. One-electron oxidation of diamagnetic [AuIII(adt)2]1- (1) produces an S = 1/2 charge-neutral complex, [AuIII(adt2 3-˙)] (2) which is spectroscopically and theoretically characterized with a near negligible Au contribution to the ground state. A phase memory time (T M) of 21 μs is recorded in 4 : 1 CS2/CCl4 at 10 K, which is the longest ever reported for a coordination complex possessing a third-row transition metal ion. With increasing temperature, T M dramatically decreases becoming unmeasurable above 80 K as a consequence of the diminishing spin-lattice (T 1) relaxation time fueled by spin-orbit coupling. These relaxation times are 1-2 orders of magnitude shorter for the solid dilution of 2 in isoelectronic [Ni(adt)2] because this material is a molecular semiconductor. Although the conducting properties of this material provide efficient pathways to dissipate the energy through the lattice, it can also be used to electrically address the paramagnetic dopant by tapping into the mild reduction potential to switch magnetism "on" and "off" in the gold complex without compromising the integrity of its structure. These results serve to highlight the need to consider all components of these spintronic assemblies.
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Affiliation(s)
- Jake McGuire
- WestCHEM School of Chemistry , University of Glasgow , Glasgow , G12 8QQ , UK .
| | - Haralampos N Miras
- WestCHEM School of Chemistry , University of Glasgow , Glasgow , G12 8QQ , UK .
| | - Emma Richards
- School of Chemistry , Cardiff University , Main Building, Park Place , Cardiff , CF10 3AT , UK
| | - Stephen Sproules
- WestCHEM School of Chemistry , University of Glasgow , Glasgow , G12 8QQ , UK .
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5
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Hachem H, Xu Z, Bellec N, Jeannin O, Auban-Senzier P, Guizouarn T, Fourmigué M, Lorcy D. Neutral, closed-shell nickel bis(2-alkylthio-thiazole-4,5-dithiolate) complexes as single component molecular conductors. Dalton Trans 2018; 47:6580-6589. [PMID: 29697125 DOI: 10.1039/c8dt00818c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Neutral nickel bis(dithiolene) complexes, because of their closed-shell character, are usually considered as insulating materials, unless they are formed out of highly delocalized tetrathiafulvalenedithiolate ligands. We describe here an original series of S-alkyl substituted neutral bis(thiazole-4,5-dithiolate) nickel complexes formulated as [Ni(RS-tzdt)2] (R = Me, Et), which organize in the solid state into uniform stacks and exhibit semiconducting behavior, with room temperature conductivities comparable to those reported in the prototypical [Ni(dmit)2] and [Ni(Et-thiazdt)2] neutral complexes. These findings provide new perspectives in the current search for single component molecular conductors.
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Affiliation(s)
- Hadi Hachem
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France.
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6
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Conformational behavior, redox and spectroscopic properties of gold dithiolene complexes: [Au(iPr-thiazYdt)2]−1 (Y = O, S, Se). Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2017.09.050] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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7
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Yu Q, Ge JY, Lv ZP, Wang HY, Zuo JL. Structure-dependent electronic transition in a new type of π-electron delocalized multi-sulfur bis(dithiolene)nickel complex. RSC Adv 2016. [DOI: 10.1039/c6ra20109a] [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] Open
Abstract
Four new nickel bis(dithiolene) complexes were synthesized and characterized. The UV-vis-NIR spectra and DFT calculations indicate that their HOMO and LUMO energy levels are highly depended on the donating/withdrawing abilities of their substituents.
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Affiliation(s)
- Qin Yu
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Collaborative Innovation Center of Advanced Microstructures
- Nanjing University
- Nanjing 210023
| | - Jing-Yuan Ge
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Collaborative Innovation Center of Advanced Microstructures
- Nanjing University
- Nanjing 210023
| | - Zhong-Peng Lv
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Collaborative Innovation Center of Advanced Microstructures
- Nanjing University
- Nanjing 210023
| | - Hai-Ying Wang
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Collaborative Innovation Center of Advanced Microstructures
- Nanjing University
- Nanjing 210023
| | - Jing-Lin Zuo
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Collaborative Innovation Center of Advanced Microstructures
- Nanjing University
- Nanjing 210023
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8
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Filatre-Furcate A, Auban-Senzier P, Fourmigué M, Roisnel T, Dorcet V, Lorcy D. Gold dithiolene complexes: easy access to 2-alkylthio-thiazoledithiolate complexes. Dalton Trans 2015; 44:15683-9. [PMID: 26252248 DOI: 10.1039/c5dt02534f] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In the presence of MeI or EtI, N-tert-butyl-1,3-thiazoline-2-thione derivatives undergo a transformation to 2-alkylthio-thiazoledithiolate pro-ligands with elimination of the tert-butyl substituent. The corresponding Au(III) dithiolene complexes [Au(RS-tzdt)2](-) (R = Me, Et) oxidize readily to the neutral radical species, such as the semi-conducting [Au(EtS-tzdt)2]˙, which organizes into dimers in the solid state.
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Affiliation(s)
- Agathe Filatre-Furcate
- Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS-Université de Rennes 1, Campus de Beaulieu, Bât 10A, 35042 Rennes cedex, France.
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9
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Faust TB, Usov PM, D'Alessandro DM, Kepert CJ. Highly unusual interpenetration isomers of electroactive nickel bis(dithiolene) coordination frameworks. Chem Commun (Camb) 2014; 50:12772-4. [PMID: 25208497 DOI: 10.1039/c4cc05438e] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The metalloligand [Ni(pedt)2](-) (pedt = 1-(pyridine-4-yl)ethylene-1,2-dithiolate) has been incorporated into two multi-dimensional structures for the first time. These coordination frameworks represent highly unusual interpenetration isomers and exhibit solid state redox and optical properties that reflect the electronically delocalised nature of the metalloligand.
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Affiliation(s)
- Thomas B Faust
- School of Chemistry, University of Sydney, NSW 2006, Australia.
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10
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Neves AIS, Santos IC, Coutinho JT, Pereira LCJ, Henriques RT, Lopes EB, Alves H, Almeida M, Belo D. 5‐Methylthiophene‐2,3‐dithiolene Transition Metal Complexes. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402048] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ana I. S. Neves
- Instituto de Telecomunicações, Polo de Lisboa, Av. Rovisco Pais, 1049‐001 Lisboa, Portugal
| | - Isabel C. Santos
- C2TN/CFMCUL, Instituto Superior Técnico, Universidade de Lisboa, E.N. 10, 2695‐066 Bobadela LRS, Portugal, http://www.itn.pt
| | - Joana T. Coutinho
- C2TN/CFMCUL, Instituto Superior Técnico, Universidade de Lisboa, E.N. 10, 2695‐066 Bobadela LRS, Portugal, http://www.itn.pt
| | - Laura C. J. Pereira
- C2TN/CFMCUL, Instituto Superior Técnico, Universidade de Lisboa, E.N. 10, 2695‐066 Bobadela LRS, Portugal, http://www.itn.pt
| | - Rui T. Henriques
- Instituto de Telecomunicações, Polo de Lisboa, Av. Rovisco Pais, 1049‐001 Lisboa, Portugal
| | - Elsa B. Lopes
- C2TN/CFMCUL, Instituto Superior Técnico, Universidade de Lisboa, E.N. 10, 2695‐066 Bobadela LRS, Portugal, http://www.itn.pt
| | - H. Alves
- INESC MN, R. Alves Redol 9, 1000‐029 Lisboa, Portugal
| | - Manuel Almeida
- C2TN/CFMCUL, Instituto Superior Técnico, Universidade de Lisboa, E.N. 10, 2695‐066 Bobadela LRS, Portugal, http://www.itn.pt
| | - Dulce Belo
- C2TN/CFMCUL, Instituto Superior Técnico, Universidade de Lisboa, E.N. 10, 2695‐066 Bobadela LRS, Portugal, http://www.itn.pt
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11
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Cerdeira AC, Belo D, Rabaça S, Pereira LCJ, Coutinho JT, Simão D, Henriques RT, Jeannin O, Fourmigué M, Almeida M. Heterodimetallic Structures Based on Cyano-Substituted Bis(dithiolene) Complexes and Ni and Cu Cyclam Cations. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201300490] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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12
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Oliveira S, Afonso ML, Dias SIG, Santos IC, Henriques RT, Rabaça S, Almeida M. An Electropolymerisable Pyridine-Functionalised Gold Bis(dithiolene) Complex. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201300222] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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13
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Li XY, Sun YG, Huo P, Shao MY, Ji SF, Zhu QY, Dai J. Metal centered oxidation or ligand centered oxidation of metal dithiolene? Spectral, electrochemical and structural studies on a nickel-4-pyridine-1,2-dithiolate system. Phys Chem Chem Phys 2013; 15:4016-23. [PMID: 23392287 DOI: 10.1039/c3cp44054k] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The complex Et(4)N[Ni(4-pedt)(2)] (1) (4-pedt = 1-(pyridine-4-yl) ethylene-1,2-dithiolate) was synthesized to investigate the behaviour of metal dithiolene compounds upon protonation and oxidation by absorption spectroscopy, electrochemistry and structural analyses and to further understand the electronic states of the dithiolene compounds. It is unexpected that the 915 nm NIR transition band is not shifted when H(+) is added, and it is only affected (blue-shifted) when the compound is oxidized. All the evidence of electronic spectra indicates that the NIR band is relevant to the central [Ni(edt)(2)] moiety (edt = ethylenedithiolate), not the behaviour of individual Ni ions or ligands. It is also not the band of intermolecular interaction of a dimer. The moderately intense band appearing at 655 nm upon protonation is assigned to the intramolecular charge-transfer band between the [Ni(edt)(2)] moiety and the pyridine. The redox potentials of the metal dithiolene are sensitive to the protonation of the pyridyl group. The structures of monocationic complex and the protonated compounds [Ni(4-Hpedt)(2)]·ClO(4)·H(2)O (2) and [Ni(4-Hpedt)(2)]·PhSO(3)·2DMF (3) were characterized by single crystal X-ray determination. The structural data demonstrate that the oxidation of the monoanionic dithiolene complex to neutral does not change the Ni-S bond distances obviously, which further indicates that the process is not only the metal centered oxidation.
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Affiliation(s)
- Xin-Yu Li
- Department of Chemistry and Key Laboratory of Organic Synthesis of Jiangsu Province, Soochow University, Suzhou 215123, People's Republic of China
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14
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Kishore R, Das SK. N-Heterocyclic based new nickel–bis(dithiolene) complexes: Synthesis, characterization and properties. Polyhedron 2013. [DOI: 10.1016/j.poly.2012.11.046] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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