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Obanda A, Valerius K, Mague JT, Sproules S, Donahue JP. Group 10 Metal Dithiolene Bis(isonitrile) Complexes: Synthesis, Structures, Properties, and Reactivity. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00375] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Antony Obanda
- Department of Chemistry, Tulane University, 6400 Freret Street, New Orleans, Louisiana 70118-5698, United States
| | - Kendra Valerius
- Department of Chemistry, Tulane University, 6400 Freret Street, New Orleans, Louisiana 70118-5698, United States
| | - Joel T. Mague
- Department of Chemistry, Tulane University, 6400 Freret Street, New Orleans, Louisiana 70118-5698, United States
| | - Stephen Sproules
- WestCHEM, School of Chemistry, University of Glasgow, Glasgow G12 8QQ, United Kingdom
| | - James P. Donahue
- Department of Chemistry, Tulane University, 6400 Freret Street, New Orleans, Louisiana 70118-5698, United States
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Adams H, Morris MJ, Robertson CC, Tunnicliffe HCI. Synthesis of Mono- and Diiron Dithiolene Complexes as Hydrogenase Models by Dithiolene Transfer Reactions, Including the Crystal Structure of [{Ni(S 2C 2Ph 2)} 6]. Organometallics 2019. [DOI: 10.1021/acs.organomet.8b00852] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Harry Adams
- Department of Chemistry, University of Sheffield, Sheffield S3 7HF, United Kingdom
| | - Michael J. Morris
- Department of Chemistry, University of Sheffield, Sheffield S3 7HF, United Kingdom
| | - Craig C. Robertson
- Department of Chemistry, University of Sheffield, Sheffield S3 7HF, United Kingdom
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Dithiolene transfer to the molybdenum nitrosyl complex [CpMo(CO)2(NO)]: Formation of bimetallic complexes. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.09.021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Vuong TMH, Bui TT, Sournia-Saquet A, Moreau A, Ching KIMC. Heteroleptic Bis(cis-1,2-disubstituted ethylene-1,2-dithiolato)nickel Complexes Obtained by Ligand-Exchange Reaction: Synthesis and Properties. Inorg Chem 2014; 53:2841-7. [DOI: 10.1021/ic402528j] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Thi Minh Ha Vuong
- Laboratoire de Chimie de Coordination (LCC), CNRS UPR8241, 205 route de Narbonne, BP 44099, F-31077 Toulouse, France
- Université de Toulouse, UPS, INP, LCC, F-31077 Toulouse, France
| | - Thanh-Tuan Bui
- Laboratoire de Physicochimie
des Polymères et des Interfaces (LPPI), Université de Cergy-Pontoise, 5 mail Gay Lussac/Neuville-sur-Oise, 95031 Cergy-Pontoise cedex, France
| | - Alix Sournia-Saquet
- Laboratoire de Chimie de Coordination (LCC), CNRS UPR8241, 205 route de Narbonne, BP 44099, F-31077 Toulouse, France
- Université de Toulouse, UPS, INP, LCC, F-31077 Toulouse, France
| | - Alain Moreau
- Laboratoire de Chimie de Coordination (LCC), CNRS UPR8241, 205 route de Narbonne, BP 44099, F-31077 Toulouse, France
- Université de Toulouse, UPS, INP, LCC, F-31077 Toulouse, France
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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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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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Adams H, Coffey AM, Morris MJ, Morris SA. Efficient transfer of either one or two dithiolene ligands from nickel to ruthenium: synthesis and crystal structures of [Ru(SCR=CPhS)(2)(PPh(3))] and [RuCl(2)(SCR=CPhS)(PPh(3))(2)] (R = Ph, H). Inorg Chem 2009; 48:11945-53. [PMID: 19921845 DOI: 10.1021/ic9018458] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
High yields of two different types of ruthenium dithiolene complex have been obtained by reactions that involve transfer of the dithiolene ligands from the nickel complexes [Ni(SCR=CPhS)(2)] (R = Ph, H) to [RuCl(2)(PPh(3))(3)]. At room temperature one dithiolene is rapidly transferred to yield [RuCl(2)(SCR=CPhS)(PPh(3))(2)], whereas under thermal conditions (refluxing toluene) two dithiolene ligands are incorporated to give [Ru(SCR=CPhS)(2)(PPh(3))]. The crystal structures of the ruthenium bis(dithiolene) complexes indicate that the dithiolene ligands are bonded in the monoanionic form, whereas in the monodithiolene complexes the dithioketone canonical form of the dithiolene ligand is more in evidence, as shown by the average C-S and C=C bond distances in the ligands. This is consistent with both complexes containing Ru(II) centers. The synthesis of the mixed-ligand bis(dithiolene) complex [Ru(SCH=CPhS)(S(2)C(2)Ph(2))(PPh(3))] has been achieved and it is shown that the bis(dithiolene) complexes undergo relatively slow scrambling of the dithiolene ligands in solution. The complex [Ru(SCH=CFcS)(2)(PPh(3))], containing two ferrocenyl-substituted dithiolene ligands, was also prepared, but attempts to establish the degree of electrochemical communication between them were hampered by instability and the irreversible nature of the redox processes.
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Affiliation(s)
- Harry Adams
- Department of Chemistry, University of Sheffield, Sheffield S3 7HF, UK
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Adams H, Bancroft MN, Morris MJ, Riddiough AE. Sequential Construction of One, Two, or Three Dithiolene Ligands from Alkynes and Sulfur in Dinuclear Cyclopentadienyl Molybdenum Complexes. Inorg Chem 2009; 48:9557-66. [DOI: 10.1021/ic901243m] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Harry Adams
- Department of Chemistry, University of Sheffield, Sheffield S3 7HF, U.K
| | | | - Michael J. Morris
- Department of Chemistry, University of Sheffield, Sheffield S3 7HF, U.K
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Adams H, Morris MJ, Riddiough AE, Yellowlees LJ, Lever ABP. Phosphine-Substituted Dithiolene Complexes as Ligands: Communication between Ruthenium(II) Centers Through a Dimolybdenum Bis(dithiolene) Core. Inorg Chem 2007; 46:9790-807. [PMID: 17910440 DOI: 10.1021/ic701201x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The reaction of Mo2(SCH2CH2S)2Cp2 (1; Cp=eta-C5H5) with an excess of an alkyne in refluxing dichloromethane affords the bis(dithiolene) complexes Mo2(micro-SCR1=CR2S)2Cp2 (2a, R1=R2=CO2Me; 2b, R1=R2=Ph; 2c, R1=H, R2=CO2Me) whereas with 1 equiv of alkyne at room temperature the mixed dithiolene-dithiolate species Mo2(micro-SCR1=CR2S)(micro-SCH2CH2S)Cp2 (3a, R1=R2=CO2Me; 3b, R1=R2=Ph) are formed. The remaining dithiolate ligand in 3 can then be converted into a different dithiolene by reaction with a second alkyne. Applying this methodology, we have used bis(diphenylphosphino)acetylene to prepare the first examples of complexes containing phosphine-substituted dithiolene ligands: Mo2{micro-SC(CO2Me)=C(CO2Me)S}{micro-SC(PPh2)=C(PPh2)S}Cp2 (2g) and Mo2{micro-SC(PPh2)=C(PPh2)S}2Cp2 (2h). Tri- and tetrametallic complexes can then be assembled by coordination of these diphosphines to CpRuCl units by reaction with CpRu(PPh3)2Cl. Electrochemical studies of the Ru(II)/Ru(III) couple in Mo2{micro-SC(PPh2)=C(PPh2)S}2Cp2(RuClCp)2 (4b) reveals that the two separate ruthenium centers are oxidized electrochemically at different potentials, demonstrating communication between them through the dimolybdenum bis(dithiolene) core. Density functional theory calculations were carried out to explore the electronic structures of these species and to predict and assign their electronic spectra.
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Affiliation(s)
- Harry Adams
- Department of Chemistry, University of Sheffield, Sheffield S3 7HF, UK
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Adams H, Gardner HC, McRoy RA, Morris MJ, Motley JC, Torker S. Heterometallic Dithiolene Complexes Formed by Stepwise Displacement of Cyclopentadienyl Ligands from Nickelocene with CpMo(S2C2Ph2)2. Inorg Chem 2006; 45:10967-75. [PMID: 17173456 DOI: 10.1021/ic0606227] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The dithiolene ligand transfer reaction between Ni(S2C2Ph2)2 (1) and CpMo(CO)3Cl (2; Cp = eta-C5H5) affords the neutral paramagnetic molybdenum bis(dithiolene) complex CpM(S2C2Ph2)2 (3), which has been structurally characterized. As found in other d1 complexes of this type, one dithiolene ligand is planar while the other is significantly folded toward the Cp ligand. An unexpected second product of the reaction is the unusual trinuclear species Ni[Mo(S2C2Ph2)2Cp]2 (4), which in the solid state contains three different dithiolene bonding modes (terminal, bridging, and semi-bridging) in the same molecule. Complex 4 can also be synthesized by displacement of the diene ligands in Ni(cod)2 with 2 equiv of 3. In contrast, the reaction of nickelocene with 3 proceeds by displacement of the Cp ligands in a stepwise manner to give initially the dinuclear species NiMo(mu-S2C2Ph2)2Cp2 5, which then reacts further with 3 to produce 4.
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Affiliation(s)
- Harry Adams
- Department of Chemistry, University of Sheffield, Sheffield S3 7HF, United Kingdom
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Nomura M, Cauchy T, Geoffroy M, Adkine P, Fourmigué M. [CpNi(dithiolene)] (and Diselenolene) Neutral Radical Complexes. Inorg Chem 2006; 45:8194-204. [PMID: 16999418 DOI: 10.1021/ic0608546] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Various preparations of the neutral radical [CpNi(dddt)] complex (dddt = 5,6-dihydro-1,4-dithiin-2,3-dithiolate) were investigated with CpNi sources, [Cp2Ni], [Cp2Ni](BF4), [CpNi(CO)]2, and [CpNi(cod)](BF4), and dithiolene transfer sources, O=C(dddt), the naked dithiolate (dddt(2-)), the monoanion of square-planar Ni dithiolene complex (NBu4)[Ni(dddt)2], and the neutral complex [Ni(dddt)2]. The reaction of [CpNi(cod)](BF4) with (NBu4)[Ni(dddt)2] gave the highest yield for the preparation of [CpNi(dddt)] (86%). [CpNi(ddds)] (ddds = 5,6-dihydro-1,4-dithiin-2,3-diselenolate), [CpNi(dsdt)] (dsdt = 5,6-dihydro-1,4-diselenin-2,3-dithiolate), [CpNi(bdt)] (bdt = 1,2-benzenedithiolate), and [CpNi(bds)] (bds = 1,2-benzenediselenolate) were synthesized by the reactions of [Cp2Ni] with the corresponding neutral Ni dithiolene complexes [Ni(ddds)2]2, [Ni(dsdt)2], [Ni(bdt)2], and [Ni(bds)2], respectively. The five, formally Ni(III), radical complexes oxidize and reduce reversibly. They exhibit, in the neutral state, a strong absorption in the NIR region, from 1000 nm in the dddt/ddds/dsdt series to 720 nm in the bdt/bds series with epsilon values between 2500 and 5000 M(-1) cm(-1). The molecular and solid state structures of the five complexes were determined by X-ray structure analyses. [CpNi(dddt)] and [CpNi(ddds)] are isostructural, while [CpNi(dsdt)] exhibits a closely related structure. Similarly, [CpNi(bdt)] and [CpNi(bds)] are also isostructural. Correlations between structural data and magnetic measurements show the presence of alternated spin chains in [CpNi(dddt)], [CpNi(ddds)], and [CpNi(dsdt)], while a remarkably strong antiferromagnetic interaction in [CpNi(bdt)] and [CpNi(bds)] is attributed to a Cp...Cp face-to-face sigma overlap, an original feature in organometallic radical complexes.
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Affiliation(s)
- Mitsushiro Nomura
- Laboratoire Chimie, Ingénierie Moléculaire et Matériaux d'Angers (CIMMA), UMR 6200 CNRS, Université d'Angers, UFR Sciences, Bât. K, 2 Bd. Lavoisier, 49045 Angers, France
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Nomura M, Okuyama R, Fujita-Takayama C, Kajitani M. New Synthetic Methods for η5-Cyclopentadienyl Nickel(III) Dithiolene Complexes Derived from Nickelocene. Organometallics 2005. [DOI: 10.1021/om050502r] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mitsushiro Nomura
- Department of Chemistry, Faculty of Science and Technology, Sophia University, 7-1, Kioi-cho, Chiyoda-ku, Tokyo 102-8554, Japan
| | - Ryoko Okuyama
- Department of Chemistry, Faculty of Science and Technology, Sophia University, 7-1, Kioi-cho, Chiyoda-ku, Tokyo 102-8554, Japan
| | - Chikako Fujita-Takayama
- Department of Chemistry, Faculty of Science and Technology, Sophia University, 7-1, Kioi-cho, Chiyoda-ku, Tokyo 102-8554, Japan
| | - Masatsugu Kajitani
- Department of Chemistry, Faculty of Science and Technology, Sophia University, 7-1, Kioi-cho, Chiyoda-ku, Tokyo 102-8554, Japan
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