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Mandal S, Garu P, Chowdhury J, Saha R, Chattopadhyay S. Spectroscopic, structural and computational studies of thiophenolato bridged dirhenium(III,III) complexes. J COORD CHEM 2022. [DOI: 10.1080/00958972.2022.2144266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Suman Mandal
- Department of Chemistry, University of Kalyani, Kalyani, India
| | - Purnananda Garu
- Department of Chemistry, University of Kalyani, Kalyani, India
| | | | - Rajat Saha
- Department of Chemistry, Kazi Nazrul University, Asansol, India
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Mandal S, Mallick S, Garu P, Chowdhury J, Banerjee S, Sen S, Sarkar K, Chattopadhyay S. Novel dirhenium(III,III) complexes with bridging diphenylphosphinomethane and dithiocarbamato ligands: A combined experimental and theoretical study. Polyhedron 2021. [DOI: 10.1016/j.poly.2021.115373] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Vega A, Calvo V, Manzur J, Spodine E, Saillard JY. New dirhenium(III) compounds bridged by carboxylate ligands: N(C(4)H(9))(4)[Re(2)(OOCCF(3))Cl(6)] and Re(2)(OOCCCHCo(2)(CO)(6))(4)Cl(2). Inorg Chem 2002; 41:5382-7. [PMID: 12377031 DOI: 10.1021/ic020234e] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The solvothermal reaction of (N(C(4)H(9))(4))(2)[Re(2)Cl(8)] with trifluoroacetic acid and acetic anhydride leads to the new rhenium trifluoroacetate dimer N(C(4)H(9))(4)[Re(2)(OOCCF(3))Cl(6)] (1) and to the rhenium carbonyl dimer Re(2)(mu(2)-Cl)(2)(CO)(8) as the rhenium-reduced byproduct. The reaction of the precursor complex, N(C(4)H(9))(4)[Re(2)(OOCCF(3))Cl(6)] (1), with the organometallic carboxylic acid (CO)(6)Co(2)HCCCOOH leads to the cluster of clusters compound Re(2)(OOCCCHCo(2)(CO)(6))(4)Cl(2) (2), which has the dimer structure of Re(2)(OOCR)(4)Cl(2). Cyclic voltammetric measurements show that Re(2)(OOCCCHCo(2)(CO)(6))(4)Cl(2) (2) has one reduction centered on the dirhenium core and a reduction centered on the cobalt atoms. DFT calculations have been used to rationalize the observed displacements of the voltammetric signals in Re(2)(OOCCCHCo(2)(CO)(6))(4)Cl(2) (2) compared to the parent ligand (CO)(6)Co(2)HCCCOOH and rhenium pivalate.
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Affiliation(s)
- Andrés Vega
- Facultad de Ciencias Químicas y Farmacéuticas, Centro para la Investigación Interdisciplinaria Avanzada en Ciencia de los Materiales, Universidad de Chile, Casilla 233, Santiago, Chile
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Mixed chloride–phosphine complexes of the dirhenium core. Part 11. Reactions of [Re2Cl8]2− with secondary phosphines, PCy2H and PPh2H. Inorganica Chim Acta 2002. [DOI: 10.1016/s0020-1693(01)00789-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Angaridis PA, Cotton F, Dikarev EV, Petrukhina MA. Mixed chloride–phosphine complexes of the dirhenium core. Inorganica Chim Acta 2002. [DOI: 10.1016/s0020-1693(01)00740-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Cotton FA, Dikarev EV, Petrukhina MA. Mixed chloride/phosphine complexes of the dirhenium core. 10. Redox reactions of an edge-sharing dirhenium(III) non-metal-metal-bonded complex, Re(2)(mu-Cl)(2)Cl(4)(PMe(3))(4). Inorg Chem 2001; 40:6825-31. [PMID: 11735497 DOI: 10.1021/ic010653w] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Reduction and oxidation reactions of the dirhenium(III) non-metal-metal-bonded edge-sharing complex, Re(2)(mu-Cl)(2)Cl(4)(PMe(3))(4) (1), have been studied. Several new mono- and dinuclear rhenium compounds have been isolated and structurally characterized in the course of this study. Reductions of 1 with 1 and 2 equiv of KC(8) result in an unusual face-sharing complex having an Re(2)(5+) core, Re(2)(mu-Cl)(3)Cl(2)(PMe(3))(4) (2), and a triply bonded Re(II) compound, 1,2,7,8-Re(2)Cl(4)(PMe(3))(4) (3), respectively. Two-electron reduction of 1 in the presence of tetrabutylammonium chloride affords a new triply bonded complex of the Re(2)(4+) core, [Bu(n)()(4)N][1,2,7-Re(2)Cl(5)(PMe(3))(3)] (4). Oxidation of 1 with NOBF(4) yields a Re(IV) mononuclear compound, trans-ReCl(4)(PMe(3))(2) (5). Two isomers of the monomeric Re(III) anion, [ReCl(4)(PMe(3))(2)](-) (6, 7), have been isolated as side products. The crystal structures of compounds 2 and 4-7 have been determined by X-ray crystallography. The Re-Re distance in the face-sharing complex 2 of 2.686(1) A is relatively short. The metal-metal bond length in anion 4 of 2.2354(7) A is consistent with the usual values for the triply bonded Re(2)(4+) core compounds. In addition, a cis arrangement of trimethylphosphine ligands in the starting material 1 is retained upon reduction in the dinuclear products 2-4.
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Affiliation(s)
- F A Cotton
- Laboratory for Molecular Structure and Bonding, P.O. Box 30012, Department of Chemistry, Texas A&M University, College Station, Texas 77842-3012, USA
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Cotton FA, Dikarev EV, Petrukhina MA. Mixed chloride/phosphine complexes of the dirhenium core. 8. Synthesis and crystal structure of the quadruply bonded dirhenium(III) anion [Re(2)Cl(7)(PMe(3))](-). Inorg Chem 2001; 40:5716-8. [PMID: 11599977 DOI: 10.1021/ic010504d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- F A Cotton
- Laboratory for Molecular Structure and Bonding, Department of Chemistry, Texas A&M University, P.O. Box 30012, College Station, Texas 77842-3012, USA
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Cotton FA, Dikarev EV, Petrukhina MA. Mixed Chloride/Phosphine Complexes of the Dirhenium Core. 6. Rare or Unprecedented Isomers of [Re2Cl6(PR3)2] Stoichiometry. Inorg Chem 1999. [DOI: 10.1021/ic9906095] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- F. Albert Cotton
- Laboratory for Molecular Structure and Bonding, P.O. Box 30012, Department of Chemistry, Texas A&M University, College Station, Texas 77842-3012
| | - Evgeny V. Dikarev
- Laboratory for Molecular Structure and Bonding, P.O. Box 30012, Department of Chemistry, Texas A&M University, College Station, Texas 77842-3012
| | - Marina A. Petrukhina
- Laboratory for Molecular Structure and Bonding, P.O. Box 30012, Department of Chemistry, Texas A&M University, College Station, Texas 77842-3012
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Cotton FA, Dikarev EV, Petrukhina MA. Mixed Chloride/Phosphine Complexes of the Dirhenium Core. 5. Reduction or Disproportionation at the Re(2)(6+) Unit in Reactions with Tertiary Phosphines in Different Solvents. Inorg Chem 1999; 38:3384-3389. [PMID: 11671075 DOI: 10.1021/ic990114f] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
For reactions of the octachlorodirhenium anion, [Re(2)Cl(8)](2)(-), with tertiary phosphines PEt(3) and PPr(n)(3), the influence of solvent on the reaction pathway has been studied. It has been shown that in 1-propanol at room temperature the reaction leads to a one-electron reduction of the Re(2)(6+) core. The novel dirhenium(II,III) paramagnetic products of stoichiometries [Bu(n)(4)N][Re(2)Cl(6)(PEt(3))(2)] (1a) and Re(2)Cl(5)(PPr(n)(3))(3) (2a) have been isolated and characterized. In benzene a disproportionation process occurs resulting in mononuclear rhenium(IV) complexes ReCl(4)(PR(3))(2) (PR(3) = PEt(3) (1b) and PPr(n)(3) (2b)) in addition to 1a and 2a, respectively. The solid state structures of compounds 1a, 1b, 2a.0.25C(6)H(14), and 2b have been investigated by X-ray crystallography. The crystallographic parameters are as follows: for 1a, tetragonal space group P4(2)/m with a = 11.821(2) Å, c = 14.770(3) Å, and Z = 2; for 1b, monoclinic space group P2(1)/n with a = 8.0555(4) Å, b = 12.536(2) Å, c = 10.2041(6) Å, beta = 99.167(9) degrees, and Z = 2; for 2a.0.25C(6)H(14), monoclinic space group P2(1)/n with a = 11.7679(9) Å, b = 18.574(5) Å, c = 19.688(4) Å, beta = 93.37(2) degrees, and Z = 4; for 2b, monoclinic space group P2(1)/c with a = 8.219(2) Å, b = 11.210(1) Å, c = 14.331(3) Å, beta = 93.171(9) degrees, and Z = 2. It has also been found that the disproportionation process in benzene goes by way of an intermediate complex which is an initial product of interaction between the [Re(2)Cl(8)](2)(-) and the phosphine. In the case of the triethylphosphine ligand we formulate this complex as [Bu(n)(4)N][Re(2)Cl(7)(PEt(3))(3)] (1c).
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Affiliation(s)
- F. Albert Cotton
- Laboratory for Molecular Structure and Bonding, P.O. Box 30012, Department of Chemistry, Texas A&M University, College Station, Texas 77842-3012
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Reactions of TiCl4 with phosphines and alkylating reagents: an organometallic route to a titanium(II) cluster compound. J Organomet Chem 1999. [DOI: 10.1016/s0022-328x(98)00655-x] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Mixed chloride/phosphine complexes of the dirhenium core 4. Reaction of [Re2Cl8]2− with PMe3: one more stop on the road to Re2Cl4(PMe3)4. INORG CHEM COMMUN 1999. [DOI: 10.1016/s1387-7003(98)00138-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Cotton FA, Dikarev EV, Petrukhina MA. Mixed Chloride/Phosphine Complexes of the Dirhenium Core. 3. Novel Structures with Diethylphosphido-bridges and Terminal Diethylphosphines. Inorg Chem 1998; 37:6035-6043. [PMID: 11670740 DOI: 10.1021/ic980701l] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The interaction between octachlorodirhenium anions and diethylphosphine has been shown to strongly depend on reaction conditions, mainly the nature of the solvent and the amount of phosphine. As a result, novel dirhenium products with oxidation states ranging from Re(II) to Re(IV) have been obtained. The reaction of [Re(2)Cl(8)](2)(-) with an excess of PEt(2)H in dichloromethane or acetonitrile led to the first example of a face-sharing complex of rhenium(IV) with three phosphido-bridges, namely [Bu(n)(4)N][Re(2)(&mgr;-PEt(2))(3)Cl(6)] (1). The unusual edge-sharing Re(2)(&mgr;-PEt(2))(2)Cl(4)(PEt(2)H)(4) (2) complex of rhenium(III) with C(i)() core symmetry, containing both terminal phosphines and phosphido-bridges, has been obtained by carrying out the reaction with an excess of PEt(2)H in a benzene (or propanol) - HCl mixture at room temperature. A new example of the 1,2,7,8-type of dirhenium(II) complex, Re(2)Cl(4)(PEt(2)H)(4) (3), having diethylphosphine ligands located cis on each Re atom, has been isolated from the reaction of [Re(2)Cl(8)](2)(-) with PEt(2)H in an ethanol-HCl medium. The solid-state structures of complexes 1-3 have been investigated by X-ray crystallography. Complexes 1 and 2 both crystallized in two forms: [Bu(n)(4)N][Re(2)(&mgr;-PEt(2))(3)Cl(6)] 1a, P2(1)/n with a = 10.482(1) Å, b = 16.512(2) Å, c = 23.986(2) Å, beta = 93.637(8) degrees, and Z = 4; [Bu(n)(4)N][Re(2)(&mgr;-PEt(2))(3)Cl(6)].1.5 C(7)H(8) 1b, C2/c with a = 38.746(9) Å, b = 10.322(2) Å, c = 27.277(3) Å, beta = 110.35(1) degrees, and Z = 8; Re(2)(&mgr;-PEt(2))(2)Cl(4)(PEt(2)H)(4) 2a, P2(1)/n with a = 11.081(3) Å, b = 11.029(3) Å, c = 15.627(2) Å, beta = 90.05(1) degrees, and Z = 2; 2b, P2(1)/c with a = 16.094(3) Å, b = 15.193(3) Å, c = 15.548(3) Å, beta = 100.98(3) degrees, and Z = 4. X-ray data for complex Re(2)Cl(4)(PEt(2)H)(4) 3 are as follows: P2(1)/n with a = 10.445(2) Å, b = 10.113(3) Å, c = 13.473(2) Å, beta = 102.17(2) degrees, and Z = 2. Three bridging &mgr;-PEt(2) groups in the face-sharing complex 1 span a short metal-metal distance of 2.4060(6) Å, averaged over 1a and 1b, with a small Re-PEt(2)-Re angle of 61.34(7) degrees. The rhenium-rhenium bond length in the edge-sharing complex 2 is 2.7545(7) Å, averaged over 2a and 2b, while the bridging Re-PEt(2)-Re angle is 72.16(6) degrees, and the P-Re-P angle for the terminal phosphine ligands is 87.11(7) degrees. The Re-Re bond distance in 3, 2.2533(8) Å, is typical for triply bonded dirhenium complexes, and the P-Re-P angle for the cis phosphine groups is 93.12(6) degrees.
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Affiliation(s)
- F. Albert Cotton
- Laboratory for Molecular Structure and Bonding, P.O. Box 300012, Department of Chemistry, Texas A&M University, College Station, Texas 77842-3012
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Affiliation(s)
- F. Albert Cotton
- Department of Chemistry and Laboratory for Molecular Structure and Bonding, Texas A&M University, College Station, Texas 77842-3012
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Cotton FA, Dikarev EV, Herrero S. Mixed Chloride/Amine Complexes of Dimolybdenum(II). 1. Preparation, Characterization, and Crystal Structure of Mo2Cl4(NHEt2)4: A Quadruply-Bonded Dimolybdenum Compound with Diethylamine Ligands. Inorg Chem 1998. [DOI: 10.1021/ic980702d] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- F. Albert Cotton
- Department of Chemistry and Laboratory for Molecular Structure and Bonding, P.O. Box 300012, Texas A&M University, College Station, Texas 77842-3012
| | - Evgeny V. Dikarev
- Department of Chemistry and Laboratory for Molecular Structure and Bonding, P.O. Box 300012, Texas A&M University, College Station, Texas 77842-3012
| | - Santiago Herrero
- Department of Chemistry and Laboratory for Molecular Structure and Bonding, P.O. Box 300012, Texas A&M University, College Station, Texas 77842-3012
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Cotton FA, Dikarev EV, Jordan IV GT, Murillo CA, Petrukhina MA. Ligand Exchange or Reduction at Multiply Bonded Dimetal Units of Molybdenum and Rhenium by 2,6-Bis(diphenylphosphino)pyridine. Inorg Chem 1998; 37:4611-4616. [PMID: 11670609 DOI: 10.1021/ic980455d] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Reaction of 2,6-bis(diphenylphosphino)pyridine (bdppp or (Ph(2)P)(2)Py)) with K(4)Mo(2)Cl(8) in refluxing methanol gives Mo(2)Cl(4)(bdppp)(2) (1) with retention of the quadruple Mo-Mo bond. However, the quadruply bonded octachlorodirhenate(III) anion, Re(2)Cl(8)(2)(-), reacts with bdppp under similar conditions to afford Re(2)Cl(4)(bdppp)(2) (2), which has a triply bonded dirhenium(II) core, Re(2)(4+). An intermediate species, [Bu(n)(4)N][Re(2)Cl(7)(bdppp)] (3), containing an Re(2)(6+) core and only one bridging bdppp ligand has also been isolated. The crystal structures of complexes 1-3 have been investigated by X-ray crystallography. In all cases the potentially tridentate bdppp acts as a bidentate ligand using one N and one of the P atoms, leaving the second phosphorus atom noncoordinated. The crystallographic parameters for these structures are as follows: Mo(2)Cl(4)(bdppp)(2).2CH(2)Cl(2) (1.2CH(2)Cl(2)), monoclinic space group P2(1)/c with a = 15.475(2) Å, b = 11.5958(7) Å, c = 16.7637 (6) Å, beta = 98.178(5) degrees, Z = 2; Re(2)Cl(4)(bdppp)(2) (2), monoclinic space group P2(1)/n with a = 16.173(2) Å, b = 11.285(1) Å, c = 28.771 (4) Å, beta = 96.17(1) degrees, Z = 4; [Bu(n)(4)N][Re(2)Cl(7)(bdppp)].CH(2)Cl(2) (3.CH(2)Cl(2)), triclinic space group P&onemacr; with a = 16.054(2) Å, b = 18.562(3) Å, c = 20.205 (6) Å, alpha = 89.71(2) degrees, beta = 73.21(1) degrees, gamma = 73.47(2) degrees, Z = 4.
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Affiliation(s)
- F. Albert Cotton
- Laboratory for Molecular Structure and Bonding, Department of Chemistry, Texas A&M University, P.O. Box 300012, College Station, Texas 77842-3012, and Department of Chemistry, Universidad de Costa Rica, Ciudad Universitaria, Costa Rica
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Cotton FA, Dikarev EV, Petrukhina MA. Mixed Chloride/Phosphine Complexes of the Dirhenium Core. 2. New Reactions Involving Dimethylphenylphosphine. Inorg Chem 1998. [DOI: 10.1021/ic971522r] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- F. Albert Cotton
- Laboratory for Molecular Structure and Bonding, P.O. Box 300012, Department of Chemistry, Texas A&M University, College Station, Texas 77842-3012
| | - Evgeny V. Dikarev
- Laboratory for Molecular Structure and Bonding, P.O. Box 300012, Department of Chemistry, Texas A&M University, College Station, Texas 77842-3012
| | - Marina A. Petrukhina
- Laboratory for Molecular Structure and Bonding, P.O. Box 300012, Department of Chemistry, Texas A&M University, College Station, Texas 77842-3012
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