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Tetrathiafulvalene-functionalized phosphine as a coordinating ligand. X-Ray structures of (PPh2)(4) TTF and [(AuCl)(4){(PPh2)(4)TTF}]

Tetrathiafulvalene-functionalized phosphine as a coordinating ligand. X-Ray structures of (PPh2)(4) TTF and [(AuCl)(4){(PPh2)(4)TTF}]
Tetrathiafulvalene-functionalized phosphine as a coordinating ligand. X-Ray structures of (PPh2)(4) TTF and [(AuCl)(4){(PPh2)(4)TTF}]
The phosphine (PPh2)(4) TTF (P4) (1) reacts with the gold() complexes [AuX( tht)] (X = Cl, C6F5; tht = tetrahydrothiophene) or [Au(Mes)(AsPh3)] (Mes = 2,4,6-Me3C6H2) to give tetranuclear derivatives [( AuX)(4)P4] (X = Cl, 2; C6F5, 3; Mes, 4). The analogous reaction starting with [Au(Trip)(AsPh3)] (Trip = 2,4,6-Pr-i(3) C6H2) provides the dinuclear derivative [(AuTrip)(2) P4] (5). When the phosphine P4 reacts with [Cu( MeCN)(4)]PF6, AgCF3SO3 or [Au(tht)(2)]CF3SO3 in a 2: 1 molar ratio, complexes [M(P4)(2)]A (A = PF6, M = Cu, 6; A = CF3SO3, M = Ag, 7, Au, 8) are obtained, or {[M2P4]( CF3SO3)(2)}(n) (M = Ag, 9; Au, 10) when 1: 1 molar ratios are used instead. Visible- ultraviolet and electrochemical studies of the new complexes are reported. Two, reversible one-electron oxidations to the mono- and di-cation occur in complexes 2-10 at more positive potentials than the two reversible oxidations exhibited by the free P4 (1) ligand. The structures of 1 and 2 have been confirmed by X-ray analysis.
crystal-structure, complexes, chemistry, dimensionality, p(ttf)3
1472-7773
1104-1109
Cerrada, Elena
e16191cb-1aa4-48f2-9015-99bc01c33423
Diaz, Carmelo
89f371b8-a007-45a0-85c1-84e831ff1a3e
Diaz, M. Cristina
3eeeeec7-d3f4-467d-a249-32943fb4726a
Hursthouse, Michael B.
57a2ddf9-b1b3-4f38-bfe9-ef2f526388da
Laguna, Mariano
c2c5e52a-e5ff-4ef7-862a-642401a58db7
Light, Mark E.
cf57314e-6856-491b-a8d2-2dffc452e161
Cerrada, Elena
e16191cb-1aa4-48f2-9015-99bc01c33423
Diaz, Carmelo
89f371b8-a007-45a0-85c1-84e831ff1a3e
Diaz, M. Cristina
3eeeeec7-d3f4-467d-a249-32943fb4726a
Hursthouse, Michael B.
57a2ddf9-b1b3-4f38-bfe9-ef2f526388da
Laguna, Mariano
c2c5e52a-e5ff-4ef7-862a-642401a58db7
Light, Mark E.
cf57314e-6856-491b-a8d2-2dffc452e161

Cerrada, Elena, Diaz, Carmelo, Diaz, M. Cristina, Hursthouse, Michael B., Laguna, Mariano and Light, Mark E. (2002) Tetrathiafulvalene-functionalized phosphine as a coordinating ligand. X-Ray structures of (PPh2)(4) TTF and [(AuCl)(4){(PPh2)(4)TTF}]. Journal of the Chemical Society, Dalton Transactions, (6), 1104-1109. (doi:10.1039/b106310n).

Record type: Article

Abstract

The phosphine (PPh2)(4) TTF (P4) (1) reacts with the gold() complexes [AuX( tht)] (X = Cl, C6F5; tht = tetrahydrothiophene) or [Au(Mes)(AsPh3)] (Mes = 2,4,6-Me3C6H2) to give tetranuclear derivatives [( AuX)(4)P4] (X = Cl, 2; C6F5, 3; Mes, 4). The analogous reaction starting with [Au(Trip)(AsPh3)] (Trip = 2,4,6-Pr-i(3) C6H2) provides the dinuclear derivative [(AuTrip)(2) P4] (5). When the phosphine P4 reacts with [Cu( MeCN)(4)]PF6, AgCF3SO3 or [Au(tht)(2)]CF3SO3 in a 2: 1 molar ratio, complexes [M(P4)(2)]A (A = PF6, M = Cu, 6; A = CF3SO3, M = Ag, 7, Au, 8) are obtained, or {[M2P4]( CF3SO3)(2)}(n) (M = Ag, 9; Au, 10) when 1: 1 molar ratios are used instead. Visible- ultraviolet and electrochemical studies of the new complexes are reported. Two, reversible one-electron oxidations to the mono- and di-cation occur in complexes 2-10 at more positive potentials than the two reversible oxidations exhibited by the free P4 (1) ligand. The structures of 1 and 2 have been confirmed by X-ray analysis.

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More information

Published date: 2002
Keywords: crystal-structure, complexes, chemistry, dimensionality, p(ttf)3

Identifiers

Local EPrints ID: 19696
URI: http://eprints.soton.ac.uk/id/eprint/19696
ISSN: 1472-7773
PURE UUID: 7314b897-0498-4099-a081-f67f3a555d93
ORCID for Mark E. Light: ORCID iD orcid.org/0000-0002-0585-0843

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Date deposited: 17 Feb 2006
Last modified: 18 Feb 2021 16:52

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