TY - JOUR
T1 - Reactions of [Os-3(CO)(10)(MeCN)(2)] with ethynyl thiophenes: The formation of linked clusters
AU - Ahrens, B
AU - Clarke, L P
AU - Feeder, N
AU - Khan, M S
AU - Li, P Y
AU - Martin, J N
AU - Raithby, P R
N1 - ID number: ISI:000257475300019
PY - 2008
Y1 - 2008
N2 - The reaction of 2 equiv. of [Os-3(CO)(10)(MeCN)(2)] with R-C C-L-C C-R (R = H, L = (C4H2S); R = SiMe3, L=(C4H2S-C4H2S), (C4H2S-C4H2S-C4H2S), (C4H2S)-(C14H8)-(C4H2S)) affords the series of linked clusters [{Os-3(CO)(10)}( HC C(C4H2S)C CH){Os-3(CO)(10)}] (1), [{Os-3(CO)(10)}(Me3SiC C(C4H2S-C4H2S)C CSiMe3){Os-3(CO)(10)}] (2), [{Os-3(CO)(10)}(Me3SiC C(C4H2S- C4H2S-C4H2S)C CSiMe3){Os-3(CO)(10)}] (4) and [{Os-3(CO)(10)}(Me3SiC C(C4H2S)-(C14H8)-(C4H2S)C CSiMe3){Os-3(CO)(10)}] (6) as the major products. The complexes have been characterised by a range of spectroscopic methods and, in the case of 1 and 2 by single crystal X-ray crystallography. The alkyne groups cap the osmium triangles in the expected mu(3)-eta(2)-||-bonding mode and each triangle is coordinated by nine terminal and one mu(2)-carbonyl group. Solution UV-Vis spectra of the complexes were similar to those observed for the free ligands consistent with there being little delocalisation between the cluster units and the thiophene groups. (c) 2008 Elsevier B.V. All rights reserved.
AB - The reaction of 2 equiv. of [Os-3(CO)(10)(MeCN)(2)] with R-C C-L-C C-R (R = H, L = (C4H2S); R = SiMe3, L=(C4H2S-C4H2S), (C4H2S-C4H2S-C4H2S), (C4H2S)-(C14H8)-(C4H2S)) affords the series of linked clusters [{Os-3(CO)(10)}( HC C(C4H2S)C CH){Os-3(CO)(10)}] (1), [{Os-3(CO)(10)}(Me3SiC C(C4H2S-C4H2S)C CSiMe3){Os-3(CO)(10)}] (2), [{Os-3(CO)(10)}(Me3SiC C(C4H2S- C4H2S-C4H2S)C CSiMe3){Os-3(CO)(10)}] (4) and [{Os-3(CO)(10)}(Me3SiC C(C4H2S)-(C14H8)-(C4H2S)C CSiMe3){Os-3(CO)(10)}] (6) as the major products. The complexes have been characterised by a range of spectroscopic methods and, in the case of 1 and 2 by single crystal X-ray crystallography. The alkyne groups cap the osmium triangles in the expected mu(3)-eta(2)-||-bonding mode and each triangle is coordinated by nine terminal and one mu(2)-carbonyl group. Solution UV-Vis spectra of the complexes were similar to those observed for the free ligands consistent with there being little delocalisation between the cluster units and the thiophene groups. (c) 2008 Elsevier B.V. All rights reserved.
UR - http://www.scopus.com/inward/record.url?scp=46649098488&partnerID=8YFLogxK
U2 - 10.1016/j.ica.2007.12.020
DO - 10.1016/j.ica.2007.12.020
M3 - Article
VL - 361
SP - 3117
EP - 3124
JO - Inorganica Chimica Acta
JF - Inorganica Chimica Acta
SN - 0020-1693
IS - 11
ER -