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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/11701

Title: Coupling of co-ordinated acetylide ligands with and without CO on chalcogen-stabilised mixed-metal clusters. Synthesis and characterisation of [M(2)Fe(3)(L)(2)(CO)(6)(mu(3)-E)(2){mu-CC(Ph)C(Ph)C}] and [M(2)Fe(2)(L)(2)(CO)(4)(mu(3)-E)(2){mu-CC(Ph)(CO)C(Ph)C}] (L = eta(5)-C(5)Me(5) or eta(5)-C(5)H(5), M = Mo or W, E = S, Se or Te)
Authors: MATHUR, P
AHMED, MO
DASH, AK
WALAWALKAR, MG
PURANIK, VG
Keywords: molecular-structure
complexes
polymers
binuclear
behavior
(isocyanoaryl)acetylides
mononuclear
centers
iron
Issue Date: 2000
Publisher: ROYAL SOC CHEMISTRY
Citation: JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, (17), 2916-2922
Abstract: Thermolysis of a toluene solution containing [Fe(3)(CO)(9)(mu(3)-E)(2)] (E=S or Se) and [M(L)(CO)(3)(C=CPh)], M=Mo or W, resulted in coupling of co-ordinated acetylide ligands with and without CO and formation of mixed-metal clusters [M(2)Fe(3)(L)(2)(CO)(6)(mu(3)-E)(2){mu-CC(Ph)C(Ph)C}] (L=eta(5)-C(5)Me(5), M=Mo, E=S 1 or Se 2; M=W, E=S 3 or Se 4; M=W, E=Te 5; L=eta(5)-C(5)H(5), M=Mo, E=S 6 or Se 7; M=W, E=S 8 or Se 9 and [M(2)Fe(2)(L)(2)(CO)(4)(mu(3)-E)(2){mu-CC(Ph)(CO)C(Ph)C}] (L=eta(5)-C(5)H(5), M=Mo, E=S 10 or Se 11; M=W, E=S 12 or Se 13). From the thermolysis reaction of [Mo(eta(5)-C(5)H(5))(CO)(3)(C=CPh)], the new compound [{Mo(eta(5)-C(5)H(5))(CO)(2)}(2){mu-C(Ph)C(CO)C=C(Ph)}] 15 was isolated. All compounds have been characterised by IR and (1)H, (13)C and (77)Se or (125)Te NMR spectroscopy. The crystal structures of 8, 12 and 15 were elucidated by X-ray diffraction methods.
URI: http://dx.doi.org/10.1039/b003517n
http://dspace.library.iitb.ac.in/xmlui/handle/10054/11701
http://hdl.handle.net/10054/11701
ISSN: 1472-7773
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