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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/4098

Title: Synthesis and spectroscopic characterization of (CO)(6)Fe-2{mu-EC(H)=C(H)E'} (E not equal E'; E,E'=S, Se, Te) and (CO)(6)Fe-2{mu-TeC(H)=C(H)Te}. Structural characterization of (CO)(6)Fe-2{mu-SC(Ph)=C(H)Se} and (CO)(6)Fe-2{mu-SC(H)=C(Ph)Te}
Authors: MATHUR, P
DASH, AK
HOSSAIN, M
UMBARKAR, SB
SATYANARAYANA, CVV
CHEN, YS
HOLT, EM
RAO, SN
SORIANO, M
Keywords: chalcogen carbonyl-compounds
clusters
fe2(co)6(mu-se2)
construction
alkynes
Issue Date: 1996
Publisher: AMER CHEMICAL SOC
Citation: ORGANOMETALLICS, 15(5), 1356-1361
Abstract: When acetylene gas was bubbled through methanol solutions containing the mixed-chalcogenide compounds (CO)(6)Fe-2(mu-EE') (E not equal E'; E, E' = S, Se, Te), the acetylene adducts (Co)(6)Fe-2{mu-EC(H)=C(H)E'} (1, 52%, E, E' = S, Se; 2, 46%, Et E' = S, Te; 3, 38%, E, E' = Se, Te) were obtained, In addition, trace amounts of the homochalcogenide derivatives (CO)(6)Fe-2-{mu-EC(H)=C(H)E} (E = S, Se, Te) were also obtained. The Te-2 compound (CO)(6)Fe-2{mu-TeC-(H)=C(H)Te) (4) was obtained in 32% yield from the reaction of (CO)(6)Fe-2(mu-Te-2) with acetylene. Compounds 1-4 were characterized by IR and H-1, C-13, Se-77, and Te-125 NMR spectroscopy. Crystallographic analysis of the phenylacetylene adducts (CO)(6)Fe-2{mu-SC(Ph)=C(H)Se} (5) and (CO)(6)Fe-2(CO)(6)Fe-2{mu-SC(H)=C(Ph)Te) (6) were carried out. The structures of both 5 and 6 can be described as Fe(2)SE (E = Se, Te) tetrahedral butterfly cores containing the phenylacetylene as a bridge between the two wingtip chalcogen atoms, with three terminally bonded carbonyl groups on each Fe atom.
URI: http://dx.doi.org/10.1021/om950815u
http://dspace.library.iitb.ac.in/xmlui/handle/10054/4098
http://hdl.handle.net/10054/4098
ISSN: 0276-7333
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