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Synthesis and characterisation of CpCoFe(2)(CO)(6)(mu(3)-S)(mu(3)-Te). Crystal structure of CpCoFe(2)(CO)(6)(mu(3)-Se)(mu(3)-Te)

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Title Synthesis and characterisation of CpCoFe(2)(CO)(6)(mu(3)-S)(mu(3)-Te). Crystal structure of CpCoFe(2)(CO)(6)(mu(3)-Se)(mu(3)-Te)
 
Creator MATHUR, P
SEKAR, P
SATYANARAYANA, CVV
MAHON, MF
 
Subject chalcogen carbonyl-compounds
chemistry
clusters
complexes
(mu-dithio)bis(tricarbonyliron)
fe2(co)6(mu-ste)
construction
reactivity
disulfides
bond
iron
cobalt
selenium
tellurium
carbonyl
cluster
x-ray diffraction
 
Description The new mixed-metal, mixed-chalcogenide cluster CpCoFe(2)(CO)(6)(mu(3)-S)(mu(3)-Te) (1) has been prepared from the room temperature reaction of Fe-2(CO)(6)(mu-STe) with CpCo(CO)(2). Compound 1 has been characterised by IR and H-1, C-13 and Te-125 NMR spectroscopy and its composition has been confirmed by elemental analysis. The previously reported compound CpCoFe(2)(CO)(6)(mu(3)-Se)(mu(3)-Te) (3) has been further characterised by Se-77 and Te-125 NMR spectroscopy and its solid state structure elucidated by X-ray crystallography. Compound 3 crystallised in the monoclinic space group C2/c with a = 35.125(2), b = 6.643(1), c = 14.910(1) Angstrom, beta = 111.79(1)degrees, V = 3230.6 Angstrom(3), Z = 8, D-c = 2.51 g cm(-3) and R = 0.0297 (R(w) = 0.0283). Its structure consists of an Fe2CoSeTe distorted square pyramidal core in which the Co atom occupies the apical site of the square pyramid, and the Fe and chalcogen atoms occupy alternate corners of the distorted square with three carbonyl groups terminally bonded to each Fe atom and an eta(5)-Cp ligand bonded to the Co atom.
 
Publisher ELSEVIER SCIENCE SA LAUSANNE
 
Date 2011-07-29T14:30:09Z
2011-12-26T12:48:45Z
2011-12-27T05:52:03Z
2011-07-29T14:30:09Z
2011-12-26T12:48:45Z
2011-12-27T05:52:03Z
1996
 
Type Article
 
Identifier JOURNAL OF ORGANOMETALLIC CHEMISTRY, 522(2), 291-295
0022-328X
http://dx.doi.org/10.1016/0022-328X(96)06281-X
http://dspace.library.iitb.ac.in/xmlui/handle/10054/7740
http://hdl.handle.net/10054/7740
 
Language en