Synthesis and spectroscopic characterization of (CO)(6)Fe-2{mu-EC(H)=C(2-Th)E'} (E,E' = S, Se, Te; Th = C4H3S) - Structural characterization of (CO)(6)Fe-2{mu-SeC(H)=C(2-Th)Se}
DSpace at IIT Bombay
View Archive InfoField | Value | |
Title |
Synthesis and spectroscopic characterization of (CO)(6)Fe-2{mu-EC(H)=C(2-Th)E'} (E,E' = S, Se, Te; Th = C4H3S) - Structural characterization of (CO)(6)Fe-2{mu-SeC(H)=C(2-Th)Se}
|
|
Creator |
MATHUR, P
DASH, AK HOSSAIN, MM SATYANARAYANA, CVV RHEINGOLD, AL YAP, GPA LIABLESANDS, LM |
|
Subject |
chalcogen carbonyl-compounds
selenium-bridged clusters acetylenic bond reduction mixed-chalcogenide catalytic hydrodesulfurization coordination chemistry thiophene coordination metal-complexes ligands fe2(co)6(mu-se2) iron sulphur selenium tellurium thiopheneacetylene carbonyl x-ray |
|
Description |
Room temperature stirring of (CO)(6)Fe-2(mu-EE') with 2-thiopheneacetylene (2-ThC=CH) in methanol containing sodium acetate afforded the adducts (CO)(6)Fe-2{mu-EC(H)=C(2-Th)E'} (E = E', EE' = S (1), Se (2) and Te (3); E not equal E', EE' = SeS (4), STe (5), SeTe (6) and TeSe (7)). Compounds 1-7 have been characterized by IR and multinuclear (H-1, C-13, Se-77 and Te-125) NMR spectroscopy. The structure of (CO)(6)Fe-2{mu-SeC(H)=C(2-Th)Se} (2) has been established by single crystal X-ray diffraction methods. It crystallized in the triclinic space group with a = 7.771(2)Angstrom, b = 17.051(4)Angstrom, c = 20.981(5)Angstrom, alpha = 67.00(2)degrees, beta = 80.26(2)degrees, gamma = 88.67(2)degrees, V = 2520 Angstrom(3), Z = 6, D-calc = 2.159 g cm(-3). Full-matrix least squares refinement of 2 converged to R = 0.0635 and R-W = 0.0969. The structure consists of a tetrahedral butterfly core containing the thiopheneacetylene as a bridge between the two wingtip Se atoms, with three terminally bonded carbonyl groups on each Fe atom. (C) 1997 Elsevier Science S.A.
|
|
Publisher |
ELSEVIER SCIENCE SA LAUSANNE
|
|
Date |
2011-07-29T15:31:58Z
2011-12-26T12:48:46Z 2011-12-27T05:52:37Z 2011-07-29T15:31:58Z 2011-12-26T12:48:46Z 2011-12-27T05:52:37Z 1997 |
|
Type |
Article
|
|
Identifier |
JOURNAL OF ORGANOMETALLIC CHEMISTRY, 543(1-2), 135-143
0022-328X http://dx.doi.org/10.1016/S0022-328X(97)00199-X http://dspace.library.iitb.ac.in/xmlui/handle/10054/7750 http://hdl.handle.net/10054/7750 |
|
Language |
en
|
|