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Title: New tertiary phosphine derivatives of Os3(CO)12: X-ray structures of 1,2-[Os3(CO)10{PhP(o-Tol)2}2], 1,2,3-[Os3(CO)9{(4-FC6H4)3P}3], 1,2,3-[Os3(CO)9{PhP(Cy)2}3] and [Os3(µ-OH)2(CO)8{(4-FC6H4)3P}2]
Authors: Miah, Abdur R
Rajbangshi, Subas
Rahaman, Ahibur
Hossain, Kamal
Siddiquee, Tasneem A
Kabir, Shariff E
Keywords: Coordination chemistry;Osmium;Cluster compounds;Tertiary phosphines;X-ray structures
Issue Date: 12-Feb-2015
Abstract: Reactions of 1,2-[Os3(CO)10(NCMe)2] (1) with tertiary phosphines such as tris(4-fluorophenyl)phosphine (4-FC6H4)3P, bis(o-tolyl)(phenyl)phosphine PhP(o-Tol)2 and dicyclohexyl(phenyl)phosphine PhP(Cy)2 have been examined at room temperature and found to yield the di- and tri-substituted products 1,2-[Os3(CO)10(PR3)2] {(2), PR3 = (4-FC6H4)3P; (3), PR3 = PhP(o-Tol)2; (4), PR3 = PhP(Cy)2} and 1,2,3-[Os3(CO)9(PR3)3] {(5), PR3 = (4-FC6H4)3P; (6), PR3 = PhP(o-Tol)2; 7, PR3 = PhP(Cy)2} as the major products, in addition to the dihydroxyl-bridged complexes 1,2-[Os3(CO)8(PR3)2(µ-OH)2] {(8), PR3 = (4-FC6H4)3P; (9), PR3 = PhP(o-Tol)2; (10), PR3 = PhP(Cy)2} in trace amounts. Compounds (2)-(10) have been characterized by a combination of elemental analyses, infrared, NMR and mass spectral data together with single crystal X-ray diffraction studies for (3), (5), (7) and (8).
Page(s): 161-169
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.54A(02) [February 2015]

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