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Title: Ruthenium (I) complexes with 4-ethoxy-phenyl tellurol : X-ray crystal structure of complex [Ru2(CO)4(μ-TeC6H4OCH2CH3-4)2 (μ-dppm)] (dppm=Ph2PCH2PPh2)
Authors: Begum, Noorjahan
Hyder, Md Iqbal
Islam, Shahidul
Kabir, Shariff E
Kundu, Kalipada
Malik, K M Abdul
Issue Date: Mar-2005
Publisher: NISCAIR-CSIR, India
IPC Code: Int. Cl.7 C0715/00; G01N23/00
Abstract: The reaction of [Ru3(CO)10(μ-dppm)] (dppm= Ph2PCH2PPh2) with two molar equivalents of Te2Ar2 (Ar = C6H4OCH2CH3-4) in refluxing THF for 6 h gave the known complex [Ru2 (C O)4(μ-TeAr)(μ-dppm)] 11 together with two new complexes [Ru2(CO)6(μ-TeAr)2] 2 and cis-[Ru(CO)41-TeAr)2] 3. Complex 1 has been structurally characterized by X-ray crystallography. Both Ru atoms are in highly distorted octahedral geometry. For each Ru, two CO groups in cis positions, the other bonded Ru atom and the Te atom of a bridging TeAr ligand occupy equatorial sites, and the Te atom of the other bridging TeAr ligand and a P atom of the bridging dppm ligand are in trans positions. Thus, in complex 1, the Te atom of one TeAr group lies in the Ru2P2 plane while that of the second TeAr group at a point nearly perpendicular to this plane, making the two TeAr groups nonequivalent but keeping the two P atoms of the bridging dppm ligand in equivalent positions.
Page(s): 516-520
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections: IJC-A Vol.44A(03) [March 2005]

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