59570-47-7Relevant academic research and scientific papers
Direct photolytic route to trans-Cr(CO)4(AsPh3)2 and crystal structures of cis-Mo(CO)4(AsPh3)2 and cis-W(CO)4(AsPh3)2
Bergstrom, Christina L.,Luck, Rudy L.
, p. 77 - 83 (2001)
The preparation of trans-Cr(CO)4(AsPh3)2 is accomplished in reasonable yield by the direct photolysis of a solution of Cr(CO)6 and an excess of AsPh3 in heptane. The structures of cis-Mo(CO)4(AsPh3)2 and cis-W(CO)4(AsPh3)2 are reported. These are found to be isostructural and consist of distorted octahedral geometries with As-M-As angles of 102.56(2) and 102.62(2)° for M = Mo and W, respectively. The Mo-As distances of 2.6428(9) and 2.6489(9) A? are significantly longer than those in the W analogue at 2.6384(6) and 2.6361(6) A?. On the basis of a comparison to literature data, the AsPh3 ligands in these molecules can be described as extremely compressed.
