179808-70-9Relevant academic research and scientific papers
Spectroscopic evidence for hemilabile behavior in a β-ketophosphonate complex of molybdenum(VI)
Miggins,Fettinger, James C.,Islam, M. Quamrul,Knight, D. Andrew
, p. 543 - 553 (1998)
The β-ketophosphonate complexes dichlorodioxo(diethyl(2-phenyl-2-oxoethyl)phosphonate)molybdenum(VI) (5a) and dichlorodioxo(triethylphosphonoacetate)molybdenum (VI) (5b) have been synthesized in 61-80% yield and characterized by NMR and IR spectroscopies. The crystal structure of (5a) (orthorhombic, 212121, a = 8.0909 (5) A, b = 14.1432 (5) A, c = 14.9749 (8) A, Z = 4) shows that the β-ketophosphonate ligand is coordinated to the molybdenum atom in a bidentate binding mode. In solution, compound (5a) displays hemilabile behavior as revealed by an IR spectrum recorded in CH3CN. Reaction of (5a) with diphenylsulfoxide (DPSO) in CH2Cl2 results in complete displacement of the β-ketophosphonate ligand and formation of dichlorodioxobis(diphenylsulfoxide)-molybdenum(VI) (8) in 96% yield.
