14095-06-8Relevant academic research and scientific papers
Transition metal complexes of a constrained phosphite ester. III. Metal carbonyl complexes of 4-methyl-2,6,7-trioxa-1-phosphabicyclo[2.2.2]octane
Verkade,McCarley,Hendricker,King, Roy W.
, p. 228 - 231 (2008/10/08)
The preparation and characterization of metal carbonyl complexes of 4-methyl-2,6,7-trioxa-1-phosphabicyclo[2.2.2]octane, P(OCH2)3CCH3, are described. Substitution products obtained from Ni(CO)4 include compounds of the type Ni[P(OCH2)3CCH3]x(CO)4-x where x = 1, 2, 3, or 4. Synthesis of the mono- and disubstituted complexes of Fe(CO)5, Cr(CO)6, Mo(CO)6, and W(CO)6 with P(OCH2)3CCH3 is also reported. A study of the carbonyl infrared stretching frequencies implies that P(OCH2)3CCH3 is equal to or greater than other phosphites in π-bonding ability. The proton n.m.r. spectra of the compounds are discussed with special attention given to the disubstituted complexes.
