91424-01-0Relevant academic research and scientific papers
CH2=PPh and CH2=AsPh as Ligands Coordinated to Rhodium. Crystal and Molecular Structure of C5Me5Rh(ν2-CH2PPh)(CO) and C5Me5(CO)Rh(AsPh)3
Werner, Helmut,Paul, Wilfried,Wolf, Justin,Steinmetz, Margarete,Zolk, Ralf,et al.
, p. 1061 - 1066 (2007/10/02)
C5Me5RhCH2I(CO)I (1) reacts with excess LiPHPh or LiAsHPh to give the complexes C5Me5Rh(ν2-CH2EPh)(CO) (2: E = P; 3: E = As).The C-P bond length of the coordinated phosphaalkene in 2 is 174.0(4) pm and thus ca. 10 pm shorter than that of a C-P single bond.On standing in solution, the new heterocycle C5Me5(CO)Rh(AsPh)3 (4) is formed from 3.The X-ray analysis of 4 shows that the bonding distances and angles in the central nonplanar RhAs3 four-membered ring are very similar to those in cyclo-(AsCF3)4. - Keywords: Phospha- and arsaalkene rhodium complexes; Metalla heterocycle containing RhAs3; Rhodium complexes
