TRANSITION-METAL-SUBSTITUTED ACYLPHOSPHANES AND PHOSPHAALKENES .35. UNPRECEDENTED COUPLING OF A TRANSITION-METAL CARBYNE AND A METHYLENE PHOSPHANE MOIETY - STRUCTURE OF [TP'(CO)(2)W-CP=C(NET2)(2)] [TP'=HB(3,5-ME2HC3N2)(3)]
L. Weber et al., TRANSITION-METAL-SUBSTITUTED ACYLPHOSPHANES AND PHOSPHAALKENES .35. UNPRECEDENTED COUPLING OF A TRANSITION-METAL CARBYNE AND A METHYLENE PHOSPHANE MOIETY - STRUCTURE OF [TP'(CO)(2)W-CP=C(NET2)(2)] [TP'=HB(3,5-ME2HC3N2)(3)], Chemische Berichte, 130(9), 1997, pp. 1305-1308
Condensation of [Tp'(CO)(2)M = CCl] [1: M = Mo; 2: W; Tp' = HB(3,5-Me2
HC3N2)(3)] with the inverse phosphaalkenes Me3SiP = C(NR2)(2) (3a: R =
Me; 3b: Et) affords the novel phosphaalkenyl carbyne complexes [Tp'(C
O)2M = C-P = C(NR2)(2)] (4a, b) (M = Mo; R = Me, Et) and 5a, b (M = W;
R = Me, Et), which have been characterized by IR, H-1-, C-13- and P-3
1-NMR spectroscopy. In addition, the molecular structure of 5b has bee
n elucidated by a single-crystal X-ray structure determination.