THE STRUCTURES OF 7-VERTEX AND 12-VERTEX STANNACARBABORANES AND THEIR RELATIONSHIP TO CYCLOPENTADIENYL TIN CATIONS

COWLEY AH, GALOW P, HOSMANE NS, Jutzi P, NORMAN NC. THE STRUCTURES OF 7-VERTEX AND 12-VERTEX STANNACARBABORANES AND THEIR RELATIONSHIP TO CYCLOPENTADIENYL TIN CATIONS. JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS. 1984;(23):1564-1565

Organometallic derivatives of diphosphinoamines, X2PN(R)PX2X_2PN(R)PX_2. Reactions with carbonyl derivatives of group 6 metals and iron pentacarbonyl. The crystal structures of [Mo(CO)4PhN(P(Oph)2)2][Mo(CO)_4PhN(P(Oph)_2)_2] and [W(CO)_4\hspace{1mm}^iPrN(PPh_2)_2]

The diphosphinoamines $X_2PN(R)PX_2 (L) (R = Me or Ph, X = OCH_2CF_3$or OPh; $R = Ph, X = OC_6H_4Br-p; R = ^iPr, X = Ph)$ react with group 6 metal carbonyl derivatives to yield the cis-chelate complexes [M(CO)4(L-PP′)]. The structures of cis-$[Mo(CO)_4PhN(P(OPh)_2)_2]$(3d) and cis-[W(CO)_4\hspace{1mm}^iPrN(PPh_2)_2] (4f) have been established by single crystal X-ray diffraction studies. Reactions with iron pentacarbonyl yield complexes in which a chelating or a bridged-bidentate mode of coordination of the ligands is observed