Smooth oxidation of phosphorus closo-type compounds. Preparation and characterization of the closo-hexa-N-methyloxythiophosphorimides P4(NMe)6SnO4-n (n = 0-3) and an improved synthesis for the closo-hexa-N-methylthiophosphorimides

A copper(I) coordination polymer containing an adamantane P–N cage ligand

“…IR spectroscopy of solid (I) as a KBr pellet indicated a shift in (P-N) from 825 cm À1 for the uncomplexed ligand to 853 cm À1 , with shoulders at 871 and 880 cm À1 , for the complexed ligand. This shift is consistent with previous studies of the chalcogenide derivatives of the ligand (Casabianca et al, 1977).…”

“…This shift is consistent with previous studies of the chalcogenide derivatives of the ligand. (Casabianca et al, 1977) It is interesting to compare this structure with the CuI complex formed by hexamethylphosphorustriamide (HMPT), the monomeric analog of P 4 (NCH 3 ) 6 . The HMPT complex of Cu I forms a cube-shaped Cu 4 I 4 core with the P ligands bound peripherally to the four Cu vertices (Arkhireeva et al, 1990) The crystallographic cone angle for the cage ligand is estimated to be 140°, roughly 10° larger than that of HMPT (Mueller & Mingos, 1995).…”

Structure, bonding, and chemistry of closo-tetraphosphorus hexakis(methylimide), P4(NCH3)6, and its derivatives. I. The structures of the tetra-p-thio and tetra-p-oxo derivatives

“…The preparations and some chemical properties of each of these have been described earlier. [3][4][5] While this work was in progress, an X-ray crystallographic study of S4P4(NMe)6 was reported, but the results were relatively inaccurate and the present ones, though still leaving much to be desired, represent a significant improvement. In later papers we shall report the structures of SP4(NMe)6, S2P4(NMe)6, and S3P4(NMe)6, spectroscopic studies of the S4P4(NMe)6 and 04P4(NMe)6 compounds, and additional adducts of P4(NMe)6.…”

(PNSiMe3)4(NMe)6: A robust tetravalent phosphaza-adamantane scaffold for molecular and macromolecular chemistry

“…[23][24][25][26] Their quantitative, one-step, multi-gram synthesis from commodity reagents (PCl3, RNH2) is appealing from a practical perspective, and their high molecular symmetry makes them inherently suited for evolving a four-directional functional platform. Quadruple oxidation of some derivatives of C with azides, sulfur, and oxygen has also been reported, [27][28][29][30][31][32] but no subsequent reactivity was possible since the resulting compounds do not feature sufficiently labile bonds. Salts of the binary polyanion P4N6 10-have also been reported, but their high temperature solid-state synthesis (>600 o C elemental melt) and insolubility have precluded further use in synthetic chemistry.…”