Crystal Structure of P₄O₇

Abstract

P4O7, a new phosphorus oxide, was obtained by reaction of P4O6 with alkali metal oxides A2O. P4O7 has an adamantane‐like structure with one terminal O atom. However, the idea that these molecules are constructed, in a building‐block manner, from P4O6 and P4O10 units, with retention of the PO bond lengths is not entirely reconcilable with the structural findings.

P8O12·2BH3 − The Borane Adduct of a New Molecular Phosphorus Oxide

“…The additional double-bond contributions within P(B)ϪO, balancing the positive polarization at the fourfold-coordinated phosphorus atom P(B) at the expense of the adjacent P III ϪO P(B) bonds, strongly favor the fission of one of the destabilized P III ϪO P(B) bonds. In this respect, the behavior of the H 3 BϪP(OP) 3 group would be very similar to that of alkylated phosphites [RЈϪP(OR) 3 ] ϩ , which are immediately cleaved in the well-known MichaelisϪArbuzov reaction [51Ϫ53] yielding organic phosphonates RЈϪPO(OR) 2 . If the resulting polarities are taken into account, intermolecular recombination of the dangling PϪO bonds create molecules having exactly the constitution observed for 1 (headϪtail linkage).…”

“…[23Ϫ25] Although quantum chemical calculations for P 4 O 6 X (X ϭ O, S, H ϩ , F ϩ , Cl ϩ , N Ϫ ) [26] indicate a strong dependence of the PϪO cage bond lengths on the electronegativity of terminal atoms attached to the phosphorus atom, very similar geometrical parameters have been found for the P 4 O 6 cages of P 4 O 7 , [2,3] P 4 O 6 S, [7] P 4 O 6 Se, [11] and P 4 O 6 Fe(CO) 4 . [18] Up to now, this observation and the different behavior of P 4 O 6 NR in comparison with P 4 O 6 X (e.g.…”

“…As a consequence, the two bicyclic P 4 As there are no other phosphorus compounds known that have a similar structure, we are restricted to comparing the geometric parameters of 1 with those of P 4 O 6 X (X ϭ O, S, Se) and (RO) 3 [a] Refs. [2,3] [b] Ref. [7] [c] Ref.…”

Adamantane-type clusters: compounds with a ubiquitous architecture but a wide variety of compositions and unexpected materials properties

“…A straightforward method is the thermal oxidation reaction in the presence of trace amount of water to form [P4O7] (631). [339][340][341][342] Ligand exchange reactions using [P4S10] or [P4Se10] can be used with [P4O6] to obtain the series [(P4O6Sx] (632-635, x = 1-4) and [(P4O6Sex] (636-638, x = 1-3) with the four fold substituted selenium compound not being achieved due to the lower reactivity of the reagent, which would make temperatures above the decomposition point necessary. [343,344] By employing this strategy and starting from 632, a mixed S/Se compound [(P4O6SSe] (639) is accessible as well.…”

“…[368] [(µ4-O){(SON)Yb}4(SON)4(OH)2 (671, SON = (benzothiazole-2-yl)phenolate, Figure 14 (H3L), which comprise all oxygen atoms in the E position. [369] Please do not adjust margins Please do not adjust margins [339][340][341][342] [(P4O6Sx] (632-635, x = 1-4)…”