Hexa­kis­{[1-(dimethyl­amino)­propyl­idene]oxidanium} bis­(dodeca­molybdo­phosphate) N,N-dimethyl­propionamide penta­solvate

In the asymmetric unit of the title salt, (C₅H₁₂NO)₆[PMo₁₂O₄₀]₂·5C₅H₁₁NO, there are two independent α-Keggin-type [PMo₁₂O₄₀]³⁻ polyoxidoanions, which show characteristic features with respect to bond lengths and angles. One of the [CH₃CH₂C(=OH)N(CH₃)₂]⁺ cations is hydrogen bonded to the neighboring polyoxidoanion through a C=O—H...O_bridge hydrogen bond. The organic mol­ecules and the remaining organic cations form [(C₅H₁₁NO)₂H]⁺ mol­ecule–cation pairs, two of which lie about inversion centers, through O—H...O hydrogen bonds.

N,N-Dimethyl-N',N''-bis­(2-methyl­phenyl)phospho­ric triamide mono­hydrate

In the title compound, C₁₆H₂₂N₃OP·H₂O, the P atom adopts a distorted tetra­hedral environment with the bond angles around the P atom in the range 99.98 (7)-116.20 (7)°. The P-N bond length in the [(CH₃)₂N]P(O) fragment [1.6392 (14) Å] is slightly shorter than two other P-N bonds [1.6439 (15) and 1.6530 (14) Å]. In the (CH₃)₂NP(O) fragment, one of the methyl groups is syn to the P=O bond, whereas the other one is anti to the P=O bond [C-N-P=O torsion angles = 4.80 (17) and -174.57 (15)°]. In the crystal, the water mol­ecules form hydrogen bonds to the O atoms of the P=O bond of two different mol­ecules and act as acceptors for the two amino H atoms of the same mol­ecule. As a result, chains parallel to [010] are formed.

Bis(pyrrolidin-1-yl)phosphinic (2,4-di­fluoro­benzo­yl)amide

The P atom in the title mol­ecule, C₁₅H₂₀F₂N₃O₂P, is in a distorted tetra­hedral P(O)(N)(N)₂ environment. The phosphoryl group and the NH unit adopt a syn orientation with respect to each other. An F atom at position 2 and an H atom at position 6 are found to occupy similar sites in a 0.70:0.30 ratio and were refined with fixed occupancies. The pyrrolidin-1-yl rings are disordered over two sets of sites, with site occupancies of 0.566 (6) and 0.434 (6), and were refined using a two-part model. In the crystal, hydrogen-bonded dimers linked by pairs of N—H...O(P) hydrogen bonds generate an R₂²(8) ring motif.