Schwingungsspektroskopische Untersuchungen an Trimethylphosphonium-Kationen (CH3)3PX+ (X = H, D) und Kristallstrukturen von (CH3)3PD+SbCl6 und (CH3)3PCl+SbCl6

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Abstract

Die Trimethylphosphonium-Salze (CH3)3PX+SbCl6 (X = H, D) und (CH3)3PH+MF6 (M = As, Sb) werden dargestellt und schwingungs- sowie NMR-spektroskopisch (1H, 31P, 13C) untersucht.

Zusätzlich wird über die Kristallstrukturen von (CH3)3PD+SbCl6 und (CH3)3PCl+SbCl6 berichtet. (CH3)3PD+SbCl6 kristallisiert in der orthorhombischen Raumgruppe Pnma mit a = 1 555(1) pm, b = 753,1(8) pm, c = 1166(1) pm und Z = 4. (CH3)3PCl+SbCl6 kristallisiert triklin in der Raumgruppe P1 mit a = 704,6(4) pm, b = 729,5(3) pm, c = 1391,1(7) pm, α = 89,57(4)°, b̃ = 88,04(4)°, γ = 74,98(4)° und Z = 2.

Abstract

Vibrational Spectra of Trimethylphosphonium Cations (CH3)3PX+ (X = H, D) and Crystal Structures of (CH3)3PD+SbCl6 and (CH3)3PCl+SbCl6

The trimethylphosphonium salts (CH3)3PX+SbCl6 (X = H, D) and (CH3)3PH+MF6 (M = As, Sb) are prepared and characterized by vibrational and NMR spectroscopy (1H, 31P, 13C).

In addition the crystal structures of (CH3)3PD+SbCl6 and (CH3)3PCl+SbCl6 are reported. (CH3)3PD+SbCl6 crystallizes in the orthorhombic space group Pnma with a = 1555(1) pm, b = 753.1(8) pm, c = 1166(1) pm Z = 4. (CH3)3PCl+SbCl6 crystallizes triclinic in the space group P1 with a = 704.6(4) pm, b = 729.5(3) pm, c = 1391.1(7) pm, α = 89.57(4)°, b̃ = 88.04(4)°, γ = 74.98(4)° and Z = 2.

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