Bis(triphenyl-phosphanyl-idene)iminium dichloridotriphenyl-stannate(IV)

Abstract

The structure of the title compound, [Ph(3)P=N=PPh(3)](+)[Ph(3)SnCl(2)](-) or (C(36)H(30)NP(2))[Sn(C(6)H(5))(3)Cl(2)], obtained as a by product of the reaction between Ph(3)SnCl and [Ph(3)P=N=PPh(3)](+)·HSeO(3) (-), consists of discrete essentially isolated ions. Both the cation and the anion lie on twofold axes which pass through the central N atom in the cation and through the Sn(IV) atom in the anion. In the crystal, the ions inter-act only through a weak inter-action between the Cl atom of the anion and an H atom of a phenyl ring of the cation.

Fig. 1.

ORTEP drawing of the [Ph3P=N=PPh3]+ cation, showing the atom labelling and the displacement ellipsoids drawn at the 30% probability level. Hydrogen atoms are omitted for clarity. Symmetry code for generating equivalent atoms: ' = -x + 2, -y + 1, z.

Fig. 2.

ORTEP drawing of the [Ph3SnCl2]- anion, showing the atom labelling and the displacement ellipsoids drawn at the 30% probability level. Hydrogen atoms are omitted for clarity. Symmetry code for generating equivalent atoms: ' = -x + 2, -y + 2, z.

Fig. 3.

Histogram showing the distribution of the P—N—P bond angle over the 1409 [Ph3P=N=PPh3]+ cations reported in the Cambridge Structural Database (Allen, 2002).