Acta Cryst. (2004). E60, m273-m276  [ doi:10.1107/S1600536804002442 ]

Di---pyrrolidinonato-bis[cis-diammineplatinum(II)] sulfate monohydrate as a head-to-head isomer

K. Sakai, I. Sakai, N. D. Draper and D. B. Leznoff

Abstract: In the title compound, [Pt^II₂(C₄H₆NO)₂(NH₃)₄](SO₄)·H₂O, the intradimer Pt^II-Pt^II distance is 2.9749 (11) Å, which is clearly shorter than the value of 3.029 (2) Å reported for a different salt of the same cation, viz. [Pt^II₂(C₄H₆NO)₂(NH₃)₄]₂(PF₆)₃(NO₃)·H₂O [Matsumoto et al. (1989). Inorg. Chem. 28, 2959-2964]. The two Pt coordination planes are inclined to each other by 29.9 (5)°, and the average torsional twist of the ligands about the Pt-Pt axis is estimated as 4.3 (8)°.

Online 7 February 2004

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