Abstract
New platinum(II) complexes A 2Pt(OOC) 2CCR 2 ( 1, A 2 = 3-aminohexahydroazepine, R 2 = −(CH 2 5 − ; 2, A 2 = 3-aminohexahydroazepine, R = CH 3; 3, A 2 = 3-aminohexahydroazepine, R 2 = −SCH 2CH 2S-; 4, A = cyclopropylamine, R 2 = −SCH 2CH 2 S-) have been prepared and characterized. The molecular structures of the representative complexes 1 · 2H 2O and 4 · C 3H 7NO were determined by X-ray analysis. The platinum atoms for 1 · 2H 2O and 4 · C 3H 7NO achieve a typical square planar arrangement with each nitron atom in cis position. For 1 · 2H 2O an unusually short CC bond [1.298(18) Å] has been observed in contrast to the corresponding bond [1.374(9)Å] in 4 · C 3H 7NO. The spectroscopic and physicochemical data disclose that these platinum complexes are stable and their molecular structures are retained in aqueous solution.
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