ASPECTS OF THE SOLUTION CHEMISTRY OF TRANS-DIAMMINEPLATINUM(II) COMPLEXES

被引：78
作者：
APPLETON, TG
BAILEY, AJ
BARNHAM, KJ
HALL, JR
机构：
[1] Department of Chemsitry, The University of Queensland
来源：
INORGANIC CHEMISTRY | 1992年 / 31卷 / 14期
关键词：
D O I：
10.1021/ic00040a017
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
A convenient method for small-scale preparations of trans-[PtCl2(NH3)2] (e.g., for preparing N-15-labeled compounds) is to heat [Pt(NH3)4]Cl2 at 190-195-degrees-C, under vacuum. N-15 and Pt-195 NMR spectra have been used to characterize in solution trans-diammineplatinum(II) complexes with aqua, chloro, nitrato, sulfato, acetato, and phosphato ligands. A solution of trans- [Pt(OH)(H2O)(NH3)2]+ allowed to stand gives a precipitate [{trans-Pt(mu-OH)(NH3)2}n](NO3)n. N-15 NMR spectra have been used to determine acid dissociation constants for trans-([Pt(H2O)2(NH3)2]2+)-N-15 (pK(a1) 4.35, pK(a2) 7.40) and for trans-([PtCl(H2O)(NH3)2]+)-N-15 (pK(a1) 5.63).
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页码：3077 / 3082
页数：6
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