THE CIS EFFECT OF DIMETHYLSULFOXIDE IN THE REACTIONS OF THE CATIONIC COMPLEX CHLORO(DIMETHYL SULFOXIDE)(1,2-DIAMINOETHANE)PLATINUM(II) CHLORIDE
THE CIS EFFECT OF DIMETHYLSULFOXIDE IN THE REACTIONS OF THE CATIONIC COMPLEX CHLORO(DIMETHYL SULFOXIDE)(1,2-DIAMINOETHANE)PLATINUM(II) CHLORIDE
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DOI：
10.1021/ic50208a064
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发表时间：
1980-01-01
影响因子：
4.6
通讯作者：
TOBE, ML
中科院分区：
文献类型：
--
作者：
BONIVENTO, M;CATTALINI, L;TOBE, ML
在25.0 ℃水溶液中，研究了NH_3、N_4、NH_2 OH、NH_2 H_4、Br ~-、I ~-、SCN ~-、SeCN ~-、SO_3 ~（2-）和SC（NH_2）_2置换[Pt（Me_2SO）（en）Cl]~+和[Pt（NH_3）（en）Cl]~+（Me_2SO =二甲亚砜，en= 1，2-乙二胺）中氯离子的动力学。除了溶剂分解反应，其中两种底物具有相似的反应性，的Me 2SO复合物是至少1个数量级以上的不稳定比氨。反应活性的差异随着进入基团的亲核性而增大。Me_2SO的顺式效应较大是由于其络合物的亲核识别因子较大。
The kinetics of the replacement of the chloridein the [Pt (Me2SO)(en) Cl]+ and [Pt (NH3)(en) Cl]+ cations (Me2SO= dimethyl sulfoxide, en= 1, 2-diaminoethane) by NH3, Nf, NH2OH, N2H4, Br", I", SCN", SeCN", S032", and SC (NH2) 2 have been studied in aqueous solution at 25.0 C. Apart from the solvolytic reaction, where both substrates have similar reactivity, the Me2SO complex is at least 1 order of magnitude more labile than thatof ammonia. The reactivity difference increases with the nucleophilicityof the entering group. The greater cis effectof Me2SO arises from the greater nucleophilic discrimination factor of its complex.