en-series. For all six [Pt(N-N)X 2 ] complexes the solvolysis stopped at the coordination of one DMSO and the six new [Pt(N-N)DMSOX]X were isolated and characterised. Further the [PtenDMSOCl] + was isolated as its nitrate and perchlorate. DMSO exchange reactions (in DMSO) of [PtenDMSOX] + were found to be slightly slower than the solvolysis reactions, iodide again giving rise to the most labile system. Ion
摘要合成了
铂(II)配合物[Pt(NN)X 2](X = Cl,Br和I;(NN)= 1,2-
乙二胺(en)和
1,3-丙二胺(tn)) ; 通过改变NMR光谱信号的积分跟踪他们与
DMSO在
DMSO中取代卤化物的反应。发现[PtenCl 2]的速率常数在300K下为1.0×10 -4 s -1,并且根据在不同温度下的动力学运行,在这种情况下,活化能估计为82kJ×mol -1。速率常数取决于卤化物的大小,发现[PtenI 2]比其二
氯类似物大40倍。在tn系列中,反应比在en-系列中要快一些。对于所有六种[Pt(NN)X 2]配合物,溶剂分解均在一种
DMSO的配合下停止,并分离出六种新的[Pt(NN)
DMSOX] X并进行了表征。进一步分离出[Pten
DMSOC1] +的
硝酸盐和
高氯酸盐。发现[Pten
DMSOX] +的
DMSO交换反应(在
DMSO中)比溶剂分解反应稍慢,
碘化物再次导致最不稳