organic solvents allowed their characterization by multiple (1H, 13C, and 195Pt) NMR spectroscopy and in some cases by crystal structure analysis. Relative ligand−metal bond strength were discussed in view of 1H−195Pt NMR coupling constants. Further focus lies on the observation of binding isomers, the formation of binuclear species, multiple substitution, and the observed differences between Pt and Pd
[(COD)M(R)] 14个VE复杂片段(COD =
1,5-环辛二烯,R =甲基或新戊基(2,2-二甲基丙基),M = Pd或Pt)与
胞嘧啶核苷(Cyt)结合或尿
嘧啶(Ura),甲基化的核碱基衍
生物1-甲基
胞嘧啶(1MeCyt)或1-甲基尿
嘧啶(1MeUra),以及相关的
配体咖啡因(Caf)(
1,3,7-三甲基黄嘌呤)。从可能桥接的
胞嘧啶配体中,获得了双核
铂络合物[(COD)(Me)Pt(N3-
胞嘧啶-N1)Pt(Me)(COD)] +。相应的配合物在有机溶剂中的溶解度使其可以通过多次(1 H,13 C和195 Pt)NMR光谱进行表征,有时还可以通过晶体结构分析进行表征。鉴于以下原因讨论了相对的
配体-
金属结合强度1 H- 195 Pt NMR偶联常数。进一步的重点是观察结合的异构体,双核物质的形成,多重取代以及观察到的Pt和Pd衍
生物之间的差异。在HT-29结肠癌和MCF-7乳腺癌细