Fluxional behavior of a cadmium zwitterion complex: Proton transport and tautomerism in methylene chloride solution
Fluxional behavior of a cadmium zwitterion complex: Proton transport and tautomerism in methylene chloride solution
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DOI：
10.1021/ic034620n
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发表时间：
2003-07-28
影响因子：
4.6
通讯作者：
Wicholas, M
中科院分区：
文献类型：
--
作者：
Anderson, OP;la Cour, A;Wicholas, M
异吲哚碱两性离子配位化合物Cd(4′-MeLH)(NO3)(2)的合成与结构报道了CH3OH（4′- melh = 1,3-二{2-（4-甲基吡啶基）亚胺}异吲哚啉）。在二氯甲烷溶液中，当N-H质子在相同的亚胺氮原子之间移动时，发生互变异构体相互转化。我们报告了质子转移的动力学，随后是变温度H-1核磁共振光谱，并证明溶剂化甲醇和不定水促进快速质子转移。
The synthesis and structure of the tautomeric Cd(II) isoindoline zwitterion coordination compound [Cd(4'-MeLH)(NO3)(2)].CH3OH (4'-MeLH = 1,3-bis{2-(4-methylpyridyl)imino}isoindoline) are reported. In methylene chloride solution, tautomer interconversion occurs as the N-H proton moves between the identical imine nitrogen atoms. We report the kinetics of proton transfer as followed by variable temperature H-1 NMR spectroscopy and demonstrate that methanol of solvation and adventitious water facilitate rapid proton transfer.