Coordination Chemistry in Water of a Free and a Lipase-Embedded Cationic NCN-Pincer Platinum Center with Neutral and Ionic Triarylphosphines
作者:Birgit Wieczorek、Dennis J. M. Snelders、Harm P. Dijkstra、Kees Versluis、Martin Lutz、Anthony L. Spek、Maarten R. Egmond、Robertus J. M. Klein Gebbink、Gerard van Koten
DOI:10.1021/om2010832
日期:2012.4.9
NCN-pincer platinum center in low-molecular-weight [2(OH2)][OTf] in both D2O and Tris buffer (Tris = tris(hydroxylmethyl)aminomethane) showed that the phosphine–platinum coordination is strongly affected by Tris buffer molecules. Two crystalstructures of a NCN-pincer platinum–phosphine and a NCN-pincer platinum–ethanolamine coordination complex with ethanolamine as a functional model of Tris with hydrogen
研究了低分子量阳离子NCN-钳式铂络合物[RC 6 H 2(CH 2 NMe 2)2 -3,5-Pt(H 2 O)-4]的铂中心在水介质中的配位化学。+(R =-(CH 2)3 P(= O)(OEt)(OC 6 H 4 NO 2 -4)(1(OH 2)),H(2(OH 2)))以及嵌入脂肪酶角质酶(cut-1)中的NCN钳式铂阳离子的铂中心; 分子量为20 619.3),并带有各种阴离子,中性和阳离子三芳基膦。甲31三芳基膦与阳离子NCN-钳形铂中心在低分子量的协调P NMR研究[2(OH 2)] [光学传递函数]在d既2 O和的Tris缓冲液(Tris =三(羟甲基)氨基甲烷)表明,Tris缓冲分子强烈影响了膦与铂的配位。NCN钳式铂-膦和NCN钳式铂-乙醇胺配位化合物与乙醇胺的两个晶体结构作为具有氢桥的Tris的功能模型,引发了二聚体超分子结构,证实在溶液中观察到的配位发生在固体中状态。A