乙酸钯 (II) 与无环氨基酸在丙酮/水中的反应产生方形平面双螯合钯氨基酸复合物,显示出有趣的非共价相互作用。在所有情况下,复合物都通过多种光谱技术进行了检查,尤其是 HRMS(高分辨率质谱)、IR(红外光谱)和1H NMR(核磁共振)光谱。在某些情况下,能够生长出适合单晶 X 射线衍射的晶体并获得分子结构。讨论了产品的分子几何形状。除丙氨酸配合物外,所有配合物都将水分子结合到扩展晶格中并表现出NH···O和/或O···(HOH)···O氢键相互作用。根据结构表现出的扩展晶格结构讨论非共价相互作用。
Stereoisomeric Pd(II) complexes with serine, threonine, and allothreonine
作者:L. F. Krylova、L. M. Kovtunova、G. V. Romanenko、L. A. Sheludyakova、N. V. Kurat’eva
DOI:10.1134/s0036023611010165
日期:2011.1
The paper describes methods for the synthesis and isolation of solid phases of the individual stereoisomeric Pd(II) bis(amino acid) complexes with serine (SerH = NH(2)C*H(CH(2)OH)COOH, alpha-amino-beta-hydroxypropionic acid), threonine (ThrH CH(3)C*H(OH)C*H(NH(2))COOH, threo-alpha-amino-beta-hydroxybutyric acid), and allothreonine (alloThrH is erythro-alpha-amino-beta-hydroxybutyric acid): cis-[Pd(S-Ser)2], trans-[Pd(R-Ser)(S-Ser)], cis-[Pd(S-Thr)(2)], trans-[Pd(S-Thr)(2)], trans-[Pd(R-Thr)(S-Thr)], and cis-[Pd(R-alloThr)(S-alloThr)] (R, S are the absolute configurations of the asymmetric C* atom connected to the NH(2) group). The synthesized compounds were characterized by elemental analysis, IR and NMR ((1)H and (13)C) data, and X-ray diffraction analysis.
The induction of filamentous growth in Escherichia Coli by a palladium(II) complex of L-serine
作者:Alexander J. Charlson、Norma T. McArdle、Edward C. Watton