Petra Gründlinger, Cezarina Cela Mardare, Thorsten Wagner, Uwe Monkowius
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引用次数: 0
摘要
在这项研究中，我们发现分子内氢键可用于稳定三配位膦-金（I）络合物。我们通过单晶 X 射线衍射测定了与金（I）原子配位的 2-（二苯基膦）苯甲酸（L）的两种分子结构。线性 L-Au-Br 显示出标准的线性配位，并通过羧酸的氢键发生二聚。在加入另外两个膦烷配体后，形成了[L3Au]X 复合物，该复合物通过三个分子内-C(O)O-H ... X 氢键而稳定，这一点已被相应的氯化物复合物的 X 射线结构所证实。X 射线粉末衍射图表明 X- = Br- 和 I- 也具有相同的结构：在线版本包含补充材料，可在 10.1007/s00706-021-02843-2。
A trigonal coordination of Au(I) phosphane complexes stabilized by O-H ⋯ X (X = Cl-, Br-, I-) interactions.
In this work, we show that intramolecular hydrogen bonding can be used to stabilize tri-coordinated phosphane-gold(I) complexes. Two molecular structures of 2-(diphenylphosphino)benzoic acid (L) coordinated to a gold(I) atom were determined by single-crystal X-ray diffraction. The linear L-Au-Br shows a standard linear coordination and dimerizes via hydrogen bonds of the carboxylic acid. Upon addition of two additional phosphane ligands the complex [L3Au]X is formed which is stabilized by three intramolecular -C(O)O-H … X hydrogen bonds as proven by the X-ray structure of the respective chlorido-complex. X-ray powder diffractograms suggest the same structure also for X- = Br- and I-.
Supplementary information: The online version contains supplementary material available at 10.1007/s00706-021-02843-2.
期刊介绍：
"Monatshefte für Chemie/Chemical Monthly" was originally conceived as an Austrian journal of chemistry. It has evolved into an international journal covering all branches of chemistry. Featuring the most recent advances in research in analytical chemistry, biochemistry, inorganic, medicinal, organic, physical, structural, and theoretical chemistry, Chemical Monthly publishes refereed original papers and a section entitled "Short Communications". Reviews, symposia in print, and issues devoted to special fields will also be considered.
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