A trigonal coordination of Au(I) phosphane complexes stabilized by O–H⋯X (X = Cl–, Br–, I–) interactions,Monatshefte für Chemie - Chemical Monthly

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A trigonal coordination of Au(I) phosphane complexes stabilized by O–H⋯X (X = Cl–, Br–, I–) interactions
Monatshefte für Chemie - Chemical Monthly ( IF 1.7 ) Pub Date : 2021-09-15 , DOI: 10.1007/s00706-021-02843-2
Petra Gründlinger ₁ , Cezarina Cela Mardare _{2,

3} , Thorsten Wagner ₁ , Uwe Monkowius ₄

Affiliation

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^–.

Graphic abstract

中文翻译：

通过 O–H⋯X (X = Cl–, Br–, I–) 相互作用稳定的 Au(I) 磷烷配合物的三角配位

在这项工作中，我们证明分子内氢键可用于稳定三配位磷烷-金（I）配合物。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）的两个分子结构。线性 L-Au-Br 显示出标准的线性配位，并通过羧酸的氢键二聚化。添加两个额外的膦配体后，形成络合物 [L ₃ Au]X，该络合物通过三个分子内 –C(O)O–H ^… X 氢键稳定，如各自氯化络合物的 X 射线结构所证明。 X 射线粉末衍射图表明 X ^– = Br ^–和 I ^–也具有相同的结构。

图文摘要

更新日期：2021-09-15

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