Gründlinger Petra, Mardare Cezarina Cela, Wagner Thorsten, Monkowius Uwe
Institute of Experimental Physics-Surface Science Division, Johannes Kepler University Linz, Altenberger Straße 69, 4040 Linz, Austria.
Institute of Chemical Technology of Inorganic Materials, Johannes Kepler University Linz, Altenberger Straße 69, 4040 Linz, Austria.
Monatsh Chem. 2021;152(10):1201-1207. doi: 10.1007/s00706-021-02843-2. Epub 2021 Sep 15.
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 [LAu]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.
The online version contains supplementary material available at 10.1007/s00706-021-02843-2.
在本工作中,我们表明分子内氢键可用于稳定三配位膦 - 金(I)配合物。通过单晶X射线衍射确定了与金(I)原子配位的2 - (二苯基膦基)苯甲酸(L)的两种分子结构。线性的L - Au - Br显示出标准的线性配位,并通过羧酸的氢键二聚。加入另外两个膦配体后,形成配合物[LAu]X,如相应氯配合物的X射线结构所证明的,它通过三个分子内 -C(O)O - H···X氢键得以稳定。X射线粉末衍射图表明对于X = Br和I,结构相同。
在线版本包含可在10.1007/s00706-021-02843-2获取的补充材料。