A trigonal coordination of Au(I) phosphane complexes stabilized by O–H⋯X (X = Cl–, Br–, I–) interactions

Autor: Petra Gründlinger, Uwe Monkowius, Cezarina Cela Mardare, Thorsten Wagner
Rok vydání: 2021
Předmět:
Zdroj: Monatshefte Fur Chemie
ISSN: 1434-4475
0026-9247
DOI: 10.1007/s00706-021-02843-2
Popis: 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
Databáze: OpenAIRE