A trigonal coordination of Au(I) phosphane complexes stabilized by O-H ^<b>⋯</b> X (X = Cl^-, Br^-, I^-) interactions.

ABSTRACT: 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 v

SUBMITTER: Grundlinger P 

PROVIDER: S-EPMC8550744 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature