A trigonal coordination of Au(I) phosphane complexes stabilized by O-H
⋯ X (X = Cl
-, Br
-, I
-) interactions.
MONATSHEFTE FUR CHEMIE 2021;
152:1201-1207. [PMID:
34720196 PMCID:
PMC8550744 DOI:
10.1007/s00706-021-02843-2]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 08/27/2021] [Indexed: 11/01/2022]
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 version contains supplementary material available at 10.1007/s00706-021-02843-2.
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