Implications of the crystal structure of the ammonia solvate [Au(NH 3)2]Cl·4NH3

Lavinia M. Scherf, Sebastian A. Baer, Florian Kraus, Salem M. Bawaked, Hubert Schmidbaur

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11 Scopus citations

Abstract

Crystals of diammine gold(I) chloride ammonia (1/4), [Au(NH 3)2]Cl·4NH3, have been grown from solutions of AuCl in liquid ammonia. The X-ray diffraction analysis (at 123 K) has shown that the crystals feature an extensive network of hydrogen bonds between the [H3N-Au-NH3]+ cations (with C i symmetry) and the Cl- anions, including also the ammonia molecules. There is no evidence for an emerging increase of the coordination number of the gold atom by adopting another ammonia molecule or by approaching a chloride anion. Moreover, the geometry of two distant and angular N-H···Au contacts is not a strong support of hydrogen bonds recently amply discussed in the literature.

Original languageEnglish
Pages (from-to)2157-2161
Number of pages5
JournalInorganic Chemistry
Volume52
Issue number4
DOIs
StatePublished - 18 Feb 2013
Externally publishedYes

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