Structures of dibromodicyanoaurate complexes with methoxymethyltriphenylphosphonium and tetraphenylstibonium cations

• Published in: Russian chemical bulletin Vol. 70; no. 10; pp. 1946 - 1950
• Main Authors: Shevchenko, D. P., Khabina, A. E., Sharutin, V. V., Sharutina, O. K., Senchurin, V. S., Eltsov, O. S.
• Format: Journal Article
• Language: English
• Published: New York Springer US 01-10-2021; Springer Nature B.V
• Subjects: Acetonitrile; Anions; Cations; Chemistry; Chemistry and Materials Science; Chemistry/Food Science; Coordination polymers; Crystallography; Crystals; Full Article; Infrared spectroscopy; Inorganic Chemistry; NMR spectroscopy; Organic Chemistry; Recrystallization; dibromodicyanoaurate; synthesis; tetraphenylsti-bonium; X-ray diffraction; methoxymethyltriphenylphosphonium; structure
• ISSN: 1066-5285; 1573-9171
• DOI: 10.1007/s11172-021-3301-5

The reaction of potassium dibromodicyanoaurate with methoxymethyltriphenylphosphonium and tetraphenylstibonium chlorides in water followed by recrystallization from acetonitrile gave the ionic complexes [Ph
3
PCH
2
OMe][Au(CN)
2
Br
2
] (
1
) and [Ph
4
Sb][Au(CN)
2
Br
2
] (
2
), which were characterized by IR and NMR spectroscopy and X-ray diffraction. The crystals of complexes
1
and
2
consist of the tetrahedral methoxymethyltriphenylphosphonium and tetra-phenylstibonium cations, respectively, and crystallographically independent square-planar dibromodicyanoaurate anions. In complex
1
, the anions form coordination polymer chains
via
Au∙∙∙Br interanionic contacts (3.46 Å).