MIXED-LIGAND COORDINATION-COMPOUNDS OF COPPER(I) WITH HETEROCYCLIC THIONES AND TERTIARY PHOSPHINES - THE CRYSTAL-STRUCTURE OF BIS (QUINOLINE-2-THIONE) BISTRIPHENYLPHOSPHINO COPPER(I) ETHYLSULFATE HEMIHYDRATE
Pd. Akrivos et al., MIXED-LIGAND COORDINATION-COMPOUNDS OF COPPER(I) WITH HETEROCYCLIC THIONES AND TERTIARY PHOSPHINES - THE CRYSTAL-STRUCTURE OF BIS (QUINOLINE-2-THIONE) BISTRIPHENYLPHOSPHINO COPPER(I) ETHYLSULFATE HEMIHYDRATE, Journal of coordination chemistry, 31(4), 1994, pp. 273-282
Copper(II) sulfate is reduced in alcoholic media in the presence of he
terocyclic thiones (i.e. pyridine-2-thione or quinoline-2-thione) and
triphenylphosphine. The resulting coordination compounds consist of CU
(thione)2(PPh3)2 cationic units; the counteranions are alkyl sulfate m
onoanions. The crystal structure of the compound prepared using quinol
ine-2-thione in ethanol reveals that the tetrahedal cationic units and
the counteranions are arranged in rows cross-linked through hydrogen
bonds formed between the oxygen atoms of the anion and water molecules
. The compound crystallizes in the triclinic space group P1BAR, a = 10
.69 (1), b = 13.47 (2), c = 18.75 (2) angstrom, alpha = 75.9 (1), beta
= 85.6 (1), gamma = 74.7 (1)-degrees, V = 2525.5 angstrom3, Z = 2. Th
e local copper environment is distorted tetrahedal with unequal Cu-S (
2.380(2), and 2.341(2) angstrom) and Cu-P (2.301(2) and 2.316(2) angst
rom) bonds; angles around copper range from 96.37(7) to 121.16(0)-degr
ees.