Hexakis(N-allylthiourea)tetracopper(I) Tetratrifluoromethanesulfonate, [Cu4{CH2=CHCH2NHC(S)NH2} 6](CF3SO3)4 (sp.gr. P2 1/n, a = 13.5463(8), b = 24.129(2), c = 19.128(1) Å, β = 108.053(6)°, Z = 4, R = 0.0440 for 13548 unique reflections) was obtained by reduction of Cu(CF3SO3)2 with excess of N-allylthiocarbamide in benzene medium. Four crystallographical independent Cu atoms possess trigonal environment of three S atoms of CH2=CHCH 2NHC(S)NH2 moiety and form Cu4S 6 4+ adamantane-like fragments. The latteres are connected with CF3SO3 - anions via (C)-H⋯F hydrogen bonds.
Olijnyk, V. V., Filinchuk, Y., & Pandiak, N. L. (2003). Synthesis and Crystal Structure of Hexakis(N-allylthiourea)tetracopper(I) Tetratrifluoromethanesulfonate, [Cu4{CH2=CHCH 2NHC(S)NH2}6](SO3CF 3)4. Zeitschrift für anorganische und allgemeine Chemie, 629(11), 1904-1905. https://doi.org/10.1002/zaac.200300081 (Original work published 2003)