Hexakis(NϪallylthiourea)tetracopper(I) Tetratrifluoromethanesulfonate, [Cu 4 {CH 2 ϭCHCH 2 NHC(S)NH 2 } 6 ](CF 3 SO 3 ) 4 (sp.gr. P2 1 /n, a ϭ 13.5463(8), b ϭ 24.129 (2), c ϭ 19.128(1) Å , β ϭ 108.053(6)°, Z ϭ 4, R ϭ 0.0440 for 13548 unique reflections) was obtained by reduction of Cu(CF 3 SO 3 ) 2 with excess of NϪallylthiocarbamide in benzene medium. Four crystallographical
By alternating-current electrochemical technique, starting from CuCl 2 · 2H 2 O and tetraallylsilane (TAS), crystals of the π complex [Cu 5 Cl 5 (CH 2 ϪCHϭCH 2 ) 4 Si] (I) were obtained, FTIR characterized and structurally investigated. The structure of I is monoclinic, space group P2 1 /n, a ϭ 12.292(3), b ϭ 12.083(3), c ϭ 13.356(3) Å , β ϭ 90.19(3)°, V ϭ 1983.7(9) Å 3 [at 100(2) K], Z ϭ 4; * Prof. Dr. V. Olijnyk E-Mail: olijnyk@uni.opole.pl [a]
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