Cu(I) hexafluorosilicate π-complex with N,N′-diallylpiperazinium, [Cu(H2O)2.5{μ-C4H8N2H2(C3H5)2}0.5]SiF6·H2O: Synthesis and crystal structure
摘要:
This paper reports the ac electrochemical synthesis of the crystals of Cu(I) hexafluorosilicate pi-complex with N,N'-diallylpiperazinium of the composition [Cu(H2O)(2.5){mu-C4H8N2H2(C3H5)(2))(0.5)]SiF6 center dot H2O, i.e., the pi-complex of Cu(I) synthesized for the first time, where the Cu(I) atom simultaneously coordinates three H2O molecules. The crystals are monoclinic: space group P2(1)/a, a = 13.470(6) angstrom, b = 10.025(6) angstrom, c = 9.864(5) angstrom, gamma = 112.19(4)degrees, V = 1233(2) angstrom(3), Z = 4, R = 0.0555 for 1252 independent reflections, R-w = 0.0634 for 1145 reflections with F >= 4 sigma(F). The structure consists of the {(H2O)(2.5)Cu(C4H8N2H2(C3H5)(2))Cu(H2O)(2.5)} dimers and the SiF6 anions bonded through hydrogen contacts O-H center dot center dot center dot F and C-H center dot center dot center dot F.