Ardan Bogdan, Slyvka Yuriy, Goreshnik Evgeny, Mys'kiv Marian
Acta Chim Slov. 2013;60(3):484-90.
By means of alternating current electrochemical technique two crystalline copper(I) π-complexes with fluorine containing anions [Cu(L)CF3SO3] (1) and Cu2(L)2(H2O)22 · 2.5H2O (2) (L - 2-(allyl)-amino-5-methyl-1,3,4-thiadiazole) have been obtained and characterized by X-ray single crystal diffraction and Raman spectroscopy. In both structures the organic molecule L acts as chelate-bridging tridentate ligand being connected to copper(I) by two N atoms of thiadiazole ring and C=C bond from allyl group resulting in a formation of stable cationic dimers [Cu(L)2]2+. In the structure 1 oxygen atom from triflate-anion occupies an apical position of the metal coordination polyhedron, while in 2 located far from the metal centre hexafluorosilicate anion allows an appearance of the H2O molecule in copper environment. Hydrogen bonds (D)-H···A (where D = O, N, C; A = O, F) play a significant role in formation of 2D- (1) and 3D- (2) frameworks.
通过交流电化学技术，制备了两种含氟阴离子的结晶铜（I）π配合物[Cu（L）CF3SO3]（1）和[Cu2（L）2（H2O）2]（SiF6）2·2.5H2O（2）（L - 2 - （烯丙基） - 氨基 - 5 - 甲基 - 1,3,4 - 噻二唑），并通过X射线单晶衍射和拉曼光谱对其进行了表征。在这两种结构中，有机分子L作为螯合桥连三齿配体，通过噻二唑环的两个N原子和烯丙基的C = C键与铜（I）相连，形成稳定的阳离子二聚体[Cu（L）2]2+。在结构1中，三氟甲磺酸根阴离子的氧原子占据金属配位多面体的顶端位置，而在结构2中，远离金属中心的六氟硅酸根阴离子使得水分子出现在铜的环境中。氢键（D）-H···A（其中D = O、N、C；A = O、F）在二维（1）和三维（2）框架的形成中起重要作用。
