首页> 外文期刊>Acta Chimica Slovenica >First N-allyl-aminothiadiazole Copper(I) π-Complexes: Synthesis and Structural Peculiarities of [Cu(L)CF3SO3] and [Cu2(L)2(H2O)2](SiF6) · 2.5H2O Compounds (L = 2-(allyl)-amino-5-methyl-1,3,4-thiadiazole)
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First N-allyl-aminothiadiazole Copper(I) π-Complexes: Synthesis and Structural Peculiarities of [Cu(L)CF3SO3] and [Cu2(L)2(H2O)2](SiF6) · 2.5H2O Compounds (L = 2-(allyl)-amino-5-methyl-1,3,4-thiadiazole)

机译:第一个N-烯丙基-氨基噻二唑铜(I)π复合物:[Cu(L)CF3SO3]和[Cu2(L)2(H2O)2](SiF6)·2.5H2O化合物的合成和结构特殊性(L = 2- (烯丙基)-氨基-5-甲基-1,3,4-噻二唑)

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摘要

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)2](SiF6)2 · 2.5H2O (2) (L-2-(allyl)-arnino-5-methyl-l,3,4-thiadiazo-le) 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 thia-diazole 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.
机译:借助交流电化学技术,两个具有氟的阴离子的铜(I)结晶铜络合物[Cu(L)CF3SO3](1)和[Cu2(L)2(H2O)2](SiF6)2·2.5H2O( 2)已经获得(L-2-(烯丙基)-氨基-5-甲基-1,3,4-噻二唑-le)并通过X射线单晶衍射和拉曼光谱表征。在这两种结构中,有机分子L都是螯合桥三齿配体,通过两个N-噻二唑环原子和烯丙基的C = C键与铜(I)连接,从而形成稳定的阳离子二聚体[{ L)} 2]〜(2+)。在结构1中,三氟甲磺酸根阴离子中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H2O分子在铜环境中出现。氢键(D)-H··A(其中D = O,N,C; A = O,F)在2D-(1)和3D-(2)骨架的形成中起重要作用。

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