1-叔丁基1h -1,2,4-三唑啉酯硫氰酸酯与硝酸酯配合物的合成与结构

M. M. Degtyarik, A. Lyakhov, Inna Grigorieva, L. Ivashkevich, Yuri V. Grigoriev, O. Ivashkevich
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引用次数: 0

摘要

用金属铜与铵盐NH4X (Х = NCS, NO3)和1-叔丁基- 1h -1,2,4-三唑(L)相互作用,直接合成了配合物[Сu(NCS)2L3]、[Сu(NO3)2L4]和[Cu(NCS)2L4]·L。通过元素分析、单晶x射线分析和红外光谱(范围4000 ~ 500 cm-1)对配合物的组成和结构进行了测定。所有配合物均为单核结构。在它们中,三唑作为单齿配体,由杂环的N4原子配位。NCS -和NO-3阴离子相应地显示出单齿N-和o -配位。在[Сu(NCS)2L3]中,铜(II)阳离子具有两个配体L的氮原子和两个硫氰酸阴离子在基位的方锥体环境,配体L的一个氮原子在顶端位置。在配合物[Сu(NO3)2L4]和[Cu(NCS)2L4]·L中,铜(II)阳离子在赤道位置被配体L的氮原子包围,在轴向位置被相应阴离子的O或N原子包围。
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Synthesis and structure of сopper(II) thiocyanate and nitrate complexes with 1-tert-butyl1H-1,2,4-triazolе
Complexes [Сu(NCS)2L3], [Сu(NO3)2L4] and [Cu(NCS)2L4]·L have been prepared by direct synthesis involving the interaction of metallic copper, ammonium salts NH4X (Х = NCS, NO3) and 1-tert-butyl-1H-1,2,4-triazole (L). Their composition and structure were determined by elemental analysis, single crystal X-ray analysis, and IR spectroscopy (range of 4000–500 cm–1). All the complexes showed mononuclear structure. In them triazole acts as a monodentate ligand, being coordinated by the N4 atom of the heterocycle. The NCS– and NO–3 anions display monodentate N- and O-coordination, accordingly. In [Сu(NCS)2L3], copper(II) cation has square-pyramidal environment of nitrogen atoms of two ligands L and two thiocyanate anions in the basal sites, and one nitrogen atom of ligand L in the apical position. In complexes [Сu(NO3)2L4] and [Cu(NCS)2L4]·L, copper(II) cations are octahedrally surrounded by nitrogen atoms of ligand L in the equatorial sites and by O or N atoms of corresponding anions in the axial positions.
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