Three new complexes [Zn(NCS)(2)L-2] (1), [Hg(SCN)(2)L-2] (2) and [Mn(NCS)(2)L-4] (3), have been synthesized by the self-assembly of 4-imidazolychalcone (abbreviated as L) with M(SCN)(2) (M = Hg2+, Zn2+, Mn2+). The complexes have been characterized by spectroscopic and crystallographic methods. H-1 NMR spectra of complexes 1-3 present that metal ions have effect on the chemical shifts of protons of coordinated groups. Three complexes illustrate different molecular structures due to the different coordinated modes of the metal ions. In the title complexes, the coordination geometries of Zn, Hg and Mn ions are tetrahedral N-4, N2S2 and octahedral N-6, respectively. Finally, hydrogen bonding interactions assemble the different coordination units into higher-dimensional frameworks. The results show that the metal ion and weak non-covalent interactions play important roles in the construction of the final supramolecular structures. (c) 2012 Published by Elsevier Ltd.
Structural Characterization of Two Copper(II) Bishexafluoroacetylacetonate Complexes with N-Donor Ligands
作者:Y.-C. Wang、G.-F. Wang、Z.-R. Liu
DOI:10.1134/s0022476618030368
日期:2018.5
The synthesis and characterization of two copper complexes, Cu(hfac)2(L1)2 (1) and Cu(hfac)2(L2)2 (2) (L1 = (E)-3-(4-(1H-benzo[d]imidazol-1-yl)phenyl)-1-([1,1′-biphenyl]-4-yl)prop-2-en-1-one, L2 = (E)-3-(4-(1H-imidazol-1-yl)phenyl)-1-phenylprop-2-en-1-one) are reported. These complexes are characterized by elemental analyses, IR and single crystal X-ray diffraction analyses. The Cu(II) ions of 1 and
两种铜配合物Cu (hfac) 2 (L1) 2 (1) 和Cu (hfac) 2 (L2) 2 (2) (L1 = (E) -3- (4- (1H-benzo) [d]咪唑-1-基)苯基)-1-([1,1'-联苯基]-4-基)prop-2-en-1-one,L2=(E)-3-(4-(报道了1H-咪唑-1-基)苯基)-1-苯基丙-2-烯-1-one)。这些配合物的特征在于元素分析、IR 和单晶 X 射线衍射分析。1 和 2 的 Cu (II) 离子都处于扭曲的八面体环境中,hfac 配体的四个 O 原子和两个 L 配体的两个 N 原子。1 和 2 的超分子结构通过相邻分子之间的氢键稳定。此外,F…F 相互作用和 π – π 堆积相互作用也对配合物 2 中结构的稳定性负责。