共查询到4条相似文献,搜索用时 0 毫秒
1.
Urko García-Couceiro Javier Cepeda Antonio Luque Sonia Pérez-Yáñez Pascual Román 《Inorganica chimica acta》2009,362(11):4212-3157
A new family of one-dimensional oxalato-bridged metal(II) complexes with formula {[M(ox)(abpt)]·4H2O}n [MII = Mn (1), Fe (2), Co (3), Zn (4); ox = oxalate dianion; abpt = 4-amino-3,5-bis(2-pyridyl)-1,2,4-triazole] has been synthesized and chemically, structurally and magnetically characterized. The crystal structures of compounds 2-4 have been solved by single crystal X-ray diffraction, whereas complex 1 has been studied by means of X-ray powder diffraction methods. All of them are isomorphous and crystallize in the triclinic space group P. The metal atoms are bridged by bis-bidentate oxalate anions forming zig-zag chains in which bidentate chelating abpt ligands complete the octahedral O4N2 donor set. The crystal structures show an open-framework that contains rectangular channels in which easily removable hydrogen bonded ribbons of water molecules are located. The occurrence of antiferromagnetic intrachain interactions for compounds 1-3 was determined by cryomagnetic susceptibility measurements. 相似文献
2.
《Inorganica chimica acta》1986,122(2):235-241
Reaction of 4-amino-3,5-bis(pyridin-2-yl)-1,2,4-triazole (NH2bpt) or its potassium salt (KNHbpt) with several rhodium(I) compounds, produces new neutral and cationic complexes of Rh(I). One of the complexes [Rh(CO)2(NH2bpt)]ClO4 has been characterized by single-crystal X-ray diffraction. The crystals are monoclinic, space group P21/n, with a = 17.6130(6), b = 11.3072(2), c = 9.0013(2) Å, β = 101.536(2)° and Z = 4. The structure has been refined to R = 0.049. 相似文献
3.
Marco H Klingele 《Inorganica chimica acta》2004,357(5):1598-1602
The synthesis and X-ray crystal structure of the complex {[CuII(Ph2PBPT)(bpy)](ClO4)2 · 2DMF}∞ where Ph2PBPT=4,4′-(1,4-phenylene)bis[3-phenyl-5-(2-pyridyl)-4H-1,2,4-triazole], bpy=2,2′-bipyridine and DMF=N,N-dimethylformamide are reported. In this one-dimensional coordination polymer the Cu2+ ions are in a distorted octahedral N6 coordination environment made up of two Ph2PBPT molecules, each chelating via one pyridine and one triazole nitrogen, and one bpy co-ligand. Within the zig-zag chain thus formed the shortest distance between two metal centres across the Ph2PBPT ligand is 13.305(3) Å while it is 10.009(3) Å between two chains. This complex represents the first structurally characterised example of a coordination compound incorporating a chelating 4,4′-bis(4H-1,2,4-triazole) as a ligand. 相似文献
4.
Juechao Jiang 《Inorganica chimica acta》2009,362(8):2933-1819
A linear trinuclear copper(II) complex (1), prepared from a new Schiff base ligand, namely the dianion of 4-chloro-6-(hydroxymethyl)-2-((3-aminopropylimino)methyl)-phenol, was synthesized and characterized in this paper. The X-ray structural study reveals that the geometry of the central Cu2 ion is elongated octahedral and that of the two side Cu(II) ions is distorted square pyramidal. The magnetic susceptibility measurements from 2 to 300 K reveal medium antiferromagnetic interactions between the Cu(II) ions with a J value of −64.6(1) cm−1. 相似文献