Zhengjing Jiang

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  • Yu Zhang, Rongqing Li, Zhengjing Jiang
  • Spectrochimica acta. Part A, Molecular and…
  • 2010
The vibrational spectra of aluminum halides, AlX(3) (X=F, Cl, Br and I) and their dimers, Al(2)X(6), have been systematically investigated by ab initio restricted Hartree-Fock (RHF) and density functional B3LYP and B3P86 methods with LanL2DZ, SDD, CEP-31G and DGDZVP basis sets. The optimized geometries, calculated vibrational frequencies were evaluated via(More)
In the title compound, hexa-μ(2)-bromido-μ(4)-oxo-tetra-kis{[3-(1-methyl-2-pyrrolidin-yl)pyridine-κN]copper(II)}, [Cu(4)Br(6)O(C(10)H(14)N(2))(4)], the four Cu atoms are tetra-hedrally arranged around the O atom at the cluster center. The Cu and coordinated N atoms lie along directions which correspond to four of the eight threefold axial directions of a(More)
Vibrational and electronic spectral measurements were made for 4,5-dihydro-6-methyl-4-[(E)-(3-pyridinylmethylene)amino]-1,2,4-triazin-3(2H)-one (pymetrozine). Optimized geometrical structure and harmonic vibrational frequencies were computed by ab initio RHF, B-based DFT methods (BLYP, BP86 and BPW91) and B3-based DFT methods (B3LYP, B3P86 and B3PW91) using(More)
The reaction of cobalt(II) nitrate with 5-amino-2,4,6-tri-iodo-isophthalic acid (ATPA) in pyridine solution leads to the formation of the title compound, {[Co(C(8)H(2)I(3)NO(4))(C(5)H(5)N)(3)(H(2)O)]·C(5)H(5)N}(n). The Co(2+) ion is six-coordinated by three N atoms, one water O atom and two O atoms from two ATPA ligands to form a distorted octa-hedral(More)
The reaction of mercury(II) chloride with 5-amino-2,4,6-triiodo-isophthalic acid in pyridine solution leads to the formation of the title compound, [Hg(C(8)H(2)I(3)NO(4))(C(5)H(5)N)(2)](n). The structure contains a four-coordinate Hg(2+) ion in a distorted tetra-hedral geometry, which lies on a crystallographic twofold axis. The Hg(2+) ion is bonded to two(More)
The asymmetric unit of the title compound, [Cd(C(10)H(8)N(2))(3)](ClO(4))(2)·0.5H(2)O, consists of one complex [Cd(bpy)(3)](2+) cation (bpy = 2,2'-bipyridine), two perchlorate anions and one water molecule with half-occupancy. The central cadmium(II) ion is bound to six N atoms from three bpy ligands in a distorted octa-hedral coordination, with Cd-N bond(More)
The title compound, [Cu(6)V(2)O(2)S(6)(C(6)H(8)N(2))(6)], is constructed from six CuS(3)N and two VOS(3) distorted tetra-hedra, forming an octa-nuclear V/S/Cu cluster with C(i) symmetry. The geometry around the V atoms is slightly distorted tetra-hedral, while there are large distortions from ideal tetra-hedral geometry for the Cu atoms. Adjacent(More)
The title polymeric complex, [HgI(2)(C(10)H(14)N(2))](n), was prepared from a solution of nicotine, mercury(II) iodide and 4-cyano-pyridine in dimethyl-formamide. Each nicotine mol-ecule is bonded to two Hg atoms, one through the pyrrolidine N atom and the other through the pyridine N atom, forming infinite zigzag polymeric chains. The coordin-ation around(More)
The title compound, {[Pr(C(2)H(6)OS)(8)](2)[Mo(6)Ag(6)S(24)]}(n), contains polymeric Mo(6)S(24)Ag(6) (2-) anions and [Pr(Me(2)SO)(8)](3+) cations, forming a one-dimensional polymeric Mo/S/Ag cluster. The anion assumes the conformation of a zigzag chain. The trivalent cations are arrayed amongst the anionic chains and are well separated from each other. Each(More)
The reaction of cobalt(II) nitrate with 5-amino-2,4,6-triiodoisophthalic acid (ATPA) in pyridine solution leads to the formation of the title compound, {[Co(C8H2I3NO4)(C5H5N)3(H2O)] C5H5N}n. The Co ion is six-coordinated by three N atoms, one water O atom and two O atoms from two ATPA ligands to form a distorted octahedral geometry. The two carboxylate(More)