Hai‐Liang Zhu

Clear Ag-Ag bonds in three silver(I) carboxylate complexes with high cytotoxicity properties

Abstract The reaction of Ag2O and carboxylate ligands in ammonium solution results in three coordination polymers, [Ag(fbc)]n 1, [Ag2(cpd)]n 2 and [Ag2(idc)]n 3, where fbcH is 4-fluorobenzoic acid, cpdH2 is cyclopentane-1,1-dicarboxylic acid and idcH2 is iminodiacetic acid. The X-ray crystal structural analysis indicates that compounds 1 and 2 are two-dimensional frameworks and 3 is a three-dimensional framework. All the three complexes show clear Ag–Ag bonds and high cytotoxicity properties to normal cells and carcinoma cells.

Novel topological index F based on incidence matrix

Based on incidence matrix W, the novel topological index F is defined by the matrices L, W, X as F = LWX. The properties, the chemical environments, and the interaction of the vertexes in a molecule are taken into account in this definition. Several good QSPR models in the hetero‐atom‐containing organic compounds and inorganic compounds are obtained. Moreover, based on the definition of F and the values Ci of the vertexes or the values mFij of the chemical bonds, we have obtained serial indices, mFv, mFb, and Fw. They are successfully applied to QSPR models and good correlation results have been obtained as well.

Bis­[2-(cyclo­propyl­imino­methyl)­phenolato]­zinc(II)

The title compound, [Zn(C10H10NO)(2)], contains an enantiomeric pair of molecules in the asymmetric unit of the non-centrosymmetric space group C2. In this mononuclear compound, each Zn-II atom is coordinated by two N atoms and two O atoms from two Schiff bases in a slightly distorted tetrahedral geometry.

Synthesis, Characterization, and Cytotoxic Properties of Platinum(II)‐Amine Complexes. X‐ray Crystal Structure Determination of [Pt(C6H12N4)Cl2] · 3H2O

Three platinum(II) complexes of amines(L) have been prepared and structurally characterized and activity determined, where L is triethylenediamine, hexamethylenetetramine or pyridine, respectively. Crystal structure of [Pt(C6H12N4)Cl2] · 3H2O was determined by X‐ray single analysis, indicating that it is a cis‐compound, and with the space group of C2/c, monoclinic, and a=27.540(2) Å, b=9.175(5) Å, c=9.996(3) Å, β=104.37(3)°, U=2447.1(2) Å3, Z=8, Dx=2.466 g cm−3. The result of antitumor activity assay indicated that these complexes inhibited the growth of several human solid carcinoma cell lines strongly.

Bis­[2-(o-tolyl­imino­methyl)­phenolato]copper(II)

The title compound, [Cu(C14H12NO)2], is a mononuclear copper(II) compound. The CuII atom, lying on a centre of symmetry, is four-coordinated by two N atoms and two O atoms from two Schiff base ligands, giving a square-planar geometry.

trans-Bis{1-[3-(cyclo­hexyl­amino)­propyl­imino­methyl]-2-naphtholato-κ3O,N,N′}cobalt(III) perchlorate

In the title compound, [Co(C20H25N2O)(2)] ClO4, there are two independent centrosymmetric molecules of the cation, in which the central Co-III atoms are six-coordinated by four N atoms and two O atoms from two Schiff bases, giving approximately octahedral coordination environments.

Dichloro{2‐[N‐(2‐hydro­xy­ethyl­ammonio­ethyl)­imino­methyl]­phenolate}zinc(II)

# 2003 International Union of Crystallography Printed in Great Britain ± all rights reserved In the title compound, [ZnCl2(C11H16N2O2)], the Zn atom is four-coordinated by one N atom and one O atom from the bidentate 2-[N-(2-hydroxyethylammonioethyl)iminomethyl]phenolate ligand and two Cl atoms in a distorted tetrahedral geometry. In the crystal, the molecules are stabilized by two NÐH O hydrogen bonds, to form columns along the a direction, which are further interconnected by OÐH Cl interactions into a three-dimensional network.

Synthesis and Characterization of Ni(II) Chelate with Schiff Base Ligands Derived from S‐hydrazyldithiocarbazate and p‐dibutylaminobenzaldehyde

A new nickel complex, bis[S‐hydrazyl‐p‐N‐(4‐dibutylaminophenyl)methylenedithiocarbazate]nickel(II) has been synthesized. It was characterized by elemental analysis and X‐ray crystallography. The crystal structure of the complex belongs to the triclinic system with the space group P‐1, a=8.920(2) Å, b=10.080(2) Å, c=12.763(3) Å, α=92.12(3)°, β=110.36(3)°, γ=115.03(3)°, U=951.6(4) Å3, Z=1, d=1.277 g cm−3.

Synthesis and Characterization of Diaquatetra(3,5‐dinitrobenzoato)tetrasilver(I) and Polymeric (Ethylenediaminesilver(I) Di(3,5‐dinitrobenzoato)silver(I) Dihydrate)

Two new silver complexes have been synthesized, diaquatetra(3,5‐dinitrobenzoato)‐tetrasilver(I) (1) and polymeric (ethylenediaminesilver(I) di(3,5‐dinitrobenzoato)silver(I) dihydrate) (2). These two complexes were characterized by elemental analyses and X‐ray crystallographic technique. The crystal structure of (1) belongs to the monoclinic system with the space group P2 1 /c, a = 5.685(11) Å, b = 16.96(3) Å, c = 19.67(4) Å, α = 90.00°, β = 90.00(3)°, γ = 90.00°, U = 1897(6) Å3, Z = 2, Dx = 1.544 g cm−3. The crystal structure of (2) belongs to the triclinic system with the space group P‐1. a = 6.978(2) Å, b = 12.919(5) Å, c = 15.0291(5) Å, α = 84.320(6)°, β = 76.810(5)°, γ = 79.612(6)°, U = 1295.2(8)3, Z = 2, Dx = 1.882 g cm−3. This work was supported by the Foundation of the Education Office of Anhui Province, Peoples Republic of China, and the grant Nos. are 2004kj300zd and 2004kj302.

4-(3,4-Di­methyl­phenyl)-3,5-di-2-pyridyl-4H-1,2,4-triazole

The title compound, C21H19N5, has been synthesized and characterized by single-crystal X-ray diffraction. The dihedral angle between the benzene and triazole rings is 123.0 (5)°. The triazole ring forms dihedral angles of 36.5 (5) and 50.1 (5)° with the two pyridyl rings.