The complex,C30H44N3O16DyS3,Dy2（H2O）4（Ts-β-AlaH）6·4H2O （Ts-β-AlaH=N-p-tolysulfonyl-β-Alanine）was synthesized and characterized by elemental analysis,IR,and X-ray diffraction study.The crydstal is monoclinic sydstem with P21/n space group.The cell parameters are:a=9.536（2）*!,b=18.981（3）*!,c=22.932（6）*!,β=100.15（2）°,Z=4,Mr=961,DC=2.082/cm3,V=2462.9（10）*!3.The structre of the complex can be viewed as a one-dimensional infinite chain.The Dysprosium ion is eight-coordinated with a geometry of distorted square antiprism.The antibacterial activity of the complex and N-p-tolysulfonyl-β-Alanine was tested.The results in dicated that the complexes were more bacteriostatically active than the ligand.
The title compound [Co(IM2-Py)(PCA)(N3)2] (IM2-Py = 2-(2?-pyridyl)-4,4,5,5-te- tramethylimidazoline-1-oxyl, PCA = 2-pyridine carboxylic acid) has been prepared and structurally characterized by elemental analysis, IR spectra and X-ray diffraction. It crystallizes in monoclinic, space group P21/c with a = 13.169(3), b = 11.235(2), c = 15.596(3) ?, β = 104.70(3)o, V = 2232.0(8) ?3, C18H21CoN10O3, Mr = 484.38, Z = 4, Dc = 1.441 g/cm3, μ(MoKα) = 0.811 mm-1, F(000) = 1000, the final R = 0.0563 and wR = 0.1010. The nitronyl nitroxide (NIT2Py) was reduced to IM2-Py, and another NIT2Py oxidated to PCA. The self-redox reaction between the radicals was observed. The cobalt(II) ion is six-coordinated into a distorted octahedral geometry. Meanwhile, the intermolecular hydrogen bonds result in the dimer.
The crystal structure of [MnCl(NIT-1′-MeBzIm)] (NIT-1′-MeBzIm=2-{2′-[(1′-methyl) benzimidazolyl]}-4,4,5,5-tetr...
WANG Li-ya~(a,b) CHENG Jiang-tao~(a,b) JIANG Kai~b a Department of Chemistry, Luoyang Normal University, Luoyang (471022) China b College of Chemistry and Environmental Science, Henan Normal University, Xinxiang (453002) China
A novel coordination polymer {[Zn(ts-gln)(bipy)]3H2O}n (ts-glnH2=N-p-toly-sulfonyl-glutamine,bipy=2,2-bipyridine) has been prepared and structurally characterized by X-ray diffraction method. It crystallizes in orthorhombic,space group P212121 with a=8.2622(5),b=16.6244(10),c=18.2807(10) ,V=2510.9(3) 3,C22H28N4O8SZn,Mr=573.91,Z=4,Dc= 1.518 g/cm3,μ(MoKa)=1.115 mm-1,F(000)=1192,the final R=0.0262 and wR=0.0662 for 5691 independent reflections with Rint=0.0240. The zinc(Ⅱ) atom is coordinated by N(3) and N(4) atoms of a bipy molecule,two carboxylate O(1) and O(2A) and amino N(1) atoms of ts-gln ligands,resulting in a square-pyramidal geometry. The title complex consists of an infinite zigzag chain of zinc(Ⅱ) ions linked by the carboxylate of N-p-tolysulfonyl-glutamine.
MA Lu-FangHUO Xian-KuanWANG Li-YaFAN Yao-TingZHANG Su-Yun
A new cadmium(II) compound, {[Cd[μ-(4,4'-dps)]2(H2O)2]·(4-abs)2(H2O)2}n 1 (4,4'-dps = 4,4'-dipyridylsulfide, 4-abs = deprotonated 4-amino benzenesulfonic acid), has been synthesized and structurally characterized. It belongs to the orthorhombic system, space group Pbcn with a = 19.950(3), b = 10.6381(13), c = 18.055(2) , V = 3831.8(8) 3, Z = 4, C32H36CdN6O10S4, Mr = 905.31, F(000) = 1848, μ = 0.850 mm-1, Dc = 1.569 Mg/m3 , the final R = 0.0238 and wR = 0.0589 for 3080 observed reflections with I > 2σ(I). Complex 1 is a one-dimensional linear chain coordination polymer and the repeat unit is comprised of doubly charged cadmium complex cation, uncoordinated 4-aminobenzene sulfonate anions and water molecules. The cadmium(II) ion adopts a six-coordinate distorted octahedral geometry. Complex 1 is stabilized and linked into a three-dimensional layered structure through intermolecular O–H···O and N–H···O hydrogen bonds together with electrostatic force. The cyclic voltammograms and fluorescence spectrum of 1 were also measured. It shows one irreversible redox process and emits a very strong and sharp fluorescent band at about 341 nm.
A new oxalato-bridged dinickel(Ⅱ) complex [Ni2(NIT-MeImz)4(C2O4)](Ac)2·8H2O has been synthesized and characterized structurally as well as magnetically.It crystallizes in monoclinic,space group C2/c with a=24.608(4),b=21.399(3),c=17.992(3),β=131.680(2)°,V=7076(2)3,C50H86N16Ni2O24,Mr=1412.77,Z=4,Dc=1.326 g/cm3,μ(MoKα)=0.614 mm-1,F(000)=2984,R=0.0751 and wR=0.1791 for 2956 observed reflections with Ⅰ>2σ(Ⅰ).X-ray analysis reveals that the crystal structure consists of [Ni2(NIT-MeImz)4(C2O4)]2+ moiety and two Ac-anions.Each nickel(Ⅱ) ion is six-coordinated with a distorted octahedral geometry:two nitrogen atoms and two oxygen atoms from NIT-MeImz together with two other oxygen atoms from the oxalato ion.The 2-D net structure is formed and arranged through intermolecular H-bonding interactions.Magnetic measurements show antiferromagnetic interactions for this complex.
