The reactions of Co(ClO4)2·6H2O and Co(NO3)2·6H2O with the di-Schiff base ligand N,N'-bis-(1-benzimidazo-2-yl-ethylidene)-ethane-1,2-diamine (LA) in ethanol have been investigated. The reactions of LA with excess amount of cobalt salts yield the six-coordinate complexes [CoL2](ClO4)2·H2O 1 and [CoL2](NO3)2·H2O 2 as isolatable products (L = N-(1-benzimidazo-2-yl-ethylidene)-ethane-1,2-diamine), where L is a tri-dentate mono-Schiff base ligand, resulting from the hydrolysis of the precursor di-Schiff base LA. Both complexes were characterized by X-ray crystallography. Crystal data for complex 1: monoclinic, space group P21/c, a = 11.9214(10), b = 23.5828(17), c = 14.0387(12) , β = 135.219(4)o, C22H30Cl2CoN8O9, Mr = 680.37, V = 2780.1(4) 3, Z = 4, Dc = 1.625 g/cm3, μ(MoKα) = 0.876 mm-1, F(000) = 1404, the final R = 0.0725 and wR = 0.1530 for 5726 observed reflections (I > 2σ(I)). Crystal data for complex 2: monoclinic, space group P21/c, a = 18.2162(16), b = 10.0610(6), c = 18.593(2) , β = 130.099(3)o, C22H30CoN10O7, Mr = 605.49, V = 2606.5(4) 3, Z = 4, Dc = 1.543 g/cm3, μ(MoKα) = 0.722 mm-1, F(000) = 1260, the final R = 0.0619 and wR = 0.1429 for 5194 observed reflections (I > 2σ(I)). X-ray diffraction analysis reveals that each cobalt atom in the two complexes is chelated by six nitrogen atoms from two tridentate ligands L, exhibiting a slightly distorted octahedral coordination sphere. In both complexes, the strong hydrogen-bonding interactions between the lattice waters and N-H groups of the ligands result in 1D chains which are further connected by ClO4-(or NO3-) groups to form a 3D framework. In complex 2, the strong π-π interactions increase the stability of the structure.
A novel copper molybdate with mixed ligands, [{(Cu·phen)2(tp)}{(Cu·phen·H2O)2(tp)}{Mo4O14}] (phen = 1,10-phenanthroline, tp = terephthalate) 1, has been hydrothermally synthesized and structurally characterized. The crystal belongs to monoclinic system, space group P21/c with a = 13.1711(7), b = 19.6132(10), c = 13.6910(7) , β = 117.6870(10)°, V = 3131.8(3) 3, Z = 2, C64H44Cu4Mo4N8O24, Mr = 1946.99, Dc = 2.065 g/cm3, F(000) = 1920, μ(MoKα) = 2.198 mm-1, R = 0.0810 and wR = 0.2012 for 4233 observed reflections (I > 2σ(I)). The structural analysis indicates that the title compound contains a discrete tetramolybdate cluster decorated with copper complex fragments and tp ligands bridging the clusters into a wave-like layer. The hydrogen bond- ing between adjacent layers further extends the compound into a 3-D framework.
A new compound, (H3O)3{Na3(H2O)13(Cu(Gly)2)2(H2W12O42)}·11H2O (1), has been synthesized and structurally characterized, which represents the first example of a polyoxotungstate-surface being decorated with amino acid ligand. Two cis-{Cu(Gly)2}2+ engraft into the (H2W12O42)10- with Cu-O bond of 0.241 2(7) nm, and Na+ ions linked these (Cu(Gly)2)2(H2W12O42)6- clusters into a one-dimensional chain. CCDC: 278000.
＜正＞Crystal engineering of metal complexes,especially coordination polymers has been greatly developed in the p...
Shan-Ci Chen Xiao-Yuan Wu Zhen-Guo Zhao Can-Zhong Lu~* The State Key Laboratory of Structural Chemistry,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou 350002,China.
＜正＞Exploitation of polyoxometalates（POMs）as building blocks to construct organic-inorganic hybrid materials ha...
Xiao-Yuan Wu Can-Zhong Lu~* The State Key Laboratory of Structural Chemistry,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou 350002,China.
＜正＞The design and synthesis lanthanide-transition metal of heterometallic complexes, such as 3d-4f or 4d-4f me...
Fei Wang Xiao-Yuan Wu Quan-Guo Zhai Zhen-Guo Zhao Xiao-Yu Jiang Yi-Ming Xie Can-Zhong Lu~* State Key Laboratory of Structural Chemistry,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou,Fujian 350002,P.R.China.
＜正＞Polynuclear nickel（Ⅱ）co-orination compounds with derivatives of 1,2,4-triazole have been of growing researc...
Zhen-Guo Zhao Xiao-Yuan Wu Can-Zhong Lu~* State Key Laboratory of Structural Chemistry,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou,Fujian 350002,P.R.China.
＜正＞POMs,as building blocks to construct the solid-state materials with versatile organic ligands or charge com...
Yi-Ming Xie Can-Zhong Lu~* The State Key Laboratory of Structural Chemistry,Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou 350002,China.
＜正＞Coordination polymers with different networks,which have potential functions, including nonlinear optics,ca...
Zhen-Lan Fang Qi-Sheng Zhang Xiao-Yuan Wu Shan-Ci Chen Can-Zhong Lu~* The State Key Laboratory of Structure Chemistry,Fujian Institute of Research on the Structure of Matter,The Chinese Academy of Science,Fuzhou,Fujian,350002,Pepole''s Republic of China
