The complex, {[La2(β ala)6(H2O)4](ClO4)6·H2O}n, was synthesized in aqueous solution and its crystal structure was determined by X ray diffraction method .The crystal is triclinic with space group of <IMG SRC=...The complex, {[La2(β ala)6(H2O)4](ClO4)6·H2O}n, was synthesized in aqueous solution and its crystal structure was determined by X ray diffraction method .The crystal is triclinic with space group of <IMG SRC="IMAGE/04260088.JPG"HEIGHT=11 WIDTH=12>.The cell parameters are a=0.946(1)nm, b=1.2917(1)nm, c=2.1726(3)nm,α=76.79(1)°, β=80.85(1)°,γ=83.35(1)°, V=2.5429(5)nm3, Z=2, Dc=1.958g·cm-3.The complex is an one dimensional infinite chain. The coordination number of lanthanum ion is nine, forming a distorted tricapped trigonal prism.展开更多
The Lanthanum picrate complex with 1,10 phenanthroline was synthesized, whose chemical formula can be written in [La(pic)3(phen)2]·CH3CN. The crystal X ray diffraction analysis shows that crystal belongs to monoc...The Lanthanum picrate complex with 1,10 phenanthroline was synthesized, whose chemical formula can be written in [La(pic)3(phen)2]·CH3CN. The crystal X ray diffraction analysis shows that crystal belongs to monoclinic with space group P21/a and unit cell parameters:a=17.072(4),b=16.083(4),c=17.789(4),β=106.34(2)°,V=4687(4)3, Z=4,Dc=1.735g·cm3, μ=10.106cm 1,F(000)=2448,R=0.0589,Rw=0.0589. The coordination number of La3+is nine. Acetonitrile, a solvent molecule is not coordinated. Between three Pic ligands, that possesses 2 bidentate forms six member ring with La. The other is unidentate ligand. As usually, phen is bidentate ligand.展开更多
2-fluorobenzoic acid (2-HFBA) and 2,2′-bipyridine (2,2′-bpy) was used as ligands to react with lanthanum to obtain a complex, [La(2-FBA)3·(2,2′-bpy)]2. The structure of the complex contains three independent m...2-fluorobenzoic acid (2-HFBA) and 2,2′-bipyridine (2,2′-bpy) was used as ligands to react with lanthanum to obtain a complex, [La(2-FBA)3·(2,2′-bpy)]2. The structure of the complex contains three independent molecules. In two of them, the two central metal ions are connected together through four 2-FBA groups by bidentate bridging and chelating-bridging two modes. In another, the two central metal ions are connected together through four bidentate bridging 2-FBA groups.展开更多
The complex,｛[Eu2（β-ala）6（H2O）4]（ClO4）6.H2O｝n,was synthesized in an aqueous solution with a pH value of 3.5. Its crystal structure was determined by X-ray diffraction method.The crystal was triclinic with spa...The complex,｛[Eu2（β-ala）6（H2O）4]（ClO4）6.H2O｝n,was synthesized in an aqueous solution with a pH value of 3.5. Its crystal structure was determined by X-ray diffraction method.The crystal was triclinic with space group of Pī.The cell parameters were a=0.9285（1）nm,b=1.2889（1）nm,c=2.1665（3）nm,a=76.94（1）。,β=81.05（1）。 ,γ=83.05（1）。,V=2.4850（6）nm3,Z=2,Dc=2.038Mg.m-3.The structure of the complex could be viewed as an one-dimensiomal infinite chain. The europium ion was nine-coordinated with a geometry of distorted mono capped square展开更多
The complex,[Cu2(L-ala)2(phen)2]n·2nClO4·2nH2O(L-ala=L-alaninate,phen=1,10-phenanthroline)has been synthesized and investigated by elemental analysis,IR spectroscopy,and X-ray diffraction methods.The complex...The complex,[Cu2(L-ala)2(phen)2]n·2nClO4·2nH2O(L-ala=L-alaninate,phen=1,10-phenanthroline)has been synthesized and investigated by elemental analysis,IR spectroscopy,and X-ray diffraction methods.The complex crystallizes in the monoclinic space group P21 with a=1.161 1(4)nm,b=0.717 2(2)nm,c=2.074 1(7)nm,β=101.028(6)°,V=1.695 4(9)nm3,Dc=1.760 g·cm-3,Z=4,μ=1.493 mm-1,F(000)=916,R=0.052 2,wR=0.127 9 for 7 131 unique reflections.The cations of [Cu2(L-ala)2(phen)2]n2n+ have an one-dimensional polymeric structure,due to the bridging of two Cu(phen)2+ units by a carboxylate group of L-alaninate,and each Cu(Ⅱ)ion is in a slightly distorted square-pyramidal coordination geometry,with the phen(N,N’)and the L-ala(N,O)acting as bidentate ligands in the equatorial plane and another carboxylate oxygen atom from a symmetry-related neighboring L-alaninate ion in the apical position.CCDC:277541.展开更多
文摘The complex, {[La2(β ala)6(H2O)4](ClO4)6·H2O}n, was synthesized in aqueous solution and its crystal structure was determined by X ray diffraction method .The crystal is triclinic with space group of <IMG SRC="IMAGE/04260088.JPG"HEIGHT=11 WIDTH=12>.The cell parameters are a=0.946(1)nm, b=1.2917(1)nm, c=2.1726(3)nm,α=76.79(1)°, β=80.85(1)°,γ=83.35(1)°, V=2.5429(5)nm3, Z=2, Dc=1.958g·cm-3.The complex is an one dimensional infinite chain. The coordination number of lanthanum ion is nine, forming a distorted tricapped trigonal prism.
文摘The Lanthanum picrate complex with 1,10 phenanthroline was synthesized, whose chemical formula can be written in [La(pic)3(phen)2]·CH3CN. The crystal X ray diffraction analysis shows that crystal belongs to monoclinic with space group P21/a and unit cell parameters:a=17.072(4),b=16.083(4),c=17.789(4),β=106.34(2)°,V=4687(4)3, Z=4,Dc=1.735g·cm3, μ=10.106cm 1,F(000)=2448,R=0.0589,Rw=0.0589. The coordination number of La3+is nine. Acetonitrile, a solvent molecule is not coordinated. Between three Pic ligands, that possesses 2 bidentate forms six member ring with La. The other is unidentate ligand. As usually, phen is bidentate ligand.
文摘2-fluorobenzoic acid (2-HFBA) and 2,2′-bipyridine (2,2′-bpy) was used as ligands to react with lanthanum to obtain a complex, [La(2-FBA)3·(2,2′-bpy)]2. The structure of the complex contains three independent molecules. In two of them, the two central metal ions are connected together through four 2-FBA groups by bidentate bridging and chelating-bridging two modes. In another, the two central metal ions are connected together through four bidentate bridging 2-FBA groups.
文摘The complex,｛[Eu2（β-ala）6（H2O）4]（ClO4）6.H2O｝n,was synthesized in an aqueous solution with a pH value of 3.5. Its crystal structure was determined by X-ray diffraction method.The crystal was triclinic with space group of Pī.The cell parameters were a=0.9285（1）nm,b=1.2889（1）nm,c=2.1665（3）nm,a=76.94（1）。,β=81.05（1）。 ,γ=83.05（1）。,V=2.4850（6）nm3,Z=2,Dc=2.038Mg.m-3.The structure of the complex could be viewed as an one-dimensiomal infinite chain. The europium ion was nine-coordinated with a geometry of distorted mono capped square
文摘The complex,[Cu2(L-ala)2(phen)2]n·2nClO4·2nH2O(L-ala=L-alaninate,phen=1,10-phenanthroline)has been synthesized and investigated by elemental analysis,IR spectroscopy,and X-ray diffraction methods.The complex crystallizes in the monoclinic space group P21 with a=1.161 1(4)nm,b=0.717 2(2)nm,c=2.074 1(7)nm,β=101.028(6)°,V=1.695 4(9)nm3,Dc=1.760 g·cm-3,Z=4,μ=1.493 mm-1,F(000)=916,R=0.052 2,wR=0.127 9 for 7 131 unique reflections.The cations of [Cu2(L-ala)2(phen)2]n2n+ have an one-dimensional polymeric structure,due to the bridging of two Cu(phen)2+ units by a carboxylate group of L-alaninate,and each Cu(Ⅱ)ion is in a slightly distorted square-pyramidal coordination geometry,with the phen(N,N’)and the L-ala(N,O)acting as bidentate ligands in the equatorial plane and another carboxylate oxygen atom from a symmetry-related neighboring L-alaninate ion in the apical position.CCDC:277541.
