Syntheses and Structures of Two Heteronuclear Complexes with Glycine {[CuEr(Gly)5(H2O)2](ClO4)5·H2O}n and {[Cu2Gd2(Gly)10(H2O)4](ClO4)10·4H2O}n

稀土学报(英文版), 2002, 20(5): 343-347.

李宗圣 ^1, , 孙豪岭 ^2, , 寇会忠 ^3, , 韩士田 ^4, , 高松 ^5,

1.College of Chemistry and Molecular Engineering, State Key Laboratory of Rare Earth Materials Chemistry and Applications & PKU-HKU Joint Laboratory on Rare Earth Materials and Bioinorganic Chemistry, Peking University, Beijing 100871, China;Department of C

2.College of Chemistry and Molecular Engineering, State Key Laboratory of Rare Earth Materials Chemistry and Applications & PKU-HKU Joint Laboratory on Rare Earth Materials and Bioinorganic Chemistry, Peking University, Beijing 100871, China

3.College of Chemistry and Molecular Engineering, State Key Laboratory of Rare Earth Materials Chemistry and Applications & PKU-HKU Joint Laboratory on Rare Earth Materials and Bioinorganic Chemistry, Peking University, Beijing 100871, China

4.Department of Chemistry, Hebei Normal University, Hebei 050091, China

5.College of Chemistry and Molecular Engineering, State Key Laboratory of Rare Earth Materials Chemistry and Applications & PKU-HKU Joint Laboratory on Rare Earth Materials and Bioinorganic Chemistry, Peking University, Beijing 100871, China

基金项目: the Research Fund for the Doctoral Program of Higher Education of China(20010001020) 教育部优秀青年教师资助计划国家自然科学基金(20023005) 国家自然科学基金(20125104) and NSFC (20023005) 国家重点基础研究发展计划(973计划)(G1998061305)

Syntheses and Structures of Two Heteronuclear Complexes with Glycine {[CuEr(Gly)5(H2O)2](ClO4)5·H2O}n and {[Cu2Gd2(Gly)10(H2O)4](ClO4)10·4H2O}n

Keywords： rare earths

Two one-dimensional heterometallic coordination polymers {[CuEr(Gly)5(H2O)2](ClO4)5*H2O}n (1) and {[Cu2Gd2(Gly)10(H2O)4](ClO4)10*4H2O}n (2) (Gly = glycine) were synthesized and structurally and characterized magnetically. Complex 1 crystallizes in a triclinic space group of P1 with a=1.1769(2) nm, b=1.2289(3) nm, c= 1.4452(3) nm, α= 89.90(3)°, β= 71.88(3)°, γ= 62.15(3)°, and Z=2. The carboxyl groups of glycine molecules take two coordination modes. The first one acts as a bidentate bridging ligand only. The second is a tridentate bridge that coordinates to three different metal ions. Each erbium ion is eight coordinated, taking a distorted square antiprism arrangement. The copper ion has a square pyramidal coordination polyhedron. The topological structure of complex 2 is similar to complex 1, but there are some disparities in the bond lengths and bond angles. It is also triclinic space group of P1 with a= 1.2479(3) nm, b= 1.4489(3) nm, c=2.0885(4) nm, α= 109.56(3)°, β= 93.75(3)°, γ= 93.54(3)°, and Z=2. Variable temperature susceptibility measurements show that there is a weak ferromagnetic interaction between the Gd3+ and Cu2+ ions in complex 2.

参考文献

[1]	Blake A J;Cherepeno Y A;Duntop A A et al.Synthesis crystal structure and thermal decomposition studies of a series of copper-lanthanide complexes of 6-methyl-2-pyrione[J].Journal of the Chemical Society Dalton Transactions,1994,18:2719.
[2]	Andruk M;Ramade I;Codjovi E et al.Crystal structure and magnetic properties of [Ln2Cu4] hexanuclear clusters (where Ln = trivalent lanthanide). Mechanism of Gd(Ⅲ)-Cu(Ⅱ) magnetic interaction[J].Journal of the American Chemical Society,1993(115):1822.
[3]	Georges R;Kahn O;Guilliou O .Theory of the magnetic properties of isotropic ladder-type double chains with classical spins at the bunch-upright intersections: application to Gd(Ⅲ)-Cu(Ⅱ) compounds[J].Physical Review B,1994,49:3235.
[4]	Andruh M;Bakalbassis E;Kahn O et al.Structure and spectroscopic and magnetic properties of rare earth metal(Ⅲ) derivatives with the 2-formyl-4-methyl-6-(N-(2-pyridylethyl)formimidoyl)phenol ligand[J].Inorganic Chemistry,1993(32):1616.
[5]	Benelli C;Caneschi A;Gatteschi D et al.Magnetic properties of tetranuclear complexes containing exchange coupled Ln2Cu2(Ln = Gd Dy) species[J].Journal of Magnetism and Magnetic Materials,1990(83):522.
[6]	Benelli C;Caneschi A;Gatteschi D et al.Synthesis crystal structure and magnetic properties of tetranuclear complexes containing exchange-coupled Ln2Cu2(Ln = Gd Dy) species[J].Inorganic Chemistry,1990(29):1750.
[7]	Yi T.;Li BG.;Gao S. .Edta-linked 4f-3d heterometallic two dimensional sheet in Ln(2)M(3)(edta)(3)(H2O)(11)center dot 12H(2)O (Ln = Nd, Gd; M = Mn,Co)[J].Polyhedron: The International Journal for Inorganic and Organometallic Chemistry,1998(13/14):2243-2248.
[8]	Liu Q D;Li J R;Ma B Q et al.Nitrilotriacetate bridged 3d-4f heteronuclear complex:synthesis and crystal structure of {[GdCu(NTA)(H2O)6Cl]ClO4*H2O}n[J].Journal of Rare Earths,2000(18):161.
[9]	Liu QD.;Li JR.;Zhon QZ.;Yu KB.;Ma BQ.;Zhang SW.;Zhang XX. Jin TZ.;Gao S. .Structures and magnetism of two novel heptanuclear lanthanide-centered trigonal prismatic clusters: [LnCu(6)(mu(3)-OH)(3)(HL)(2)(L)(4)](ClO4)(2)center dot 25H(2)O (Ln = La, Tb; H2L = iminodiacetic acid)[J].Inorganic Chemistry: A Research Journal that Includes Bioinorganic, Catalytic, Organometallic, Solid-State, and Synthetic Chemistry and Reaction Dynamics,2000(12):2488-2492.
[10]	WANG R Y;Gao F;Jin T Z .Synthesis and crystal structure of a heteronuclear of copper and yttrium complex with glycine[J].Journal of Rare Earths,1997,15(06)
[11]	Gao F.;Jin TZ.;Xu GX.;Zhou ZY.;Zhou XG.;Wang RY. .SYNTHESIS AND CRYSTAL STRUCTURE OF A HETERONUCLEAR COPPER AND YTTRIUM COMPLEX WITH ALANINE - [CUY(ALA)(4)(H2O)(5)](CLO4)(5)CENTER-DOT-3H(2)O[J].Polyhedron: The International Journal for Inorganic and Organometallic Chemistry,1997(8):1357-1360.
[12]	Yasuhiko Y;Satoshi I;Akihito Y et al.Structure of the icosahedral samarrim cluster formed by bis(L-prolinato)nickel(Ⅱ) ligands[J].Chemical Communications,1997,7(07):711.

上一张下一张

计量

下载量()
访问量()

作者相关

文章评分

您的评分：
1

0%
2

0%
3

0%
4

0%
5

0%

材料期刊网

Syntheses and Structures of Two Heteronuclear Complexes with Glycine {[CuEr(Gly)5(H2O)2](ClO4)5·H2O}n and {[Cu2Gd2(Gly)10(H2O)4](ClO4)10·4H2O}n

参考文献