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首页> 外文期刊>Spectrochimica acta, Part A. Molecular and biomolecular spectroscopy >ESR and optical study of Cu2+ doped calcium malonate dihydrate
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ESR and optical study of Cu2+ doped calcium malonate dihydrate

机译:铜离子掺杂的二水合丙二酸钙二水合物的ESR和光学研究

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摘要

The ESR study of CU2+ doped calcium malonate dihydrate has been done at room temperature. Four magnetically in-equivalent sites for Cu2+ have been observed. The spin-Hamiltonian parameters evaluated with the fitting of spectra to rhombic symmetry crystalline field are for Cu-2+ site (I): g(x) = 2.0963 +/- 0.0002, g(y) = 2.1316 +/- 0.0002, g(z) = 2.4137 +/- 0.0002, A(x) = (32 +/- 2) x 10(-4) cm(-1), A(y) =(34 +/- 2) x 10(-4) cm(-1), A(z) = (49 +/- 2) x 10(-4) cm(-1), for site (II): g(x) = 2.0668 +/- 0.0002, g(y) = 2.0800 +/- 0.0002, g(z) = 2.3561 +/- 0.0002, A(x) = (34 +/- 2) x 10(-4) cm(-1), A(y) = (36 +/- 2) x 10(-4) cm(-1), A(z) = (51 +/- 2) x 10(-4) cm(-1), for site (III): g(x)= 2 0438 +/- 0.0002, g(y) = 2.0623 +/- 0.0002, g(z) = 2.2821 +/- 0.0002, A(x) = (34 +/- 2) x 10(-4) cm(-1), A(y) (36 +/- 2) x 10(-4) cm(-1), A(z) = (53 +/- 2) x 10(-4) cm(-1) and for site (IV): g(x) = 2.0063 +/- 0.0002, gy = 2.0241 +/- 0.0002, g(z) = 2.2357 +/- 0.0002, A(x) = (35 +/- 2) x 10(-4) cm(-1), A(y) = (37 +/- 2) x 10(-4) cm(-1), A(z) = (54 +/- 2) x 10(-4) cm(-1). The ground state wave function of CU2+, has also been determined. The g-anisotropy has been estimated and compared with the experimental value. Further with the help of optical study the nature of bonding of metal ion with different ligands in the complex has been discussed. (c) 2006 Elsevier B.V. All rights reserved.
机译:室温下进行了CU2 +掺杂的丙二酸二水合钙盐的ESR研究。已经观察到四个Cu 2+的磁不等价位。通过光谱拟合菱形对称晶体场评估的自旋哈密顿参数是针对Cu-2 +位点(I):g(x)= 2.0963 +/- 0.0002,g(y)= 2.1316 +/- 0.0002,g (z)= 2.4137 +/- 0.0002,A(x)=(32 +/- 2)x 10(-4)cm(-1),A(y)=(34 +/- 2)x 10(- 4)cm(-1),A(z)=(49 +/- 2)x 10(-4)cm(-1),对于部位(II):g(x)= 2.0668 +/- 0.0002,g (y)= 2.0800 +/- 0.0002,g(z)= 2.3561 +/- 0.0002,A(x)=(34 +/- 2)x 10(-4)cm(-1),A(y)= (36 +/- 2)x 10(-4)cm(-1),A(z)=(51 +/- 2)x 10(-4)cm(-1),对于部位(III):g (x)= 2 0438 +/- 0.0002,g(y)= 2.0623 +/- 0.0002,g(z)= 2.2821 +/- 0.0002,A(x)=(34 +/- 2)x 10(-4) )cm(-1),A(y)(36 +/- 2)x 10(-4)cm(-1),A(z)=(53 +/- 2)x 10(-4)cm( -1)和网站(IV):g(x)= 2.0063 +/- 0.0002,gy = 2.0241 +/- 0.0002,g(z)= 2.2357 +/- 0.0002,A(x)=(35 +/- 2)x 10(-4)cm(-1),A(y)=(37 +/- 2)x 10(-4)cm(-1),A(z)=(54 +/- 2) x 10(-4)厘米(-1)。 CU2 +的基态波函数也已确定。估计了g各向异性并与实验值进行了比较。进一步借助于光学研究,已经讨论了金属离子与配合物中不同配体的键合性质。 (c)2006 Elsevier B.V.保留所有权利。

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