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首页> 外文期刊>Journal of rare earths >Synthesis and Characterization of Rare Earth Complexes with Phthalanilic Acids and Amino Acids
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Synthesis and Characterization of Rare Earth Complexes with Phthalanilic Acids and Amino Acids

机译:邻苯二酸和氨基酸稀土配合物的合成与表征

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The complexes with the genera formula REP_3A.H_2O[P=2-(COO)C_6H_4CONHC_6H_4X, X=2-Cl, 4-Br; A=Gly, Ala, Leu; RE=Pr~3+, Nd~3+] were synthesized characterized by elemental analysis, IR and reflectance electronic spectra and TG methods. The results show that rare earth ion in each complex is coordinated by three oxygen atoms. One is from the amid and the other two from the hydroxyl in the carboxylate and the ammoniated respectively, and each complex contains one coordinate water molecule. Condon parameters F_k, Lande parameters (ζ_4f), Nephelanxetic ratio (β), percentage convince parameter (δ) and bonding parameter (b~1/2) of the cheats were calculated from the reflectance electronic spectra, indicating certain covalent character in the metalligand bond. The apparent decompose activation energies were evaluated and the decompose mechanism were discussed.
机译:通式为REP_3A.H_2O [P = 2-(COO)C_6H_4CONHC_6H_4X,X = 2-Cl,4-Br的配合物; A = Gly,Ala,Leu;通过元素分析,红外光谱和反射电子光谱以及热重分析法合成了RE = Pr〜3 +,Nd〜3 +]。结果表明,每个配合物中的稀土离子均由三个氧原子配位。一种来自酰胺基,另一种来自羧酸盐中的羟基和被氨化,并且每个络合物均包含一个配位水分子。通过反射电子光谱计算出了该作弊的共轭参数F_k,兰德参数(ζ_4f),肾盂比(β),说服百分率参数(δ)和键合参数(b〜1/2),表明该金属配体具有一定的共价特性。键。评估了表观分解活化能,并讨论了分解机理。

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