水热法镧-对苯二甲酸二元配合物的合成与表征

Synthesis and characterization of binary lanthanum complexes with terephthalic acid by hydrothermal method

利用元素分析(EA)、红外光谱(FTIR)、热分析(DSC-TGA)和扫描电镜(SEM)等分析手段对配合物的组成、尺寸和形貌进行分析与表征.采用水热法合成了树叶状的镧(La)-对苯二甲酸(1,4-bdc)二元配合物.结果表明,对苯二甲酸的羧基氧与La3+配位,树叶状配合物的组成为La2(1,4-bdc)2.3H2O,树叶状叶片厚度范围约为1～3μm.

The composition,size and morphology of the La2（1,4-bdc）2·3H2O were characterized by Elemental analysis（EA）,Fourier transform infrared spectrum（FTIR）,Thermal analysis（DSC-TGA） and scanning electron microscope（SEM）,respectively.The leaves shape of lanthanum binary complex of LaCl3·6H2O with terephthalic acid（1,4-benzenedicarboxylic acid,1,4-bdc） was synthesized by hydrothermal method.Results showed that the carboxylate oxygen atoms from terephthalic acid were coordinated with La3＋ ions.And the size range of the leaves shape micron complex was 1~3μm.