Abstract：A novel lanthanide 2-hydroxynicotinic acid coordination polymer 1 {[LaL(HL)(H2O)3]1/3(SO4)2/3(H3O)2H2O}(H2L=2-hydroxynicotinic acid) has been synthesized under hydrothermal condition and characterized by crystal X-ray diffraction, IR, UV, TGA, two-dimensional infrared (2D IR) correlation spectroscopy with magnetic and thermal perturbation. In 1，La ions are connected by 2-hydroxynicotinic acid through both carboxylate oxygen atoms and oxygen atoms from hydroxyl group in pyridine to generate a 2D layer in the ab plane, these layers are further connected by weak interactions to form a 3D framework along c axis. The response of out-of-plane bending vibrations of N—H and C—H are remarkable in the 2D IR correlation spectra under magnetic perturbation, this may attributes to the inducement of π-electron cloud deformation under magnetic perturbation, ν4 vibrations from SO2-4 was also sensitive to magnetic perturbation. In addition, stretching vibrations from N—H are sensitive to thermal perturbation.
梅洪鑫，李光满，邓 松，孙燕琼*，陈义平，张汉辉*. 一种新颖的稀土-2-羟基烟酸的配合物的结构和光谱性质研究[J]. 光谱学与光谱分析, 2012, 32(01): 166-170.
MEI Hong-xin, LI Guang-man, DENG Song, SUN Yan-qiong*, CHEN Yi-ping, ZHANG Han-hui*. Structural and Spectral Study of a Novel Lanthanide 2-hydroxynicotinic Acid Coordination Polymer. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2012, 32(01): 166-170.
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