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《Journal of Wuhan University(Natural Science Edition)》 2015-01
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Hydrothermal Synthesis,Crystal Structure and Thermal Stability Properties of Ho(Ⅲ) and Yb(Ⅲ) Complexes

ZHANG Yan;KE Ping;CAI Ping;LUO Wei;CHENG Gongzhen;College of Chemistry and Molecular Sciences,Wuhan University;  
Two novel Ho(Ⅲ)and Yb(Ⅲ)complexes 1 and2 based on 4-(1,8-naphthalimido)benzoic acid,holmiun nitrate and ytterbium nitrate have been synthesized by hydrothermal method.Single crystal X-ray diffraction studies show that the structure of complexes belongs to hexagonal system;the helical chains were formed by the metal ion and the oxygen atoms from carboxylic acid.The unit cell parameters of complex1 are as follows:a=b=1.783 30(17)nm,c=0.942 15(11)nm,α=β=90%,γ=120%,complex2 are as follows:a=b=1.780 39(8)nm,c=0.939 46(8)nm,α=β=90%,γ=120%.The thermal stability of the crystals show that the Ho(Ⅲ)and Yb(Ⅲ)complexes start to lose ligand at 589 ℃ and 582 ℃,respectively,when the crystal structure begins to collapse.
【Fund】: 国家自然科学基金(21101121);; 湖北省自然科学基金(2010CDB01301)资助项目
【CateGory Index】: O641.4
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