中文摘要：

以4-（1,8-萘二甲酰亚胺基）苯甲酸配体及硝酸钬和硝酸镱为原料,采用水热法合成了Ho（Ⅲ）和Yb（Ⅲ）两种配合物.经单晶X射线衍射分析,两个配合物均属六方晶系,金属离子与羧酸中的氧原子桥连成螺旋链状结构.配合物1的晶胞参数：a=b=1.783 30（17）nm,c=0.942 15（11）nm,α=β=90%,γ=120%;配合物2的晶胞参数：a=b=1.780 39（8）nm,c=0.939 46（8）nm,α=β=90%,γ=120%.晶体的热稳定性研究结果表明：Ho（Ⅲ）和Yb（Ⅲ）配合物晶体分别在589℃和582℃时开始失去配体分子,晶体结构开始坍塌.

英文摘要：

Two novel Ho（Ⅲ） and Yb（Ⅲ） complexes 1 and 2 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 complex 1 are as follows： a=b= 1. 783 30（17） nm, c=0. 942 15（11） nm,α=β=90°,γ=120°, complex 2 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.