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对甲苯磺酰β-丙氨酸稀土(La,Ho)配合物的合成及晶体结构

Syntheses and Crystal Structures of Rare Earth (La, Ho) Complexes with N-p-Tolysulfonyl-β-Alanine
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摘要 合成了LaⅢ和HoⅢ离子与对甲苯磺酰β-丙氨酸的配合物,并进行了元素分析、红外等表征,测定了两个配合物的晶体结构。配合物组成为[Ln2(Ts-β-AlaH)6(H2O)4]n·4nH2O(Ln=La(1),Ho(2),Ts-β-AlaH=N-对甲苯磺酰β-丙氨酸),配合物均属单斜晶系,P21/n空间群,晶胞参数:配合物(1)a=0.9563(2)nm,b=1.9113(3)nm,c=2.2933(4)nm,β=100.04(2)°,Z=4,Mr=937.77,Dc=1.509 kg·m～3,F(000)=1912,R1=0.0367,wR2=0.0944;配合物(2)a=0.9545(2)nm,b=1.8971(4)nm,c=2.2930(6)nm,β=100.19(2)°,Z=4,Mr=963.79,Dc=1.566 kg·m～3,F(000)=1952,R1=0.0363,wR2=0.0991.配合物(1)和(2)均为一维链状结构,但链中羧基桥连方式不同;同时两个金属离子一个是9配位,一个是8配位。 Two rare earth complexes of N-p-tolysul-fonyl- β-Alanine with the formula of [Ln2(Ts-β-AlaH)6 (H2O)4]n·4nH2O (where Ln = La(1), Ho(2), Ts-β-AlaH = p-tolysulfonyl-β-Alanine) were synthesized and characterized by elemental analysis, IR and X-ray diffraction. The compounds crystallize in monoclinic system with P21/n space group. Crystallographic data: (1)a =0.9563(2) nm, b = 1.9113(3) nm, c = 2.2933(4) nm, β = 100.04(2)°, Z = 4, Mr = 937.77, Dc = 1.509 kg·m-3, F(000) = 1912, R1 = 0.0367, wR2 = 0.0944; (2) a =0.9545(2) nm, 6 = 1.8971(4) nm, c =2.2930(6) nm, β = 100.19 (2)°, Z=4, Mr = 963.79, Dc = 1.566 kg·m-3, F (000) = 1952, R1 = 0.0363, wR2 = 0.0991. The two complexes are one-dimensional chains structures. The modes of bridging carboxylate are different. The coordination number of the La3 + ion is nine and that of the Ho3+ ion is eight.
作者 马录芳 王建革 王利亚 梁福沛 张漫波
机构地区 洛阳师范学院化学系 广西师范大学化学系
出处 《中国稀土学报》 CAS CSCD 北大核心 2004年第4期438-443,共6页 Journal of the Chinese Society of Rare Earths
基金 河南省自然科学基金资助项目(0311021200)
关键词 对甲苯磺酰β-丙氨酸 晶体结构 稀土配合物 N-p-tolysulfonyl-β-Alanine crystal structure rare earth complexes
分类号 O614 [理学—无机化学]
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参考文献12

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中国稀土学报
2004年 第4期

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