Citation: Hong Ye SUN, Ming Jie ZHANG, Chun Hui HUANG, Guang Xian XU, Zhong Sheng JIN, Shong Chun JIN. HETERONUCLEAR COMPLEX CONTAINING COPPER-LANTHANIDE ARRAYS:THE SYNTHESIS AND CRYSTAL STRUCTURE OF Ln₂Cu₄L₈ (HL)₄(OH)₂(CIO₄)_{4_{(H₂O)₁₀·2CH₃COCH₃ (Ln=Tb (1), Y (2); HL=2-Pyridone C₅H₅NO)[J]. Chinese Chemical Letters,
;1993, 4(7): 649-652.}} shu

HETERONUCLEAR COMPLEX CONTAINING COPPER-LANTHANIDE ARRAYS:THE SYNTHESIS AND CRYSTAL STRUCTURE OF Ln₂Cu₄L₈ (HL)₄(OH)₂(CIO₄)_{4_{(H₂O)₁₀·2CH₃COCH₃ (Ln=Tb (1), Y (2); HL=2-Pyridone C₅H₅NO)}}

a Research Center of Rare Earth Chemistry, Peking University, Beijing 100871 China;
b Changchun Institute of Applied Chemistry Academia Sinica Changchun 130022, China

Received Date: 6 January 1993

Fund Project: Project supported by China National Climbing plan and National Nature Science Foundation

Reaction of 2-pyridone, copper acetate and terbium (or yttrium) perchlorate in acetone with the mole ratio 6:2:1 results in the formation of heteronuclear complex Ln₂Cu<、sub>4L₈ (HL)₄ (OH)₂ (ClO₄)₄ (H₂0)₁₀ 2CH₃COCH₃(Ln=Tb (1), Y (2)).By recrystallizing (1) in CHCl₃ single crystals were obtained and the structure was determined by four-circle diffractometer.Data showed that the crystal is in space group C2/m with a=27.454(9)Å, b=13, 608Å, c=30.556(11)Å, β=99.89(3)°, v=11245.7(7.5)Å³.The structure was solved by a combination of Patterson method and Fourier technique.The final R value is 0.103.In the structure, four copper and two terbium ions are bridged by 2-pyridone anions to form an essentially octahedral Cu₄Tb₂ core.The terbium atoms are each eight-coordinate and the copper atoms are five-coordinate.
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