Studies on Rare Earth Complexes of Quaternary Ammonium Salt(Ⅵ)--Synthesis,Characterization and Crystal Structure of Tetrabutylammonium Tetranitrato Diisothiocyanato Neodymate

Chem. J. Chinese Universities ›› 1995, Vol. 16 ›› Issue (7): 997.

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Studies on Rare Earth Complexes of Quaternary Ammonium Salt(Ⅵ)--Synthesis,Characterization and Crystal Structure of Tetrabutylammonium Tetranitrato Diisothiocyanato Neodymate

ZHANG Ya-Wen¹, YAN Chun-Hua¹, LI Biao-Guo¹, HUANG Chun-Hui¹, XU Guang-Xian¹, MA Zhe-Sheng², TANG Chun-Hong²

1. State Key Lab. of Rare Earth Materials Chem. & Appl., Peking University, Beijing, 100871;
2. Laboratory of Crystal Structure and Chemistry of Geology University of China, Beijing

Received:1994-10-05 Revised:1994-12-26 Online:1995-07-24 Published:1995-07-24

Abstract

Abstract: A new type mixed ligand title complex was synthesized. The general formula was C₅₀H₁₀₈NdN₉O₁₂S₂. The infrared spectrum and thermal analysis of the complex were studied. Its molar conductivity shows it to be 3 : 1 type electrolyte and the ionic crystal. The single crystal structure has been determined by a four-circle X-ray diffractometer. The crystal is monoclinic, space group Cc, with unit cell dimensions: a=1. 6578 nm, b=1. 8108 nm, c=2.3962nm, β=91.58°, Z=4. Neodymium is coordinated by 8 oxygen atoms of four biden-tate, nitrate groups, and 2 nitrogen atoms of two thiocyanates, so the coordination number is 10. The average bond length of Nd-O is 0. 2567 nm; the average bond length of Nd-N is 0. 2534 nm. Polyhedron of Nd³⁺ion is a twist 4,4-bicapped square antiprism.

Key words: Rare earth mixed ligand complex, Structure, Tetrabutylammonium tetranitrato diisothiocyanato neodymate

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ZHANG Ya-Wen, YAN Chun-Hua, LI Biao-Guo, HUANG Chun-Hui, XU Guang-Xian, MA Zhe-Sheng, TANG Chun-Hong. Studies on Rare Earth Complexes of Quaternary Ammonium Salt(Ⅵ)--Synthesis,Characterization and Crystal Structure of Tetrabutylammonium Tetranitrato Diisothiocyanato Neodymate[J]. Chem. J. Chinese Universities, 1995, 16(7): 997.

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Studies on Rare Earth Complexes of Quaternary Ammonium Salt(Ⅵ)--Synthesis,Characterization and Crystal Structure of Tetrabutylammonium Tetranitrato Diisothiocyanato Neodymate

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