Crystal Structure and Luminescence Spectra of Binuclear Europium m-Methylbenzoate Ternary Complex with 1,10-phenanthroline, [Eu(m-MBA)3PHEN](H2O)2

Chem. J. Chinese Universities ›› 1993, Vol. 14 ›› Issue (9): 1195.

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Crystal Structure and Luminescence Spectra of Binuclear Europium m-Methylbenzoate Ternary Complex with 1,10-phenanthroline, [Eu(m-MBA)₃PHEN](H₂O)₂

JIN Lin-Pei¹, WANG Rui-Fen¹, WANG Ming-Zhao¹, CAI Guan-Liang², LIU Shi-Xiong², HUANG Jin-Ling²

1. Department of Chemistry, Beijing, Normal University, Beijing, 100875;
2. Department of Chemistry, Fuzhou University

Received:1993-02-23 Revised:1993-05-05 Online:1993-09-24 Published:1993-09-24

Abstract

Abstract: The crystal structure of the title compound has been solved by the heavy-atom, direct method, and by using the three dimensional Patterson-Fourier synthesis.The crystallographic data are:M=1511.22, space group Cc, a=l.5955(6) nm, b=1.8508(6) nm, c=2.2595(9) nm, β = 97.79(4)°, V = 6.610(4) nm³, Z = 4, F(000) = 3040, D_x=1.52 g/cm³, μ=19.47 cm^-1, and R = 0.043 for 7316 observed reflections.Both europium ions in the binuclear complex are octa-coordinated with six oxygen atoms of m-methylbenzoates and two nitrogen atoms of 1, 10-phenathroline, to give the square antiprisms with C₁ site symmetry for the Eu(Ⅲ) ions.The high resolution excitation spectrum at 77Kindicates that only one Eu(Ⅲ) site exists in the complex.⁵D₀→⁷F_J_(J=0-2) transition fluorescence spectra confirm the C₁ symmetry of the Eu(Ⅲ) site.

Key words: Europium, Ternary complex, Crystal structure, Luminescence spectra

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JIN Lin-Pei, WANG Rui-Fen, WANG Ming-Zhao, CAI Guan-Liang, LIU Shi-Xiong, HUANG Jin-Ling. Crystal Structure and Luminescence Spectra of Binuclear Europium m-Methylbenzoate Ternary Complex with 1,10-phenanthroline, [Eu(m-MBA)₃PHEN](H₂O)₂[J]. Chem. J. Chinese Universities, 1993, 14(9): 1195.

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Crystal Structure and Luminescence Spectra of Binuclear Europium m-Methylbenzoate Ternary Complex with 1,10-phenanthroline, [Eu(m-MBA)₃PHEN](H₂O)₂

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