Crystal structure and fluorescence spectrum of the complex [Eu(Ⅲ)(TTA)_3(phen)]

• 作 者: 胡茂林 黄振炎 程亚倩 王舜 林娟娟 胡燚 徐端钧 徐元植
• 机 构: Department of Chemistry, Wenzhou Teachers College, Wenzhou, Zhejiang 325003,Department of Chemistry,
• 出 处: Chinese Journal of Chemistry
• 发表日期: 1999年06期
• 关键词: triclinic distorted luminescent dimensions Eu TTA phen encapsulated bidentate re

The title complex Eu(Ⅲ)(TTA)3(phen) (where TTA= thenoyltrifluoroacetone monoanion; phen = 1,10-phenanthroline) has been synthesized in mixed solvents of acetone and ethanol (1:1 volume ratio) and its crystal structure has been determined by X-ray diffraction. The complex crystals are triclinic, space group P1(#2) with cell dimensions of a = 1.3241 (2) nm, 6 = 1.5278(4) nm, c = 0.9755(3) nm, α = 92.49 (2)°, β=102.57(2)°, γ = 91.62(2)°, V=1.9268(8) nm3, Z = 2, μ(Mo Kα) = 18.77 cm-1, Dx = 1.720 g/cm3. The coordination geometry of Eu atom is a distorted square antiprism, and the encapsulated structure that can meet the structural requirement of the typical europium luminescent sensor. The fluorescence spectrum suggests that the complex is a strong photoluminescent material.

The title complex Eu (III) (TTA) 3 (phen) (where TTA = thenoyltrifluoroacetone monoanion; phen = 1, 10-phenanthroline) has been synthesized in mixed solvents of acetone and ethanol The complex crystals are triclinic, space group P1 (# 2) with cell dimensions of a = 1.3241 (2) nm, 6 = 1.5278 (4) nm, c = 0.9755 (3) nm, α = 92.49 (2) °, β = 102.57 (2) °, γ = 91.62 (2) °, V = 1.9268 (8) nm3, Z = 2, μ (Mo Kα) = 18.77 cm -1, Dx = 1.720 g / cm3. The coordination geometry of Eu atom is a distorted square antiprism, and the encapsulated structure that can meet the structural requirement of the typical europium luminescent sensor. The fluorescence spectrum suggests that the complex is a strong photoluminescent material.