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A terbium benzoate complex with 1,10-phenanthroline [Tb(ba)3(phen)]2, where ba = benzoate and phen = 1,10-phenanthroline, has been prepared and structurally characterized by X-ray diffraction. It crystallizes in triclinic, space group P1 with a = 10.7881(5), b = 11.9262(6), c = 12.4249(6) ?, a = 105.1260(10), β = 93.6010(10), ? = 113.3350(10)o, (C33H23N2O6Tb)2, Mr = 1404.90, V = 1391.87(12) ?3, Z = 1, Dc = 1.676 g/cm3, μ(MoKα) = 2.590 mm-1, F(000) = 696, the final R = 0.0277 and wR = 0.0670 for 6085 observed reflections with I > 2σ(I). The crystal consists of binuclear molecules of the title compound. Each Tb3+ ion is nine-coordinated to one 1,10-phenan- throline molecule, one bidentate carboxylate group and four bridging carboxylate groups. The carboxylate groups are bonded to the terbium ion in three modes: the chelating bidentate, bridging bidentate and bridging-chelating tridentates. Excitation and luminescence data observed at room temperature show that the title complex emits very intensive green fluorescence under ultraviolet light. The results of thermal analysis indicate that the complex [Tb(ba)3phen]2 is very thermal stable.
A terbium benzoate complex with 1,10-phenanthroline [Tb (ba) 3 (phen)] 2, where ba = benzoate and phen = 1,10-phenanthroline, has been prepared and structurally characterized by X-ray diffraction. triclinic, space group P1 with a = 10.7881 (5), b = 11.9262 (6), c = 12.4249 (6) ?, a = 105.1260 (10),? = 93.6010 (10) (C33H23N2O6Tb) 2, Mr = 1404.90, V = 1391.87 (12)? 3, Z = 1, Dc = 1.676 g / cm3, μ (MoKα) = 2.590 mm-1, F 0.0277 and wR = 0.0670 for 6085 observed reflections with I> 2σ (I). The crystal consists of binuclear molecules of the title compound. Each Tb3 + ion is nine- coordinated to one 1,10-phenan- throline molecule, one bidentate carboxylate group and four bridging carboxylate groups. The carboxylate groups are bonded to the terbium ion in three modes: the chelating bidentate, bridging bidentate and bridging-chelating tridentates. Excitation and luminescence data observed at room temperature show that the title com plex emits very intensive green fluorescence under ultraviolet light. The results of thermal analysis indicate that the complex [Tb (ba) 3phen] 2 is very thermal stable.