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Syntheses aod Crystal Structures of Rare Earth Complexes with Adamantanecarboxylic Acid, [LnL_3(HL)(H_2O)]_2·2EtOH·2H_2O (Ln=Nd (1), La (2))
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作者 Zhu Zhili Feng Yunlong Lin Hong 《Journal of Rare Earths》 SCIE EI CAS CSCD 2005年第5期647-647,共1页
The title complexes (LnL3 (HL) (H2O) ]2· 2EtOH·2H2O (Ln= Nd (1), La (2), HL=adamantanecarboxylic acid) were prepared and determined by single-crystal X-ray diffraction. Both complexes crystallize ... The title complexes (LnL3 (HL) (H2O) ]2· 2EtOH·2H2O (Ln= Nd (1), La (2), HL=adamantanecarboxylic acid) were prepared and determined by single-crystal X-ray diffraction. Both complexes crystallize in triclinic system with space group P 1^-, cell parameters are: complex (1) a = 1.0556(2) nm, b =1.4913(3) nm, c = 1.4920(3) nm, a = 106.26 (3)°, β=93.51(3)°, γ=97.23(3)°, V=2.2253 (5) nm^3, Dcal=1.409 g · cm^-3, Z = I , F ( 000 ) = 990, μ(Mo Kα) = 1. 225 mm^-1, M, = 1884.50; complex (2) a = 1.0453(2) nm, b = 1.4971(3)nm, c = 1.5052(3) nm, α = 106.07(3)°, β =93.58 (3)°, γ=97.56(3)°, V=2.2391(5)nm^3, Dcal= 1.397 g·cm^-3, Z = 1, F(000) =984, μ(Mo Kα) = 1.015 mm^-1, Mr= 1877.88. The final R and wR are 0. 0396 and 0. 1062 for 8589 (1 ≥ 2σ (I)) observed reflections for complex (1), 0.0505 and 0. 1344 for 8417 ( 1 ≥ 2σ (1) ) observed reflections for complex (2), respectively. The crystals are consisted of a binuelear molecule. The coordination geometry of the Ln( Ⅲ ) ion can be described as trieapped trigonal prism. 展开更多
关键词 Nd( Ⅲ) complex Nd( complex adamantanecarboxylic acid crystal structure rare earths
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