Structural studies on rare earth carboxylates--I. Studies on the crystal structure of tris(neopentan

来源 :Chinese Journal of Chemistry | 被引量 : 0次 | 上传用户:donny_zhu
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The title complex was synthesized and its structure was determined. The crystal is mon-oclinic with space group P2_1/n. Unit cell parameters are as follows: a=16.474(8), b=12.425(4),c=20.844(12), β=109.27(4)°, Z=4. In each dimer, the two Nd atoms are connected through twopairs of bridging neopentanoate anions. The two carboxyl groups in each pair are in oppositeposition to Nd atom which are coplanar with them and the two planes are perpendicular with eachother. In the complex each Nd atom is further coordinated with three neopentanoic acid moleculesand one monodentate neopentanoate anion. The central atom is octa-coordinated in a square-antiprism arrangement. The title complex was synthesized and its structure was determined. The crystal is mon-oclinic with space group P2_1 / n. Unit cell parameters are as follows: a = 16.474 (8), b = 12.425 ), β = 109.27 (4) °, Z = 4. In each dimer, the two Nd atoms are connected through twopairs of bridging neopentanoate anions. The two carboxyl groups in each pair are in oppositeposition to Nd atom which are coplanar with them and the two planes are perpendicular with eachother. In the complex each Nd atom is further coordinated with three neopentanoic acid molecules and one monodentate neopentanoate anion. The central atom is octa-coordinated in a square-antiprism arrangement.
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