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合成了二(三苯基氧膦)合硝酸钕络合物,通过元素分析及氢核磁共振,确定其化学式为:Nd(NO_3)_3·2Ph_3P=O·C_2H_5OH。该化合物的晶体属单斜晶系,空间群为P21/n。晶胞参数如下: a=17.212(4)(?) v=4026(2)(?)~3 b=10.900(3)(?) F(000)=1836e c=22.296(8)(?) d实验=1.543g/cm~3 β=105.75(2)° d计算=1.540g/cm~3 Z=4 钕与九个氧原子配位,分子具有近似的C_S对称性。平均钕—氧键长为2.484(?)。Nd-O_P键显著小于此平均值,而Nd-0(硝酸根)键长都大于此平均值。
Synthesis of bis (triphenylphosphine oxide) neodymium nitrate complex, by elemental analysis and hydrogen nuclear magnetic resonance, to determine the chemical formula: Nd (NO_3) _3 · 2Ph_3P = O · C_2H_5OH. The crystal of this compound is monoclinic with space group P21 / n. The unit cell parameters are as follows: a = 17.212 (4) (?) V = 4026 (2) (?) ~ 3 b = 10.900 (?) F (000) = 1836e c = 22.296 (8) Experiment = 1.543g / cm ~ 3 β = 105.75 (2) ° d Calculation = 1.540g / cm ~ 3 Z = 4 Neodymium coordinates with nine oxygen atoms and the molecule has approximate C_S symmetry. The average neodymium-oxygen bond length is 2.484 (?). The Nd-O_P bond was significantly less than this average and the Nd-0 (nitrate) bond length was greater than this average.