Formation and crystal and molecular structures of dioxouranium(VI) complexes containing bidentate carbamoylmethylphosphinate and phosphine oxide ligands
作者:L.J. Caudle、E.N. Duesler、R.T. Paine
DOI:10.1016/s0020-1693(00)84562-4
日期:1985.9
the complex crystallizes in the monoclinic space group P 2 1 / n with a = 11.155(3) A, b = 11.265(2) A, c = 20.317(5) A, β = 107.44(2)°, Z = 4, V = 2435.5(8) A 3 and ϱ calcd = 1.93 g×cm −3 . The structure was solved by heavy atom methods and blocked least-squares refinement converged with R F , = 0.035 and R wF = 0.029. The molecular structures contain linear UO2 2+ ions bonded to two bidentate nitrate
摘要配体(C 6 H 5)(C 2 H 5 O)P(O)CH 2 C(O)N(C 2 H 5)2(1)和(C 6 H 5)2 P(O)CH制备了2 C(O)N(C 2 H 5)2(2),并通过光谱法对其进行了表征,并形成了配合物UO 2(NO 3)2 [(C 6 H 5)(C 2 H 5 O )P(O)CH 2 C(O)N(C 2 H 5)2](3)和UO 2(NO 3)2 [(C 6 H 5)2 P(O)CH 2 C(O)N (C 2 H 5)2](4),已经通过元素分析和光谱学方法进行了分离和表征。在20°C时完成3的单晶X射线衍射分析,该复合物在单斜空间群P 2 1 / n中结晶,其中a = 13.141(3)A,b = 13.281(2)A,c = 13.918(3)»,β= 116.79(2)°,Z = 4,V = 2168.5(8)A 3,ϱ calcd = 2.07g×cm