Some substituted urea complexes of thorium tetranitrate; crystal structure of tetra(nitrato-O,O′)bis(tetramethylurea-O)thorium(<scp>IV</scp>), [Th(NO<sub>3</sub>)<sub>4</sub>{OC(NMe<sub>2</sub>)<sub>2</sub>}<sub>2</sub>]
作者:Abdul Ghany M. Al-Daher、Kenneth W. Bagnall、Eleonora Forsellini、Franco Benetollo、Gabriella Bombieri
DOI:10.1039/dt9860000615
日期:——
The complexes Th(NO3)4·xL [x= 2, L =(Me2N)2CO (tmu), (MePhN)2CO, or (Bui2N)(Me2N)CO; x= 2.67, L = tmu or (cyclo-C6H11NH)2CO] have been prepared and their i.r. and Raman spectra are reported. The crystal structure of [Th(NO3)4(tmu)2] has been determined from three-dimensional X-ray diffaction data. The compound crystallises in space group P21/a, with a= 19.523(2), b= 12.209(1), c= 10.026(1)Å, β= 99
Th(NO 3)4 · x L [ x = 2,L =(Me 2 N)2 CO(tmu),(MePhN)2 CO,或(Bu i 2 N)(Me 2 N)CO; 已经制备了x= 2.67,L = tmu或(环-C 6 H 11 NH)2 CO],并报道了它们的ir和拉曼光谱。由三维X射线衍射数据确定了[Th(NO 3)4(tmu)2 ]的晶体结构。该化合物在空间群P 2 1中结晶/ a,其中a = 19.523(2),b = 12.209(1),c = 10.026(1)Å,β= 99.4(1)°,Z = 4。基于2 537次反射的全矩阵最小二乘优化得到了最终的R值R = 0.032和R '= 0.037。关于th的配合最好描述为八面体,其中两个tmu分子阱和四个双齿硝酸盐基团占据赤道位置。