Mise en évidence de l'entité Sb2F4O dans un composé d'addition moléculaire avec l'urée étude structurale de [(NH2)2CO]2,Sb2F4O
作者:M. Bourgault、R. Fourcade、G. Mascherpa
DOI:10.1016/0022-4596(81)90159-6
日期:1981.2
The X-ray structure determination of [NH2)2CO]2 · Sb2F4O shows the existence of linked units urea-Sb2F4O which show the Sb2F4O entity, not yet known. Crystal structure was solved with a singlecrystal X-ray diffraction study (the final R value is 0.046). The Sb2F4O unit is composed of a symmetric and short SbOSb bridge, and of four fluorine atoms, two being bonded to each antimony atom and situated
[NH 2)2 CO] 2 ·Sb 2 F 4 O的X射线结构测定表明存在连接单元脲-Sb 2 F 4 O,其表示Sb 2 F 4 O实体,尚不清楚。晶体结构通过单晶X射线衍射研究解决(最终R值为0.046)。Sb 2 F 4 O单元由对称且短的SbOSb桥和四个氟原子组成,两个氟原子与每个锑原子键合且相对于SbOSb桥处于反位。桥键强度分配给pπdπ重叠。