Holakovský Roman, Pojarová Michaela, Dušek Michal, Cejka Jan, Císařová Ivana
Acta Crystallogr Sect E Struct Rep Online. 2011 Jan 15;67(Pt 2):o384-5. doi: 10.1107/S1600536810052657.
The title compound, C(34)H(22)Cl(4)N(4)O(2)·2CHCl(3), is a new urea based on the 1,1'-binaphthalene skeleton, which crystallizes with two mol-ecules of binaphthalene and four mol-ecules of chloro-form in the unit cell. The chloro-form solvent mol-ecules do not participate in non-covalent inter-actions and therefore, can be found in several positions. The binaphthalene mol-ecules are connected via a system of N-H⋯O hydrogen bonds between the ureido units. C-H⋯O inter-actions also occur. In contrast to unsubstituted urea, where mol-ecules form squares in crystals, the bulky substituents disturb this arrangement and three ureido groups form infinite chains, while the fourth inter-acts with a neighbouring binaphthalene ring via an N-H⋯π inter-action. The solvent molecules are disordered with occupancy ratios of 0.60:0.40, 0.58:0.42, 0.50:0.50 and 0.77:0.23.
标题化合物C(34)H(22)Cl(4)N(4)O(2)·2CHCl(3)是一种基于1,1'-联萘骨架的新型脲，其在晶胞中与两个联萘分子和四个氯仿分子一起结晶。氯仿溶剂分子不参与非共价相互作用，因此可在多个位置找到。联萘分子通过脲基单元之间的N-H⋯O氢键体系相连。还存在C-H⋯O相互作用。与未取代的脲不同，在未取代的脲中分子在晶体中形成正方形，庞大的取代基扰乱了这种排列，三个脲基形成无限链，而第四个脲基通过N-H⋯π相互作用与相邻的联萘环相互作用。溶剂分子无序，占有率比为0.60:0.40、0.58:0.42、0.50:0.50和0.77:0.23。
