2,12-Dichloro-10,20-diphenyl-5,7,15,17-tetrahydro-6<i>H</i>,16<i>H</i>-dibenzo[<i>d</i>,<i>l</i>][1,9,2,6,10,14]dioxotetraazacyclohexadecine-6,16-dione dioxane solvate as a potential macrocyclic hexadentate ligand
作者:Victor N. Khrustalev、Eugene A. Komissarov、Oleg V. Kulikov
DOI:10.1107/s0108270107021415
日期:2007.7.15
The macrocyclic title compound crystallizes as a dioxane solvate, C30H22Cl2N4O4 center dot C4H8O2, with two independent formula units in the unit cell. The observed syn conformation is controlled by both intramolecular N-H center dot center dot center dot O hydrogen bonds and intermolecular C-H center dot center dot center dot pi interactions. The relative macrocyclic inner bore is estimated to be 4.19 angstrom. In the crystal structure, molecules form dimers via intermolecular C-H center dot center dot center dot pi interactions, and these dimers are, in turn, linked to form columns along the a axis by intermolecular C-H center dot center dot center dot O hydrogen bonds. Both X-ray diffraction analysis and density functional theory (DFT) calculations reveal that the macrocycle possesses very high flexibility. This property, as well as the presence of six donor atoms accessible for coordination, makes the title macrocycle a very promising ligand for complexation with the majority of transition metals.
Lattmann, Eric; Lattmann, Pornthip; Boonprakob, Yodchai, Arzneimittel-Forschung/Drug Research, 2009, vol. 59, # 2, p. 61 - 71
作者:Lattmann, Eric、Lattmann, Pornthip、Boonprakob, Yodchai、Airarat, Wanchai、Singh, Harjit、Offel, Michael、Sattayasai, Jintana
DOI:——
日期:——