Zinc(II) complexes of the encapsulating ligands 1-methyl-8-amino-3,13-dithia-6,10,16,19-tetraazabicyclo[6.6.6]icosane (AMN4S2sar) and 1-methyl-8-amino-3-thia-6,10,13,16,19-pentaazabicyclo[6.6.6]icosane (AMN5Ssar). X-ray structural characterization
作者:James I. Bruce、Therese M. Donlevy、Lawrence R. Gahan、Colin H.L. Kennard、Karl A. Byriel
DOI:10.1016/0277-5387(95)00221-d
日期:1996.1
The crystal structures of [Zn(AMN(4)S(2)sarH)](ClO4)(NO3)(2) . 2H(2)O(AMN(4)S(2)sar = 1-methyl-8-amino-3,13-dithia-6,10,16,19-tetraazabicyclo[6.6.6]icosane) and [Zn(AMN(5)Ssar)] (ClO4)(2) . 2H(2)O (AMN(5)Ssar = 1-methyl-8-amino-3-thia-6,10,13,16,19-pentazabicyclo[6.6.6] icosane) have been determined by X-ray diffraction methods. In each case the ligands effectively encapsulate the metal ion within a macrobicyclic cavity, a distorted octahedral environment resulting from both the-unsymmetrical nature of the mixed nitrogen and thioether donor atoms and the small size of the zinc(II) ion.