Download full text in PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... The synthesis of a family of monotopic and ditopic ligands possessing a [12]aneN 3 synthon and different spacers is described. The characterization of two of them by X-ray diffraction is also reported. ... The synthesis of a family of monotopic and ditopic ligands possessing a [12] ...