Preparation of ternary platinum(II) complexes with N-(omega-phenylalkyl)-1,2-ethanediamine and 2,2'-dipyridine and the effect of the methylene chain length of the N-(omega-phenylalkyl)-1,2-ethanediamine in the complexes on intermolecular interactions with various arylsulfonates

A series of ternary complexes comprised of platinum(II), 2,2'-dipyridine, and N-(omega-phenylalkyl)-1,2-ethanediamine was prepared by varying the number (n) of methylene chain carbons between the phenyl group and one of the amino groups of 1,2-ethanediamine. NMR measurements indicated that intramolecular stacking occurred for n=1 and intermolecular stacking occurred for n=3 for several of the aryl sulfonates.