Synthesis, photophysical properties and DNA binding studies of novel luminescent rhenium(I) complexes. X-Ray crystal structure of [Re(dppn)(CO)3(py)](OTf)

Two novel luminescent rhenium(I) complexes, [Re(dppz)(CO)3(py)](OTf)1 and [Re(dppn)(CO)3(py)](OTf)2 are synthesized and their photophysical properties studied; X-ray structural studies of 2 reveal a highly planar dppn ligand which may account for the interaction of 1 and 2 with double-stranded calf thymus DNA.