Metal complexes with sulfur-containing ligands
Masahiro Mikuriya and Makoto Handa
Kwansei Gakuin University and Shimane University
Abstract
Organic chelate ligands are useful to develop metal-organic systems. Especially N,N,S-tridentate thiolic ligands have a great affinity for many kinds of metal ions to form various metal complexes from mononuclear to polynuclear species. On the other hand, the corresponding N,N,O-tridentate alcholic ligands form dinuclear CuII species exclusively. We focused on these systems in the hope of obtaining new feature of metal thiolates, elucidating interesting crystal structures and spectral properties, although most thiolato complexes are diamagnetic. We obtained mononuclear and trinuclear CoIII species with 2-[(3-aminopropyl)amino]ethanethiol. The CoIII species reacted with oxygen to form the corresponding sulfinato CoIII species. Their conversion was monitored by UV-vis spectra and DFT calculations were performed for the thiolate and sulfinato complexes. We also obtained molybdenum complexes. We will discuss these features based on the crystal structures.
Keywords: metal complexes, thiolic ligand, cobalt complexes, molybdenum complexes
Topic: DV-Xa Method