Aryldiazenido ruthenium(II) complexes. Structure and characterization of p-tolyldiazenido ruthenium(II) complexes with pyrazole and imidazole ligands

作者：Malecki J G^*; Gryca I; Penkala M

来源：Polyhedron, 2013, 51: 102-110.

DOI：10.1016/j.poly.2012.12.012

• Ruthenium p-tolyldiazenido complexes
• Pyrazole
• Imidazole
• X-ray
• Electronic structure
• Absorption and emission electronic spectra
• DFT

The p-tolyldiazenido ruthenium(II) complexes [RuCl3(PPh3)(2)(N2PhCH3)]center dot CH3OH (1), [RuCl3(PPh3) (N2PhCH3)(HPz)] (2) and [RuCl3(PPh3)(N2PhCH3)(Im)]center dot CH3OH (3) were synthesized and characterized by IR, H-1, C-13, P-31 NMR, electronic absorption and emission spectroscopy, and X-ray crystallography. In the molecular structure of complex (1) some pi-pi stacking interactions are observed, whereas in the structure of the imidazole complex (3) graph set analysis shows intermolecular hydrogen bonded rings. The electronic structures of the complexes were calculated by DFT based on their crystal structures. The spin-allowed singlet-singlet electronic transitions of the complexes were calculated by time-dependent DFT and the UV-Vis spectra have been discussed on this basis. The emission properties of the complexes were also studied.

• 出版日期2013-3-4