A complete series of tricarbonylhalidorhenium(I) complexes (abpy)Re(CO)3(Hal), Hal=F, Cl, Br, I; abpy=2,2′-azobispyridine: Structures, spectroelectrochemistry and EPR of reduced forms

Structure, electrochemistry, spectroscopy, and magnetic resonance, including high-field EPR, of {(μ-abpy)[Re(CO)3X]2}o/•−, where abpy=2,2′-azobispyridine and X=F, Cl, Br, I

“…The involvement of intermediates containing the radical anion (N-N) À in both the MLCT excited states, [(N-N) À Re II (CO) 3 X] * [1,2], and in the electrocatalytic cycles [3,6] has prompted studies of the electrochemistry, spectroscopy [7] and spectroelectrochemistry (IR, UV-VIS, EPR) of systems [(N-N)Re(CO) 3 X] À [8][9][10][11][12] with ''18+d" valence electron configuration [8a]. For reasons of symmetry and more sophisticated electronic structure we have also studied dinuclear systems (l-N-N)[Re(CO) 3 X] 2 with corresponding bridging bis-bidentate ligands [7a,7b,13-15], among them the strongly p-accepting a-azoimine chelate system 2,2 0 -azobipyridine, abpy [7a,7b,16].…”

Synthesis, Structures and Comparison of Neutral Complexes Formed by2‐(2′‐Pyridyl)indole and d6 Transition Metals

“…Similar low frequencies have been reported for anionic complex radicals of rhenium(I). [22] The electronic spectra of Hpyind have been discussed previously. [23][24][25] On complexation, the absorption maximum at 325 nm in Hpyind [4] shows a bathochromic shift of 40-65 nm.…”

A DFT study on structures, frontier molecular orbitals and UV–vis spectra of [M(L)(N3)(C7H5N)(PPh3)] (M= Ru and Fe; L= Tp and Cp)

“…Recently, the coordination complexes of ruthenium (Ru) with a ligand of hydridotris(pyrazolyl)borate (Tp) or a ligand of cyclopentadiene (Cp) are of current attraction because of their photophysical, photochemical and catalytic properties [1,2]. The geometries and characters of the Tp and Cp ligands are listed in Table 1 [3,4].…”