%0 Journal Article %1 Dogan.2004b %A Dogan, Akbey %A Sarkar, Biprajit %A Klein, Axel %A Lissner, Falk %A Schleid, Thomas %A Fiedler, Jan %A Zalis, Stanislav %A Jain, Vimal K. %A Kaim, Wolfgang. %D 2004 %J Inorganic Chemistry %K azobispyridine chloro complex complex;platinum crystal dimer monomer platinum prepn redn structure %N 19 %P 5973--5980 %R 10.1021/ic049941t %T Complex Reduction Chemistry of (abpy)PtCl2, abpy = 2,2'-Azobispyridine: Formation of Cyclic (m,h2:h1-abpy)PtCl22+ with a New Coordination Mode for abpy and a Near-Infrared Ligand-to-Ligand Intervalence Charge Transfer Absorption of the One-Electron Reduced State %V 43 %X The structurally characterized (abpy)PtCl2, abpy = 2,2'-azobispyridine, reveals a strong metal/ligand p interaction as supported by DFT calcns. Unexpectedly, its chem. or electrochem. redn. occurs irreversibly to yield EPR-detectable (μ,η2:η2-abpy)PtCl22.bul.- and, as the main product of chloride dissocn., the structurally identified and DFT-calcd. dinuclear (m,h2:h1-abpy)PtCl22+ with a novel coordination mode for abpy and isolated as tetrachlorozincate. Stepwise reversible 1-electron redn. of that dimer, sepd. by 0.24 V, exhibits an intense near-IR band for the monocationic intermediate (abpy-I)(abpy)Pt2Cl2.bul.+ at 1220 nm (e = 3370 M-1 cm-1) which is attributed to a ligand-to-ligand intervalence charge-transfer transition. on SciFinder(R)

@article{Dogan.2004b, abstract = {The structurally characterized (abpy)PtCl2, abpy = 2,2'-azobispyridine, reveals a strong metal/ligand \textgreek{p} interaction as supported by DFT calcns. Unexpectedly, its chem. or electrochem. redn. occurs irreversibly to yield EPR-detectable {(μ,η2:η2-abpy)[PtCl2]2}.bul.- and, as the main product of chloride dissocn., the structurally identified and DFT-calcd. dinuclear [(\textgreek{m},\textgreek{h}2:\textgreek{h}1-abpy)PtCl]22+ with a novel coordination mode for abpy and isolated as tetrachlorozincate. Stepwise reversible 1-electron redn. of that dimer, sepd. by 0.24 V, exhibits an intense near-IR band for the monocationic intermediate [(abpy-I)(abpy)Pt2Cl2].bul.+ at 1220 nm (\textgreek{e} = 3370 M-1 cm-1) which is attributed to a ligand-to-ligand intervalence charge-transfer transition. [on SciFinder(R)]}, added-at = {2022-06-15T11:26:56.000+0200}, author = {Dogan, Akbey and Sarkar, Biprajit and Klein, Axel and Lissner, Falk and Schleid, Thomas and Fiedler, Jan and Zalis, Stanislav and Jain, Vimal K. and Kaim, Wolfgang.}, biburl = {https://puma.ub.uni-stuttgart.de/bibtex/2359acfa04dd55f9a348c45dd6016d53c/huebleriac}, doi = {10.1021/ic049941t}, interhash = {076f1ff2dbb5ba77e6212d8030b4c342}, intrahash = {359acfa04dd55f9a348c45dd6016d53c}, issn = {0020-1669}, journal = {Inorganic Chemistry}, keywords = {azobispyridine chloro complex complex;platinum crystal dimer monomer platinum prepn redn structure}, number = 19, pages = {5973--5980}, timestamp = {2022-06-15T09:26:56.000+0200}, title = {Complex Reduction Chemistry of (abpy)PtCl2, abpy = 2,2'-Azobispyridine: Formation of Cyclic [(\textgreek{m},\textgreek{h}2:\textgreek{h}1-abpy)PtCl]22+ with a New Coordination Mode for abpy and a Near-Infrared Ligand-to-Ligand Intervalence Charge Transfer Absorption of the One-Electron Reduced State}, volume = 43, year = 2004 }