%0 Journal Article %1 Sarkar.2005b %A Sarkar, Sounak %A Sarkar, Biprajit %A Chanda, Nripen %A Kar, Sanjib %A Mobin, Shaikh M. %A Fiedler, Jan %A Kaim, Wolfgang %A Lahiri, Goutam Kumar. %D 2005 %J Inorganic Chemistry %K anion cation complex complex;nitrosyl dipyridyl electrochem ketone ligand nitroso nitrosyl oxidn precursor;kinetics prepn radical reactivity redox ruthenium terpyridine %N 17 %P 6092--6099 %R 10.1021/ic050533e %T Complex Series [Ru(tpy)(dpk)(X)]n+ (tpy = 2,2': 6',2''-Terpyridine; dpk = 2,2'-Dipyridyl Ketone; X = Cl-, CH3CN, NO2-, NO+, NO.bul., NO-): Substitution and Electron Transfer, Structure, and Spectroscopy %V 44 %X The complex framework [Ru(tpy)(dpk)]2+ (tpy = 2,2':6',2''-terpyridine, dpk = 2,2'-dipyridyl ketone) was used to study the generation and reactivity of the nitrosyl complex [Ru(tpy)(dpk)(NO)]3+ ([4]3+). Stepwise conversion of the chloro complex [Ru(tpy)(dpk)(Cl)]+ ([1]+) via [Ru(tpy)(dpk)(MeCN)]2+ ([2]2+) and the nitro compd. [Ru(tpy)(dpk)(NO2)]+ ([3]+) yielded [4]3+; all four complexes were structurally characterized as perchlorates. Electrochem. oxidn. and redn. were studied as a function of the monodentate ligand as were the IR and UV-visible spectroscopic responses (absorption/emission). The kinetics of the nitroso-to-nitro conversion [4]3+/[3]+ in aq. environment were also studied. Two-step redn. of [4]3+ was monitored via EPR, UV-visible, and IR (n(NO), n(CO)) spectroelectrochem. to confirm the RuNO7 configuration of [4]2+ and to exhibit a relatively intense band at 505 nm for [4]+, attributed to a ligand-to-ligand transition originating from bound NO-. [on SciFinder(R)]

@article{Sarkar.2005b, abstract = {The complex framework [Ru(tpy)(dpk)]2+ (tpy = 2,2':6',2''-terpyridine, dpk = 2,2'-dipyridyl ketone) was used to study the generation and reactivity of the nitrosyl complex [Ru(tpy)(dpk)(NO)]3+ ([4]3+). Stepwise conversion of the chloro complex [Ru(tpy)(dpk)(Cl)]+ ([1]+) via [Ru(tpy)(dpk)(MeCN)]2+ ([2]2+) and the nitro compd. [Ru(tpy)(dpk)(NO2)]+ ([3]+) yielded [4]3+; all four complexes were structurally characterized as perchlorates. Electrochem. oxidn. and redn. were studied as a function of the monodentate ligand as were the IR and UV-visible spectroscopic responses (absorption/emission). The kinetics of the nitroso-to-nitro conversion [4]3+/[3]+ in aq. environment were also studied. Two-step redn. of [4]3+ was monitored via EPR, UV-visible, and IR (\textgreek{n}(NO), \textgreek{n}(CO)) spectroelectrochem. to confirm the {RuNO}7 configuration of [4]2+ and to exhibit a relatively intense band at 505 nm for [4]+, attributed to a ligand-to-ligand transition originating from bound NO-. [on SciFinder(R)]}, added-at = {2022-06-15T11:26:56.000+0200}, author = {Sarkar, Sounak and Sarkar, Biprajit and Chanda, Nripen and Kar, Sanjib and Mobin, Shaikh M. and Fiedler, Jan and Kaim, Wolfgang and Lahiri, Goutam Kumar.}, biburl = {https://puma.ub.uni-stuttgart.de/bibtex/2fc43475cc109889bb85956b19cb03e2e/huebleriac}, doi = {10.1021/ic050533e}, interhash = {782ae3f55e983dd19539e0430e63537b}, intrahash = {fc43475cc109889bb85956b19cb03e2e}, issn = {0020-1669}, journal = {Inorganic Chemistry}, keywords = {anion cation complex complex;nitrosyl dipyridyl electrochem ketone ligand nitroso nitrosyl oxidn precursor;kinetics prepn radical reactivity redox ruthenium terpyridine}, number = 17, pages = {6092--6099}, timestamp = {2022-06-15T09:26:56.000+0200}, title = {Complex Series [Ru(tpy)(dpk)(X)]n+ (tpy = 2,2': 6',2''-Terpyridine; dpk = 2,2'-Dipyridyl Ketone; X = Cl-, CH3CN, NO2-, NO+, NO.bul., NO-): Substitution and Electron Transfer, Structure, and Spectroscopy}, volume = 44, year = 2005 }