%0 Journal Article %1 Gloeckle.2001b %A Gloeckle, Markus %A Kaim, Wolfgang %A Klein, Axel %A Roduner, Emil %A Huebner, Georg %A Zalis, Stanislav %A van Slageren, Joris %A Renz, Franz %A Guetlich, Philipp. %D 2001 %J Inorganic Chemistry %K complex complex;iron cyano dinuclear electrochem iron prepn;oxidn redn tetrazine %N 10 %P 2256--2262 %R 10.1021/ic001229i %T The Stable Diiron(2.5) Complex Ion (NC)5Fe(m-tz)Fe(CN)55-, tz = 1,2,4,5-Tetrazine, and Its Neighboring Oxidation States %V 40 %X The conceptually simple mixed-valent diiron compd. (NEt4)5(NC)5Fe(m-tz)Fe(CN)5 with the 1,2,4,5-tetrazine (tz) bridging ligand was obtained as a thermally and air-stable material that displays large and highly variable electrochem. comproportionation consts. between $\sim$108 (in H2O) and 1019.0 (in MeCN). Strong metal-metal interaction is also evident from spectroscopic results obtained for the solid and for the dissolved species. The rather intense intervalence charge-transfer band occurs around 2400 nm; IR and Mossbauer spectra reveal the high spectroscopic symmetry of the system according to an (Fe2.5)2 formulation. DFT calcns. on the (NC)5Fe(m-tz)Fe(CN)56- ion confirm the presence of very low-lying p*(tz) and high-lying d(Fe) orbitals. on SciFinder(R)

@article{Gloeckle.2001b, abstract = {The conceptually simple mixed-valent diiron compd. (NEt4)5[(NC)5Fe(\textgreek{m}-tz)Fe(CN)5] with the 1,2,4,5-tetrazine (tz) bridging ligand was obtained as a thermally and air-stable material that displays large and highly variable electrochem. comproportionation consts. between $\sim$108 (in H2O) and 1019.0 (in MeCN). Strong metal-metal interaction is also evident from spectroscopic results obtained for the solid and for the dissolved species. The rather intense intervalence charge-transfer band occurs around 2400 nm; IR and Mossbauer spectra reveal the high spectroscopic symmetry of the system according to an (Fe2.5)2 formulation. DFT calcns. on the [(NC)5Fe(\textgreek{m}-tz)Fe(CN)5]6- ion confirm the presence of very low-lying \textgreek{p}*(tz) and high-lying d(Fe) orbitals. [on SciFinder(R)]}, added-at = {2022-06-15T11:26:56.000+0200}, author = {Gloeckle, Markus and Kaim, Wolfgang and Klein, Axel and Roduner, Emil and Huebner, Georg and Zalis, Stanislav and {van Slageren}, Joris and Renz, Franz and Guetlich, Philipp.}, biburl = {https://puma.ub.uni-stuttgart.de/bibtex/21bf1c50191110043bb79ae0b4578b350/huebleriac}, doi = {10.1021/ic001229i}, interhash = {92cde1a9e0198866bb94546e7c846f28}, intrahash = {1bf1c50191110043bb79ae0b4578b350}, issn = {0020-1669}, journal = {Inorganic Chemistry}, keywords = {complex complex;iron cyano dinuclear electrochem iron prepn;oxidn redn tetrazine}, number = 10, pages = {2256--2262}, timestamp = {2022-06-15T09:26:56.000+0200}, title = {The Stable Diiron(2.5) Complex Ion [(NC)5Fe(\textgreek{m}-tz)Fe(CN)5]5-, tz = 1,2,4,5-Tetrazine, and Its Neighboring Oxidation States}, volume = 40, year = 2001 }