%0 Journal Article %1 Kaim.1995b %A Kaim, Wolfgang %A Fees, Joerg. %D 1995 %J Zeitschrift fuer Naturforschung, B: A Journal of Chemical Sciences %K bispyrimidyl complex complex;spectroelectrochem complex;tetrazine dinuclear electrochem pyrimidyltetrazine ruthenium %N 1 %P 123--127 %R 10.1515/znb-1995-0123 %T The new tetrafunctional p acceptor ligand 3,6-bis(2'-pyrimidyl)-1,2,4,5-tetrazine (bmtz): Diruthenium complexes of bmtz and its 1,4-dihydro form %V 50 %X Synthesis, phys. properties and the coordination with two [Ru(bpy)2]2+ complex fragments are described for 3,6-bis(2'-pyrimidyl)-1,2,4,5-tetrazine (bmtz), the 1st compact ligand which offers four equiv. a-diimine chelate sites. Spectroelectrochem. of intensely blue (μ-bmtz)[Ru(bpy)2]2n+, n = 4, reveals a very facile redn. (n = 3) at -0.40 V vs. FeCp2+/0 and a metal oxidn. (n = 5) at +1.18 V to a diruthenium(II/III) mixed-valent form which exhibits an intervalence transfer absorption at 1490 nm. The corresponding complex (μ-H2bmtz)[Ru(bpy)2]24+ with the 1,4-dihydro form H2bmtz of the tetrafunctional ligand is oxidized in two steps at 0.58 and 1.07 vs. FeCp2+/0. [on SciFinder(R)]

@article{Kaim.1995b, abstract = {Synthesis, phys. properties and the coordination with two [Ru(bpy)2]2+ complex fragments are described for 3,6-bis(2'-pyrimidyl)-1,2,4,5-tetrazine (bmtz), the 1st compact ligand which offers four equiv. \textgreek{a}-diimine chelate sites. Spectroelectrochem. of intensely blue {(μ-bmtz)[Ru(bpy)2]2}n+, n = 4, reveals a very facile redn. (n = 3) at -0.40 V vs. FeCp2+/0 and a metal oxidn. (n = 5) at +1.18 V to a diruthenium(II/III) mixed-valent form which exhibits an intervalence transfer absorption at 1490 nm. The corresponding complex {(μ-H2bmtz)[Ru(bpy)2]2}4+ with the 1,4-dihydro form H2bmtz of the tetrafunctional ligand is oxidized in two steps at 0.58 and 1.07 vs. FeCp2+/0. [on SciFinder(R)]}, added-at = {2022-06-15T11:26:56.000+0200}, author = {Kaim, Wolfgang and Fees, Joerg.}, biburl = {https://puma.ub.uni-stuttgart.de/bibtex/236a615fad5ab6ab85f20832f18b79259/huebleriac}, doi = {10.1515/znb-1995-0123}, interhash = {349629ecbdb907b9d3529f2a876d8807}, intrahash = {36a615fad5ab6ab85f20832f18b79259}, issn = {0932-0776}, journal = {Zeitschrift fuer Naturforschung, B: A Journal of Chemical Sciences}, keywords = {bispyrimidyl complex complex;spectroelectrochem complex;tetrazine dinuclear electrochem pyrimidyltetrazine ruthenium}, number = 1, pages = {123--127}, timestamp = {2022-06-15T09:26:56.000+0200}, title = {The new tetrafunctional \textgreek{p} acceptor ligand 3,6-bis(2'-pyrimidyl)-1,2,4,5-tetrazine (bmtz): Diruthenium complexes of bmtz and its 1,4-dihydro form}, volume = 50, year = 1995 }