%0 Journal Article %1 SinghaHazari.2017 %A Singha Hazari, Arijit %A Mandal, Abhishek %A Beyer, Katharina %A Paretzki, Alexa %A Kaim, Wolfgang %A Lahiri, Goutam Kumar. %D 2017 %J Inorganic Chemistry %K bipyridine complex;optimized complex;redox complex;ruthenium crystal dihydrodipyridylpyrrolopyrroledione frontier mol orbital pentanedionato phenylazopyridine potential prepn ruthenium structure %N 5 %P 2992--3004 %R 10.1021/acs.inorgchem.6b03112 %T Metal-Metal Bridging Using the DPPP Dye System: Electronic Configurations within Multiple Redox Series %V 56 %X Redox series [LnRu(m-DPPP)RuLn]k, H2DPPP = 2,5-dihydro-3,6-di-2-pyridylpyrrolo(3,4-c)pyrrole-1,4-dione and L = 2,4-pentanedionato (acac-), 2,2'-bipyridine (bpy), and 2-phenylazopyridine (pap), were studied by voltammetry (CV, DPV), EPR, and UV-visible-NIR spectroelectrochem., supported by TD-DFT calcns. Crystal structure anal. and 1H NMR revealed oxidn. states [(acac)2RuIII(m-DPPP2-)RuIII(acac)2] and [(bpy)2RuII(m-DPPP2-)RuII(bpy)2]2+ for the corresponding precursors, isolated as rac diastereomers. Oxidn. occurs mainly at the bridging ligand (DPPP2- $\rightarrow$ DPPP.bul.-), whereas the site of redn. (DPPP, Ru, or L) depends on effects from the ancillary ligands L. The metal coordination of a deriv. of the pigment forming 2,5-dihydro-pyrrolo(3,4-c)pyrrole-1,4-dione (DPP) dyes and the anal. of corresponding multistep redox series add to the previously recognized coordinative and electron transfer potential of dye mols. of the azo, indigo, anthraquinone, and formazanate type. [on SciFinder(R)]

@article{SinghaHazari.2017, abstract = {Redox series [LnRu(\textgreek{m}-DPPP)RuLn]k, H2DPPP = 2,5-dihydro-3,6-di-2-pyridylpyrrolo(3,4-c)pyrrole-1,4-dione and L = 2,4-pentanedionato (acac-), 2,2'-bipyridine (bpy), and 2-phenylazopyridine (pap), were studied by voltammetry (CV, DPV), EPR, and UV-visible-NIR spectroelectrochem., supported by TD-DFT calcns. Crystal structure anal. and 1H NMR revealed oxidn. states [(acac)2RuIII(\textgreek{m}-DPPP2-)RuIII(acac)2] and [(bpy)2RuII(\textgreek{m}-DPPP2-)RuII(bpy)2]2+ for the corresponding precursors, isolated as rac diastereomers. Oxidn. occurs mainly at the bridging ligand (DPPP2- $\rightarrow$ DPPP.bul.-), whereas the site of redn. (DPPP, Ru, or L) depends on effects from the ancillary ligands L. The metal coordination of a deriv. of the pigment forming 2,5-dihydro-pyrrolo(3,4-c)pyrrole-1,4-dione (DPP) dyes and the anal. of corresponding multistep redox series add to the previously recognized coordinative and electron transfer potential of dye mols. of the azo, indigo, anthraquinone, and formazanate type. [on SciFinder(R)]}, added-at = {2022-06-15T11:26:56.000+0200}, author = {{Singha Hazari}, Arijit and Mandal, Abhishek and Beyer, Katharina and Paretzki, Alexa and Kaim, Wolfgang and Lahiri, Goutam Kumar.}, biburl = {https://puma.ub.uni-stuttgart.de/bibtex/26b0ce3a3e69356366121bd3e675ba258/huebleriac}, doi = {10.1021/acs.inorgchem.6b03112}, interhash = {06fdced2a16adf2b49117b879e003e7a}, intrahash = {6b0ce3a3e69356366121bd3e675ba258}, issn = {0020-1669}, journal = {Inorganic Chemistry}, keywords = {bipyridine complex;optimized complex;redox complex;ruthenium crystal dihydrodipyridylpyrrolopyrroledione frontier mol orbital pentanedionato phenylazopyridine potential prepn ruthenium structure}, number = 5, pages = {2992--3004}, timestamp = {2022-06-15T09:26:56.000+0200}, title = {Metal-Metal Bridging Using the DPPP Dye System: Electronic Configurations within Multiple Redox Series}, volume = 56, year = 2017 }