0000000001309238

AUTHOR

Maximilian Lauck

showing 5 related works from this author

Cobaltocenium substituents as electron acceptors in photosynthetic model dyads

2017

Abstract Cobaltocenium carboxylic acid hexafluorophosphate has been attached to a zinc(II) meso-tetraphenyl porphyrin chromophore via an amide linkage. Optical and electrochemical studies reveal that the metallocene and the porphyrin interact only negligibly in the ground state of the dyad. Photoinduced charge-shift from the zinc porphyrin to the cobaltocenium substituent to give the zinc porphyrin radical cation and the cobaltocene occurs upon exciting the porphyrin with light. Steady state emission, time-resolved fluorescence and transient absorption pump–probe spectroscopy in addition to density functional theory calculations suggest that the charge shift to the cobaltocenium substituent…

010405 organic chemistryOrganic ChemistrySubstituentChromophore010402 general chemistryPhotochemistry01 natural sciencesBiochemistryPorphyrinPhotoinduced electron transfer0104 chemical sciencesInorganic Chemistrychemistry.chemical_compoundchemistryExcited stateHexafluorophosphateCobaltoceneMaterials ChemistryPhysical and Theoretical ChemistryTriplet stateJournal of Organometallic Chemistry
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N-Cobaltocenium Amide as Reactive Nucleophilic Reagent for Donor–Acceptor Bimetallocenes

2017

Deprotonation of the aminocobaltocenium ion [Cc-NH2]+ ([H-1]+) generates the nucleophilic imine CcNH (1). Reaction of 1 with acid chlorides R–COCl (R = Ph, Fc, and Cc+) yields the reference amide [Ph-CO-NH-Cc]+ (2+) and the amide-linked hetero- and homobimetallocenes [Fc-CO-NH-Cc]+ (3+) and [Cc-CO-NH-Cc]2+ (42+), respectively. Cation–anion interactions of charged amides 2+–42+ in the solid state and in solution are probed by single crystal X-ray diffraction and NMR and IR spectroscopy. Intramolecular metal–metal interactions in donor–acceptor heterobimetallocene 3+ and in mixed-valent homobimetallocene 4+ (prepared electrochemically) are discussed within the Marcus–Hush framework aided by s…

010405 organic chemistryOrganic ChemistryImineInfrared spectroscopy010402 general chemistry01 natural sciences0104 chemical sciencesInorganic Chemistrychemistry.chemical_compoundCrystallographyDeprotonationchemistryNucleophileIntramolecular forceReagentAmideDensity functional theoryPhysical and Theoretical ChemistryOrganometallics
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CCDC 1581720: Experimental Crystal Structure Determination

2017

Related Article: Maximilian Lauck, Christoph Förster, Katja Heinze|2017|Organometallics|36|4968|doi:10.1021/acs.organomet.7b00790

Space GroupCrystallographyCrystal SystemCrystal Structure1-(ferrocenylamido)-cobaltocene hexafluorophosphate benzene solvateCell ParametersExperimental 3D Coordinates
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CCDC 1581721: Experimental Crystal Structure Determination

2017

Related Article: Maximilian Lauck, Christoph Förster, Katja Heinze|2017|Organometallics|36|4968|doi:10.1021/acs.organomet.7b00790

Space GroupCrystallographyCrystal SystemCrystal Structure1-benzamido-cobaltocene hexafluorophosphateCell ParametersExperimental 3D Coordinates
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CCDC 1522073: Experimental Crystal Structure Determination

2017

Related Article: Maximilian Lauck, Christoph Förster, Dominik Gehrig, Katja Heinze|2017|J.Organomet.Chem.|847|33|doi:10.1016/j.jorganchem.2017.02.026

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameterscatena-[(mu-methyl 4-(15-{4-[(cobaltocenium-1-carbonyl)amino]phenyl}-1020-diphenylporphyrinato-5-yl)benzoate)-zinc hexafluorophosphate unknown solvate]Experimental 3D Coordinates
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