0000000000729736

AUTHOR

Piet Boden

showing 2 related works from this author

Spin Crossover and Long-Lived Excited States in a Reduced Molecular Ruby.

2020

Abstract The chromium(III) complex [CrIII(ddpd)2]3+ (molecular ruby; ddpd=N,N′‐dimethyl‐N,N′‐dipyridine‐2‐yl‐pyridine‐2,6‐diamine) is reduced to the genuine chromium(II) complex [CrII(ddpd)2]2+ with d4 electron configuration. This reduced molecular ruby represents one of the very few chromium(II) complexes showing spin crossover (SCO). The reversible SCO is gradual with T 1/2 around room temperature. The low‐spin and high‐spin chromium(II) isomers exhibit distinct spectroscopic and structural properties (UV/Vis/NIR, IR, EPR spectroscopies, single‐crystal XRD). Excitation of [CrII(ddpd)2]2+ with UV light at 20 and 290 K generates electronically excited states with microsecond lifetimes. This…

step-scan IR spectroscopychemistry.chemical_element010402 general chemistryPhotochemistry01 natural sciencesCatalysislaw.inventionChromiumSpin crossoverlawSpin CrossoverElectron paramagnetic resonanceexcited states010405 organic chemistryChemistryCommunicationOrganic ChemistryGeneral ChemistryCommunications0104 chemical sciencesMicrosecondExcited stateElectron configurationchromiummagnetic propertiesExcitationChemistry (Weinheim an der Bergstrasse, Germany)
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CCDC 1958093: Experimental Crystal Structure Determination

2020

Related Article: Patrick B. Becker, Christoph Förster, Luca M. Carrella, Piet Boden, David Hunger, Joris van Slageren, Markus Gerhards, Eva Rentschler, Katja Heinze|2020|Chem.-Eur.J.|26|7199|doi:10.1002/chem.202001237

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parametersbis(N2N6-dimethyl-N2N6-bis(pyridin-2-yl)pyridine-26-diamine)-chromium bis(tetrafluoroborate) acetonitrile solvateExperimental 3D Coordinates
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