Photoinduced Dynamics of Bis-dipyrrinato-palladium(II)
and Porphodimethenato-palladium(II) Complexes: Governing Near Infrared
Phosphorescence by Structural Restriction
Version 2 2018-07-11, 19:21
Version 1 2018-06-14, 12:07
Posted on 2018-07-11 - 19:21
Although superficially similar, the
bis-dipyrrinato-palladium(II) complex 1 and the bridged
porphodimethenato-palladium(II) complex 2 possess dramatically
different structures in the ground state (proved by X-ray structure
analysis) and in the singlet and triplet excited states (calculated
by density functional theory methods). While complex 2 is rather rigid, complex 1 undergoes a major structural
reorganization in the excited state to yield a disphenoidal (seesaw)
triplet state. The dynamics of the excited states were probed by transient
absorption spectroscopy with femtosecond and nanosecond time resolution
and with fluorescence upconversion and yield intersystem crossing
rate constants of ca. (13–16 ps)−1. The observation
of significant near infrared phosphorescence in complex 2 but the absence of any emission in complex 1 in fluid
solution could be rationalized by the structural reorganization of 1 which results in a nonemissive triplet metal centered state.
CITE THIS COLLECTION
DataCite
3 Biotech
3D Printing in Medicine
3D Research
3D-Printed Materials and Systems
4OR
AAPG Bulletin
AAPS Open
AAPS PharmSciTech
Abhandlungen aus dem Mathematischen Seminar der Universität Hamburg
ABI Technik (German)
Academic Medicine
Academic Pediatrics
Academic Psychiatry
Academic Questions
Academy of Management Discoveries
Academy of Management Journal
Academy of Management Learning and Education
Academy of Management Perspectives
Academy of Management Proceedings
Academy of Management Review
Riese, Stefan; Holzapfel, Marco; Schmiedel, Alexander; Gert, Ingo; Schmidt, David; Würthner, Frank; et al. (2018). Photoinduced Dynamics of Bis-dipyrrinato-palladium(II)
and Porphodimethenato-palladium(II) Complexes: Governing Near Infrared
Phosphorescence by Structural Restriction. ACS Publications. Collection. https://doi.org/10.1021/acs.inorgchem.8b00974
or
Select your citation style and then place your mouse over the citation text to select it.
SHARE
Usage metrics
AUTHORS (7)
SR
Stefan Riese
MH
Marco Holzapfel
AS
Alexander Schmiedel
IG
Ingo Gert
DS
David Schmidt
FW
Frank Würthner
CL
Christoph Lambert