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Exploring the self-assembly and energy transfer of dynamic supramolecular iridium-porphyrin systems
- Source :
- Dalton Transactions, Dalton Transactions, Royal Society of Chemistry, 2016, 45 (43), pp.17195-17205. ⟨10.1039/c6dt02619b⟩
- Publication Year :
- 2016
- Publisher :
- Royal Society of Chemistry (RSC), 2016.
-
Abstract
- EZ-C acknowledges the University of St Andrews for financial support. IDWS acknowledges support from EPSRC (EP/J009016) and the European Research Council (grant 321305). IDWS also acknowledges support from a Royal Society Wolfson research merit award. DJ acknowledges the European Research Council (grant: 278845) and the RFI Lumomat for financial support. We present the first examples of dynamic supramolecular systems composed of cyclometalated Ir(III) complexes of the form of [Ir(C^N)2(N^N)]PF6 (where C^N is mesppy = 2-phenyl-4-mesitylpyridinato and dFmesppy = 2-(4,6-difluorophenyl)-4-mesitylpyridinato and N^N is 4,4':2',2'':4'',4'''-quaterpyridine, qpy) and zinc tetraphenylporphyrin (ZnTPP), assembled through non-covalent interactions between the distal pyridine moieties of the qpy ligand located on the iridium complex and the zinc of the ZnTPP. The assemblies have been comprehensively characterized by a series of analytical techniques (1H NMR titration experiments, 2D COSY and HETCOR NMR spectra and low temperature 1H NMR spectroscopy) and the crystal structures have been elucidated by X-ray diffraction. The optoelectronic properties of the assemblies and the electronic interaction between the iridium and porphyrin chromophoric units have been explored with detailed photophysical measurements, supported by time-dependent density functional theory (TD-DFT) calculations. Postprint
- Subjects :
- 010405 organic chemistry
Stereochemistry
Supramolecular chemistry
chemistry.chemical_element
DAS
Crystal structure
QD Chemistry
010402 general chemistry
01 natural sciences
Porphyrin
0104 chemical sciences
Inorganic Chemistry
NMR spectra database
chemistry.chemical_compound
Crystallography
chemistry
Pyridine
Proton NMR
[CHIM]Chemical Sciences
QD
Density functional theory
Iridium
Subjects
Details
- ISSN :
- 14779234 and 14779226
- Volume :
- 45
- Database :
- OpenAIRE
- Journal :
- Dalton Transactions
- Accession number :
- edsair.doi.dedup.....55a237f661ec87cc509d907915908431