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Charge transfer in porphyrin–calixarene complexes: ultrafast kinetics, cyclic voltammetry, and DFT calculations

SYSNO ASEP	0358798
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Charge transfer in porphyrin–calixarene complexes: ultrafast kinetics, cyclic voltammetry, and DFT calculations
Author(s)	Kubát, Pavel (UFCH-W)_{RID, ORCID, SAI} Šebera, Jakub (UFCH-W)_{ORCID, RID} Záliš, Stanislav (UFCH-W)_{RID, ORCID} Langmaier, Jan (UFCH-W)_{RID, ORCID, SAI} Fuciman, M. (CZ) Polívka, T. (CZ) Lang, Kamil (UACH-T)_{SAI, RID, ORCID}
Source Title	Physical Chemistry Chemical Physics. - : Royal Society of Chemistry - ISSN 1463-9076 Roč. 13, č. 15 (2011), s. 6947-6954
Number of pages	8 s.
Language	eng - English
Country	GB - United Kingdom
Keywords	porphyrin-calixarene complexes ; voltammetry ; DFT calculations
Subject RIV	CF - Physical ; Theoretical Chemistry
Subject RIV - cooperation	Institute of Inorganic Chemistry - Inorganic Chemistry
R&D Projects	GAP208/10/1678 GA ČR - Czech Science Foundation (CSF)
	GA203/09/0691 GA ČR - Czech Science Foundation (CSF)
CEZ	AV0Z40400503 - UFCH-W (2005-2011)
	AV0Z40320502 - UACH-T (2005-2011)
UT WOS	000288951000021
DOI	10.1039/C0CP01726D
Annotation	Transient absorption spectroscopy, cyclic voltammetry, and DFT calculations were used to describe charge transfer processes in a series of 5,10,15,20-tetrakis(N-methylpyridinium-n-yl) porphyrins (TMPyPn, n = 4,3,2) and TMPyPn/p-sulfonatocalix[m]arene (clxm, m = 4,6,8) complexes. Excitation of TMPyPn is accompanied by an increasing electron density at the methylpyridinium substituents in the order TMPyP2 < TMPyP3 < TMPyP4. The quenching of the excited singlet states of the complexes increases with the number of ionized phenolic groups of clxm and can be correlated with the partial transfer of the electron density from O− to the peripheral methylpyridinium substituents rather than to the porphyrin ring.
Workplace	J. Heyrovsky Institute of Physical Chemistry
Contact	Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196
Year of Publishing	2012

Number of the records: 1