TY - JOUR
T1 - Synthesis and photophysical properties of the 4-(biphenyl-4-yl)-2,6-bis(4- iodophenyl)pyrylium Ion
AU - Álvaro, Mercedes
AU - Aprile, Carmela
AU - Carbonell Llopis, Esther
AU - Ferrer, Belén
AU - García, Hermenegildo
PY - 2006/5/26
Y1 - 2006/5/26
N2 - A triarylpyrylium ion containing iodo and biphenyl substituents has been synthesized and its photophysical properties measured. Compared to its parent triphenylpyrylium ion, the photophysical data recorded for 4-(biphenyl-4-yl)-2, 6-bis(4-iodophenyl)pyrylium are significantly influenced by substitution. Remarkable decreases in fluorescence and phosphorescence quantum yields, a shorter singlet lifetime, and lower energies of the singlet and triplet excited states are observed.
AB - A triarylpyrylium ion containing iodo and biphenyl substituents has been synthesized and its photophysical properties measured. Compared to its parent triphenylpyrylium ion, the photophysical data recorded for 4-(biphenyl-4-yl)-2, 6-bis(4-iodophenyl)pyrylium are significantly influenced by substitution. Remarkable decreases in fluorescence and phosphorescence quantum yields, a shorter singlet lifetime, and lower energies of the singlet and triplet excited states are observed.
KW - PET (photoinduced electron transfer)
KW - Photosensitizer
KW - Pyrylium
KW - Thiapyrylium
UR - http://www.scopus.com/inward/record.url?scp=33744949504&partnerID=8YFLogxK
U2 - 10.1002/ejoc.200500997
DO - 10.1002/ejoc.200500997
M3 - Article
AN - SCOPUS:33744949504
SN - 1434-193X
SP - 2644
EP - 2648
JO - European Journal of Organic Chemistry
JF - European Journal of Organic Chemistry
IS - 11
ER -