The two-photon absorption (TPA) properties of various terpyridines of the kind [49-(C6H4-p-X)- 2,29:69,20-terpyridine] and related homoleptic and heteroleptic bis(terpyridine) cationic zinc(II) complexes were investigated by the TPA induced photoluminescence (TPA-PL) method in a femtosecond regime. It appeared that terpyridines bearing an X donor group are characterized by TPA cross sections among the largest ever reported for a molecule with a dipole symmetry whereas coordination to a Zn(II) center leads to a decrease of the TPA response.
An investigation on the two-photon absorption activity of various terpyridines and related homoleptic and heteroleptic cationic Zn(II) complexes / S. Righetto, S. Rondena, D. Locatelli, D. Roberto, F. Tessore, R. Ugo, S. Quici, S. Roma, D. Korystov, V. I. Srdanov. - In: JOURNAL OF MATERIALS CHEMISTRY. - ISSN 0959-9428. - 16:15(2006), pp. 1439-1444. [10.1039/b515129e]
An investigation on the two-photon absorption activity of various terpyridines and related homoleptic and heteroleptic cationic Zn(II) complexes
S. RighettoPrimo
;D. Locatelli;D. Roberto;F. Tessore;R. Ugo;
2006
Abstract
The two-photon absorption (TPA) properties of various terpyridines of the kind [49-(C6H4-p-X)- 2,29:69,20-terpyridine] and related homoleptic and heteroleptic bis(terpyridine) cationic zinc(II) complexes were investigated by the TPA induced photoluminescence (TPA-PL) method in a femtosecond regime. It appeared that terpyridines bearing an X donor group are characterized by TPA cross sections among the largest ever reported for a molecule with a dipole symmetry whereas coordination to a Zn(II) center leads to a decrease of the TPA response.
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