The two-photon absorption (TPA) properties of 4,4′-bis(para-di-n-butylaminostyryl)-2,2′-bipyridine (NBu2bipy) and related dipolar ([ZnY2(NBu2bipy)] (Y = Cl, CF3CO2), [Zn(2,2′-bipyridine)2(NBu2bipy)] [PF6]2) and octupolar ([Zn(NBu2bipy)3][PF6]2) complexes were investigated by the two-photon emission (TPE) technique in a femtosecond regime, working in the 730-930 nm spectral range. We found, in contrast with previous literature data, that the TPA enhancement upon coordination of a TPA active ligand to a metal center may be larger in the dipolar rather than the corresponding octupolar complex, the response being easily modulated by the choice of the ancillary ligands.
The two-photon absorption (TPA) properties of 4,4’-bis(para-di-n-butylaminostyryl)-2,2’-bipyridine (NBu2bipy) and related dipolar ([ZnY2(NBu2bipy)] (Y = Cl, CF3CO2), [Zn(2,2’-bipyridine)2(NBu2bipy)][PF6]2) and octupolar ([Zn(NBu2bipy)3][PF6]2) complexes were investigated by the two-photon emission (TPE) technique in a femtosecond regime, working in the 730–930 nm spectral range. We found, in contrast with previous literature data, that the TPA enhancement upon coordination of a TPA active ligand to a metal center may be larger in the dipolar rather than the corresponding octupolar complex, the response being easily modulated by the choice of the ancillary ligands.
Two-photon absorption properties of Zn(II) complexes: Unexpected large TPA cross section of dipolar [ZnY2(4,4'-bis(para-di-n-butylaminostyryl)-2,2'-bipyridine)] (Y = Cl, CF3CO2) / C. Dragonetti, M. Balordi, A. Colombo, D. Roberto, R. Ugo, I. Fortunati, E. Garbin, C. Ferrante, R. Bozio, A. Abbotto, H. Le Bozec. - In: CHEMICAL PHYSICS LETTERS. - ISSN 0009-2614. - 475:4/6(2009), pp. 245-249.
Two-photon absorption properties of Zn(II) complexes: Unexpected large TPA cross section of dipolar [ZnY2(4,4'-bis(para-di-n-butylaminostyryl)-2,2'-bipyridine)] (Y = Cl, CF3CO2)
C. DragonettiPrimo
;A. Colombo;D. Roberto;R. Ugo;
2009
Abstract
The two-photon absorption (TPA) properties of 4,4′-bis(para-di-n-butylaminostyryl)-2,2′-bipyridine (NBu2bipy) and related dipolar ([ZnY2(NBu2bipy)] (Y = Cl, CF3CO2), [Zn(2,2′-bipyridine)2(NBu2bipy)] [PF6]2) and octupolar ([Zn(NBu2bipy)3][PF6]2) complexes were investigated by the two-photon emission (TPE) technique in a femtosecond regime, working in the 730-930 nm spectral range. We found, in contrast with previous literature data, that the TPA enhancement upon coordination of a TPA active ligand to a metal center may be larger in the dipolar rather than the corresponding octupolar complex, the response being easily modulated by the choice of the ancillary ligands.
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