Transient absorption characterization of Cu- and Zn-metallized derivatives of meso-tetrakis(4-caynophenyl) N-confused porphyrin

Guanghong Ao; Zhengguo Xiao; Yuxiao Wang; Xueru Zhang; Yinglin Song

doi:10.1117/12.2199634

15 October 2015 Transient absorption characterization of Cu- and Zn-metallized derivatives of meso-tetrakis(4-caynophenyl) N-confused porphyrin

Guanghong Ao, Zhengguo Xiao, Yuxiao Wang, Xueru Zhang, Yinglin Song

Author Affiliations +

Proceedings Volume 9671, AOPC 2015: Advances in Laser Technology and Applications; 96710X (2015) https://doi.org/10.1117/12.2199634
Event: Applied Optics and Photonics China (AOPC2015), 2015, Beijing, China

Abstract

Meso-tetrakis(4-cyanophenyl)N-confused porphyrin [NCTPP(CN)4] and its two metallized derivatives with Cu²⁺ and Zn²⁺ ligand in the central position of the macrocycle are synthesized and spectroscopically characterized. Their excited-state dynamics are investigated with transient absorption (TA) spectroscopy upon excitation by 190 fs laser pulses at 420 nm within their Soret band region. A global and target analysis for the TA spectra of each porphyrin is performed via a four-level model including singlet (S) and triplet (T) states to extract the photophysical parameters at a variety of absorption wavelengths. Furthermore the corresponding excited-state lifetimes are extracted and discussed.

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Guanghong Ao, Zhengguo Xiao, Yuxiao Wang, Xueru Zhang, and Yinglin Song "Transient absorption characterization of Cu- and Zn-metallized derivatives of meso-tetrakis(4-caynophenyl) N-confused porphyrin", Proc. SPIE 9671, AOPC 2015: Advances in Laser Technology and Applications, 96710X (15 October 2015); https://doi.org/10.1117/12.2199634

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