https://commons.ufh.ac.za/vital/access/manager/Index en-us 5 Nonlinear optical properties of metal free thio alkyl and tert-butyl phenoxy phthalocyanine https://commons.ufh.ac.za/vital/access/manager/Repository/vital:45021 1.21×10−32(C4h) > 1.05×10−32 (C2v) esu, respectively, in chloroform. Symmetry was seen to have an effect on the observed reverse saturable absorption (RSA) response. Based on the five level model rate equation nonlinear fit of the RSA response curves and Real Time Time Dependant Density Functional Theory (RT-TDDFT) results, the singlet excited state population dynamics was found to play a significant role in producing the observed Im[γ] trend.]]> Thu 17 Feb 2022 15:40:47 SAST ]]> The synthesis and characterisation of Sn(IV) porphyrin derivatives and their potential application in anti-cancer and antimicrobial photodynamic therapy https://commons.ufh.ac.za/vital/access/manager/Repository/vital:44791 Fri 22 Oct 2021 15:54:57 SAST ]]>