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Reply to the 'Comment on "Metal-organic green dye: chemical and physical insight into a modified Zn-benzoporphyrin for dye-sensitized solar cells"' by R. Steer, RSC Advances , 2018, DOI: 10.1039/c8ra00213d.

Gloria ZanottiN AngeliniGiuseppe MattioliAnna Maria PaolettiGiovanna PennesiG RossiDaniela CascheraLuisa De MarcoG Gigli
Published in: RSC advances (2018)
The authors reply to the comment by R. P. Steer discussing the reasons for their incorrect assignment of the luminescence decay of the novel compound 5,10,15-(triphenyl),20-[ethynyl-(4-carboxy)phenyl]tetrabenzoporphyrinate Zn(ii) (PETBP). Further DFT and TDDFT calculations have been performed on the compound to investigate the possibility of a direct S 2 -S 0 decay instead of a S 2 -S 1 conversion with a subsequent emission to the ground state. In addition, the presence of traces of very luminescent contaminants of the ring-opened type has been considered on the grounds of calculated absorption and fluorescence spectra. The results of these investigations confirm that the S 2 -S 0 emission reported in the commented paper is not attributable to the target molecule but rather to a neglected luminescent impurity.
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