Molecular tweezer based on zinc porphyrin-substituted diarylethene
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, ISSN: 1386-1425, Vol: 68, Issue: 3, Page: 554-560
2007
- 13Citations
- 7Captures
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Article Description
A molecular tweezer, zinc porphyrin–dithienylethene–zinc porphyrin (ZnP–DTE–ZnP) triad, has been prepared. Triad ZnPor–DTE–ZnPor showed a little electronic communication among the chromophores judged from the comparison of the steady-state absorption and fluorescence spectra for triads and their component compounds. Irradiation of ZnPor–DTE–ZnPor with UV light converts dithienylethene moiety from open form to closed form. The complexation of ZnP–DTE–ZnP with 4,4′-bipyridyl were investigated by absorption and fluorescence spectroscopic measurements. ZnP–DTE–ZnP forms a 1:1 complex with 4,4′-bipyridyl. The stability constants of log K = 4.0 and 4.2 mol −1 dm 3 were determined by absorption and fluorescence spectral changes, respectively.
Bibliographic Details
http://www.sciencedirect.com/science/article/pii/S1386142506007566; http://dx.doi.org/10.1016/j.saa.2006.12.027; http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=34848894529&origin=inward; http://www.ncbi.nlm.nih.gov/pubmed/17329155; https://linkinghub.elsevier.com/retrieve/pii/S1386142506007566; https://dx.doi.org/10.1016/j.saa.2006.12.027
Elsevier BV
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