Electronic investigation of light-induced reversible coordination of Co(II)/spiropyran complex

Flávio B. Miguez, Izadora F. Reis, Lucas P. Dutra, Igor Maciel Souza Silva, Thiago Verano-Braga, Juliana Fedoce Lopes, Frederico B. De Sousa

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Abstrakt

Herein, synthesis and characterization of a cobalt (II) complex using a spiropyran as its ligand was described. Solid complex (CoMC) was obtained using a novel ultraviolet radiation-induced precipitation technique, FTIR-ATR spectroscopy demonstrated the binding sites involved in the coordination. Computational calculations were crucial to understand the experimental results, demonstrating the frontiers orbitals in tetrahydrofuran. Moreover, mass spectrometry revealed a 1:2 Co(II):ligand stoichiometry. By means of UV–vis absorption spectroscopy, complexation was confirmed and photochromic and the solvatochromic characteristics of the complex and the free ligand were studied. These results showed that the complex did not present a would be expected pattern regarding its solvatochromic properties, while the free ligand did. Reversibility experiments exposed a high resistance to photodegradation of the complex in isopropanol, comparing to the other solvents tested.

OriginalsprogEngelsk
Artikelnummer107757
TidsskriftDyes and Pigments
Vol/bind171
ISSN0143-7208
DOI
StatusUdgivet - dec. 2019
Udgivet eksterntJa

Fingeraftryk Dyk ned i forskningsemnerne om 'Electronic investigation of light-induced reversible coordination of Co(II)/spiropyran complex'. Sammen danner de et unikt fingeraftryk.

Citationsformater