Untangling interactions of a zinc(ii) complex containing a coumarin-porphyrin unit with alkaloids in water solutions: A photophysical study

Carla I. M. Santos, Elisabete de Jesus Oliveira Marques, Hugo M. Santos, José C J M D S Menezes, M. Amparo F Faustino, José A S Cavaleiro, J. L. Capelo, Maria da Graça P. M. S. Neves, Carlos Lodeiro

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

A metal complex 1 derivative from a coumarin bearing a porphyrin unit was spectroscopically characterized and its sensing ability towards the alkaloids caffeine 2, nicotine 3 and cotinine 4 was evaluated in these studies. This probe shows to be sensitive to the alkaloids studied, where a detectable amount of 2.5 ± 0.3 μM of cotinine was determined in dam water from the Vigia Dam located in the Montoito village region, Alentejo district, Portugal. The interaction of 1 with cotinine was also verified by MALDI-TOF-MS, where it was found with peaks at 877.2 and 1053.3 m/z corresponding to the species [1H]+ and [1CotinineH]+, respectively.

Original languageEnglish
Pages (from-to)757-764
Number of pages8
JournalPhotochemical & Photobiological Sciences
Volume14
Issue number4
DOIs
Publication statusPublished - 1 Apr 2015

Keywords

  • NICOTINE
  • COTININE
  • CHEMOSENSORS
  • MYOSMINE
  • SALIVA
  • TETRAPHENYLPORPHYRIN
  • CHROMATOGRAPHY
  • SPECTROSCOPY
  • MECHANISMS
  • GENERATION

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