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Synthesis of New Porphyrin Complexes: Evaluations on Optical, Electrochemical, Electronic Properties and Application as an Optical Sensor
Author(s) -
Brahmi Jihed,
Nasri Soumaya,
Saidi Hamza,
Nasri Habib,
Aouadi Kaiss
Publication year - 2019
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201803676
Subject(s) - hexamethylenetetramine , porphyrin , zinc , electrochemistry , titration , spectroscopy , photoluminescence , absorption spectroscopy , chemistry , dielectric spectroscopy , zinc nitrate , photochemistry , materials science , inorganic chemistry , organic chemistry , electrode , optics , physics , optoelectronics , quantum mechanics
This work reports on the synthesis, characterization and application as an optical sensor of two new porphyrin complexes namely :(Hexamethylenetetramine)( meso ‐tetratrifluoromethylphenylporphyrinato) zinc(II) [Zn(TFMPP)(HMTA)] and (Hexamethylenetetramine)( meso ‐tetra ‐tert ‐butylphenylphenylporphyrinato) Zinc(II) [Zn(T t BuPP)(HMTA)]. The chemical structures of these species were defined by 1 HNMR and FT‐IR spectroscopic analysis. The optical properties of these π‐conjugated systems were investigated by UV‐visible, absorption and photoluminescence spectroscopy. The UV‐visible titrations show that the Soret and Q bands of the new complexes are red‐shifted compared to those of the starting material species [Zn(TFMPP)] and [Zn(T t BuPP)] and the association constants (K as ) was found to be depending on the withdrawing‐donating effects of the substituents on the phenyls ring of the meso ‐porphyrins. The electrochemical behavior was also investigated and the optical and electrochemical energy gaps were determinate. The electronic properties of the ITO/P i /Al have been defined by I–V characteristics and impedance spectroscopy measurements.