Recent advances in the nonlinear optical (NLO) properties of phthalocyanines: A review
Nural Yahya
Phthalocyanines (Pcs) are robust macrocycles dyes, exhibiting high thermal, chemical, and photostability due to the extensive x conjugation. This dye class has found a wide application in numerous fields because of its structural flexibility and the possibility of incorporating various organic and inorganic elements into the Pcs framework. The Pcs also offer the possibility to obtain high-performance materials via the tuning of specific properties. The easiness of synthesis, aromaticity, and structural versatility are the advantages that make Pcs a promising material for numerous applications. This review will focus on recent advances of Pcs for NLO applications.
Synthesis of novel acylthioureas bearing naphthoquinone moiety as dual sensor for high-performance naked-eye colorimetric and fluorescence detection of CN− and F− ions and its application in water and food samples
Nural, Yahya | Karasu, Elize | Efeoglu, Cagla
In this study, six new acylthiourea, bearing naphthoquinone moiety, sensors were synthesized in high yield (88-96%) and characterized using H-1/C-13 NMR, FT-IR and HRMS techniques. All synthesized sensors (4a-f) showed shifts in absorbance and colorimetric changes by CN-, F-, AcO-, and H2PO4-. However, 4e showed a chromogenic different sensitivity response to CN- and F- against competing anions such as AcO- and H2PO4- in DMSO. Furthermore, CN- added 4e showed an increase at the emission intensity and intensive fluorimetric color change was observed in UV-light (lambda ex. 365 nm). All sensors showed chromogenic selectivity towards CN- in aqueous solutions (in DMSO/H2O: 1:1, v/v). Interaction mechanisms between 4e and CN- and F- anions were investigated by experimental studies using various...
Hydrazone-based chemosensors for the detection of environmentally and biologically relevant anions and neutral species: A critical review
Gul, Afroz | Nural, Yahya
Anions and neutral molecules are biologically important chemical species, and they have a wide range of applications in industrial, agricultural and pharmaceutical sectors. Exposure to certain anions and neutral species at levels above permissible limits results in environmental pollution and adverse effects on living organisms. Their practical, accurate, sensitive and, where possible, in situ detection necessitates the use of analytical tools such as chemosensors that are easy to design and operationally practical. Heteroatomic chemosensors are widely used because they can interact with anions and neutral compounds with high selectivity using different bonding modes. This review discusses the application of hydrazone-based chemosensors for the determination and identification of anions an...