Three ester derivatives of tetracyanoquinodimethane and their CT complexes were synthesized and characterized by elementary analysis and infrared spectra. The principal infrared absorption peaks were assigned and discussed for the region of 4000-400 cm(-1). Principal factors affecting principal infrared absorption were analyzed.
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Materials (Basel)
November 2024
Institute of Chemistry, Jan Kochanowski University, Uniwersytecka St. 7G, PL-25406 Kielce, Poland.
7,7',8,8'-tetracyanoquinodimethane (TCNQ) is one of the most widely used effective surface electron acceptors in organic electronics and sensors, which opens up a very interesting field in electrochemical applications. In this review article, we outline the historical context of electrochemically stable selective electrode materials based on TCNQ and its derivatives and their development, their electrochemical characteristics, and the experimental aspects of their electrochemical applications. TCNQ-modified electrodes are characterized by long-term stability, reproducibility, and a low detection limit compared to other sensors; thus, their use can increase determination speed and flexibility and reduce investigation costs.
View Article and Find Full Text PDFSmall
December 2024
Institute of Frontier Chemistry, School of Chemistry and Chemical Engineering, Shandong University, Qingdao, 266237, China.
The exploration of potassium metal batteries (PMBs) has been intensified, leveraging potassium's abundant availability, low redox potential, and small Stokes radius. Covalent triazine frameworks (CTFs) stand out for their accessible nitrogen sites and customizable structures, making them attractive electrode materials. Nonetheless, there is a lack of established design principles to guide the development of high-performance PMBs using CTFs.
View Article and Find Full Text PDFJ AOAC Int
November 2024
Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia.
Background: Reboxetine (RBX) is the first FDA-approved antidepressant drug of the selective noradrenaline reuptake inhibitors class. There is a serious need for a convenient analytical tool for the quantitation of RBX in its dosage form.
Objective: This study aims toward the development and validation of two green and high-throughput microwell spectrometric platforms for the pharmaceutical analysis of RBX.
Chemistry
May 2024
Univ Angers, CNRS, MOLTECH-Anjou, SFR MATRIX, F-, 49000, Angers, France.
Within this work we have investigated spiro-based tetrathiafulvalenes (TTFs) obtained as mixtures of stereoisomers from racemic spiro[5.5]undeca-1,8-dien-3-one. Compared to previously described spiro-TTFs, enantiomeric and diastereoisomeric forms have been here separated by chiral HPLC and fully characterized both experimentally and theoretically.
View Article and Find Full Text PDFACS Omega
October 2023
Department of Chemistry, Birla Institute of Technology and Science, Pilani-Hyderabad Campus, Jawaharnagar, Kapra Mandal, Hyderabad 500078, Telangana State, India.
Currently, very few dicyano and tetracyanoquinodimethane (TCNQ) based molecules are utilized as active layers, sandwiched between the electron and hole transport layer in organic solar cell (OSC) devices. Nevertheless, simple mono- and disubstituted TCNQ derivatives as exclusively active layers are yet unexplored and provide scope for further investigation. In this study, TCNQ derivatives with varying amine substituents, namely, AEPYDQ (), BMEDDQ (), MATBTCNQ (), and MITATCNQ (), were explored as efficient standalone, flexible, all small molecule OSC devices.
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