Recent Progress in Optically-Active Phthalocyanines and Their Related Azamacrocycles

“…The application of metal porphyrins and phthalocyanines as active sensing layers in chemiresistive, optical, quartz crystal microbalance (QCM) and electrochemical sensors are widely described in the literature [ 61 , 62 , 63 ]. This interest is related to the ability of porphyrins and phthalocyanines to form complexes with most metal ions, thereby providing rich and diverse coordination chemistry.…”

Section: Sensing Layers For Detecting No In Aqueous Mediamentioning

confidence: 99%

Recent Advances in Phthalocyanine and Porphyrin-Based Materials as Active Layers for Nitric Oxide Chemical Sensors

Klyamer

Shutilov

Basova

2022

Sensors

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Nitric oxide (NO) is a highly reactive toxic gas that forms as an intermediate compound during the oxidation of ammonia and is used for the manufacture of hydroxylamine in the chemical industry. Moreover, NO is a signaling molecule in many physiological and pathological processes in mammals, as well as a biomarker indicating the course of inflammatory processes in the respiratory tract. For this reason, the detection of NO both in the gas phase and in the aqueous media is an important task. This review analyzes the state of research over the past ten years in the field of applications of phthalocyanines, porphyrins and their hybrid materials as active layers of chemical sensors for the detection of NO, with a primary focus on chemiresistive and electrochemical ones. The first part of the review is devoted to the study of phthalocyanines and porphyrins, as well as their hybrids for the NO detection in aqueous solutions and biological media. The second part presents an analysis of works describing the latest achievements in the field of studied materials as active layers of sensors for the determination of gaseous NO. It is expected that this review will further increase the interest of researchers who are engaged in the current level of evaluation and selection of modern materials for use in the chemical sensing of nitric oxide.

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“…[16][17][18][19][20] In particular, the introduction of optically active binaphthyl units as bridges deserves special mention since they lead to optically active Pcs thanks to the intrinsic atropisomerism of the binaphthol subunit. 1,[17][18][19][20][33][34][35] Binaphthyl-containing Pcs were formerly described by Kobayashi and co-workers, 33 and, since then, several Pcs and related compounds endowed with optically pure binaphthyl cores have been prepared, most of them presenting an unsymmetric functionalization of the Pc core in an AABB pattern (AA coding for the binaphthol-linked diisoindole part) (Fig. 1).…”

Section: Introductionmentioning

confidence: 99%