Development of [(2E,6E)-2,6-bis(4-(dimethylamino)benzylidene)cyclohexanone] as fluorescence-on probe for Hg2+ ion detection: Computational aided experimental studies

Recent advances in fluorescent materials for mercury(ii) ion detection

“…Molecules with ICT processes and the ability to coordinate with Hg 2+ ions are usually involved in the above-mentioned mechanism, making them useful Hg 2+ ion sensors. 74–80 For example, Wang et al 81 synthesized a fluorophore with a strong “push–pull” π-electron system, under light excitation, the fluorophore will undergo an ICT from the donor to the acceptor, and the resulting fluorescence has a long emission wavelength due to the large extent of π-electron conjugation. However, when the coordination part (which is also the electron donor) contacts a Hg 2+ ion, its electron donor capacity will be decreased, resulting in the blue shift of absorption and emission spectra due to the decrease in π-electron conjugation.…”

“…Molecules with ICT processes and the ability to coordinate with Hg 2+ ions are usually involved in the above-mentioned mechanism, making them useful Hg 2+ ion sensors. [74][75][76][77][78][79][80] For Fig. 6 Proposed binding of Hg 2+ ions to the sensor.…”

Rapid Detection of Cd2+ Ions in the Aqueous Medium Using a Highly Sensitive and Selective Turn-On Fluorescent Chemosensor

“…The chemosensor CM1/[(2,6-di((E)-benzylidene)-4-methylcyclohexan-1-one)] was synthesized as shown in (Scheme 2) [48][49][50]. Ethanolic solution of benzaldehyde (1.06 g, 10 mmole) and 4-methyl cyclohexanone (0.49 g, 5 mmole) were mixed with continuous addition of sodium hydroxide (40%).…”

An “AIE + ESIPT” mechanism-based benzothiazole-derived fluorescent probe for the detection of Hg2+and its applications

“…5,6 Hg 2+ in air, water, and soil could enter readily into human bodies through the food chain, [7][8][9] leading to a devastating effect on human health such as kidney tissue damage and central nervous system disorders associated with the Minamata incident that occurred in Japan due to mercury-contaminated seafood. 10 In addition, inorganic mercury reagents (Hg and Hg 2+ ) can be readily transformed into more dangerous organic mercury compounds by microorganisms, among which the well-known dimethylmercury [(CH 3 ) 2 Hg] is very poisonous 11 and lethal if even a few microliters come in contact with skin. Consequently, the development of an accurate and efficient method to detect Hg 2+ would be beneficial for clinical diagnosis and toxicity monitoring.…”