Bhagwat, Archana A.; Sekar, Nagaiyan published an article on January 31 ,2019. The article was titled 《Fluorescent 7-Substituted Coumarin Dyes: Solvatochromism and NLO Studies》, and you may find the article in Journal of Fluorescence.Related Products of 139102-37-7 The information in the text is summarized as follows:
The effect of three substituents N,N-diethylamine, carbazole and diphenylamine at the 7 position of coumarin on linear and nonlinear optical properties are studied using absorption and emission solvatochromism, and DFT. By varying the substituent 53 nm red shift is achieved in emission. The polarity plots with regression close to unity revealed good charge transfer in the system. Solvent polarizability and dipolarity are mainly responsible for solvatochromic shift as proved by multilinear regression anal. General Mulliken Hush anal. shows diphenylamine substituent leads to more charge separation in compound 6c. The hyperpolarizabilities are evaluated by quantum mech. calculations Structure of the compounds are optimized at B3LYP/6-31G(d) level and NLO computations are done using range separated hybrid functionals with large basis sets. Second order hyperpolarizability (γ) found 589.27 x 10-36, 841.29 x 10-36 and 1043.00 x 10-36 e.s.u for the compounds 6a, 6b and 6c resp. In the experiment, the researchers used 4-Iodo-2-methoxybenzaldehyde(cas: 139102-37-7Related Products of 139102-37-7)
4-Iodo-2-methoxybenzaldehyde(cas: 139102-37-7) belongs to organic iodides. Alkyl iodides react at a faster rate than alkyl fluorides due to the weak C-I bond.Related Products of 139102-37-7Iodo alkanes participate in a variety of organic synthesis reactions, which include the SimmonsSmith reaction (cyclopropanation using iodomethane), Williamson ether synthesis, Wittig reaction, Grignard reaction, alkyl coupling reactions, and Wurtz reaction.
Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com