Nonlinear optical behavior of two tetrathiafulvalene derivatives in the picosecond regime

作者：Marcovicz Crislaine; Ferreira Rudson C; Santos Arthur B S; Reyna Albert S; de Araujo Cid B; Malvestiti Ivani; Falcao Eduardo H L^*

来源：Chemical Physics Letters, 2018, 702: 16-20.

DOI：10.1016/j.cplett.2018.04.053

• Tetrathiafulvalenederivative
• Microwave synthesis
• Nonlinear optical materials
• Z-scan

We report the microwave-assisted synthesis of two symmetrical tetrathiafulvalene (TTF) derivatives via trialkyl phosphite-promoted coupling of a DMIT precursor. The microwave irradiation led to an increase in the reaction yield and significantly reduced the reaction time, affording the 2,3,6,7-tetrakis(2'-methy lacetatethio) tetrathiafulvalene (4) in 74% isolated yield. Hydrolysis of 4 yielded the tetraacid 5 in excellent yield. The nonlinear optical properties of both TTF compounds at 532 nm were studied by using the Z-scan technique in the picosecond regime exhibiting large third-order refractive index and saturated nonlinear absorption with promising applications in optical limiting devices.

• 出版日期2018-6-16