Study of the Microenvironment Effects on TCNQ with Spectrum Technology
|Keywords||TCNQ Solvent effect Spectroelectrochemical Electrochromic|
7,7,8,8 - tetracyanoborate on the the quinone methane (TCNQ) with a variety of different metals or compounds to form a variety of complex film with good optical and electrical properties , and has a lot of potential , and therefore has been much attention. Most of TCNQ related research in a variety of solution or outfield , the paper focuses on these microenvironmental changes of TCNQ made ??a systematic study . The use of infrared spectroscopy to study the impact of different solvents on the TCNQ in the vibration frequency of the cyano . Found that with the increasing number of solvent receptor the cyano vibration frequency decreases , and the use of donor - acceptor model LSER relationship explained this phenomenon ; using UV-visible spectroscopy studies TCNQ solvatochromic effect . Found that with increasing solvent polarity π → π * sup > transition energy difference increases, the absorption band blue shift ; laboratory- developed UV / Raman dual-use spectroelectrochemical thin layer pool as the carrier , the use of UV-visible spectra of electrochemical techniques to study the impact of the applied electric field TCNQ . We found that the DMF solution of TCNQ energized after a certain time to change from deep green to orange, has obvious electrically photochromic properties . We believe that TCNQ under an electric field gradually converted to TCNQ- with TCNQ 2 - SUP > , while TCNQ 2 - sup> DCTC - oxidation in the presence of oxygen under the conditions of this series of reactions lead corresponding to a continuous change of the absorption band in the ultraviolet spectrum .