Synthesis and structure property relationship of several dicyanomethylene malononitrile derivatives

Juan Du; Yu Wang; Yuxia Zhao; Feipeng Wu

doi:10.1117/12.2241720

25 October 2016 Synthesis and structure property relationship of several dicyanomethylene malononitrile derivatives

Juan Du, Yu Wang, Yuxia Zhao, Feipeng Wu

Proceedings Volume 9686, 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices; 96860Q (2016) https://doi.org/10.1117/12.2241720
Event: Eighth International Symposium on Advanced Optical Manufacturing and Testing Technology (AOMATT2016), 2016, Suzhou, China

Abstract

Based on the intramolecular charge-transfer (ICT) molecule 2-[bis-(4'-diethylamino-biphenyl-4-yl)-methylene]- malononitrile (D7), two novel malononitrile derivatives (C1 and C2) with 2,7- and 3,6-substituted fluorene as conjugated backbones, respectively, were synthesized, which had the same electro-donor and acceptor groups as D7. The effects of the conjugated backbone and substitution site on optical properties of these compounds were investigated. 3,6-substituted fluorene is a better conjugated unit for ICT compared to 2,7 substitution site, whereas it is still weaker than diphenylmethyl unit in D7. However, due to the rigidity of fluorene, C2 possesses much higher fluorescence quantum yield. The results are supported by TD-DFT calculation. This study develops theoretical basis for designing effective optical or electronic materials.

Citation Download Citation

Juan Du, Yu Wang, Yuxia Zhao, and Feipeng Wu "Synthesis and structure property relationship of several dicyanomethylene malononitrile derivatives", Proc. SPIE 9686, 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices, 96860Q (25 October 2016); https://doi.org/10.1117/12.2241720

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available