Synthesis and studies of new photochromic spiropyrans containing a formylcoumarin fragment


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Аннотация

A computer search for new photoactive compounds among indoline spiropyrans of coumarin series was carried out using DFT B3LYP/6-31G(d,p) method. Based on the data obtained, the spiropyrans containing a formylcoumarin fragment annulated to the 2H-pyran ring and possessing photochromic properties were synthesized. The structure and photochromism of these compounds were studied by 1H NMR, IR, and UV/Vis spectroscopy. The introduction of a formyl group into the coumarin moiety of spiropyrans led to a bathochromic shift of the long wavelength absorption maxima of merocyanine isomers, as well as to a considerable increase in their lifetime.

Авторлар туралы

O. Nikolaeva

Institute of Physical and Organic Chemistry, Southern Federal University

Email: aled@ipoc.sfedu.ru
Ресей, 194/2 prosp. Stachki, Rostov on Don, 344090

A. Metelitsa

Institute of Physical and Organic Chemistry, Southern Federal University

Email: aled@ipoc.sfedu.ru
Ресей, 194/2 prosp. Stachki, Rostov on Don, 344090

A. Cheprasov

Southern Scientific Center, Russian Academy of Sciences, 41 ul. Chekhova

Email: aled@ipoc.sfedu.ru
Ресей, Rostov on Don, 344006

O. Karlutova

Institute of Physical and Organic Chemistry, Southern Federal University

Email: aled@ipoc.sfedu.ru
Ресей, 194/2 prosp. Stachki, Rostov on Don, 344090

A. Starikov

Southern Scientific Center, Russian Academy of Sciences, 41 ul. Chekhova

Email: aled@ipoc.sfedu.ru
Ресей, Rostov on Don, 344006

A. Dubonosov

Southern Scientific Center, Russian Academy of Sciences, 41 ul. Chekhova

Хат алмасуға жауапты Автор.
Email: aled@ipoc.sfedu.ru
Ресей, Rostov on Don, 344006

V. Bren´

Institute of Physical and Organic Chemistry, Southern Federal University

Email: aled@ipoc.sfedu.ru
Ресей, 194/2 prosp. Stachki, Rostov on Don, 344090

V. Minkin

Institute of Physical and Organic Chemistry, Southern Federal University; Southern Scientific Center, Russian Academy of Sciences, 41 ul. Chekhova

Email: aled@ipoc.sfedu.ru
Ресей, 194/2 prosp. Stachki, Rostov on Don, 344090; Rostov on Don, 344006

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