SYNTHESIS AND PHOTOVOLTAIC PROPERTIES OF SYMMETRIC BIS-AZOMETHINES WITH ACCEPTOR SUBSTITUENTS IN THE 4,4’-POSITION: DOI: https://doi.org/10.17721/1728-2209.2019.1(56).9. (2019). Bulletin of the Taras Shevchenko National University of Kyiv. Chemistry, 56(1), 36-39. https://chemistry.bulletin.knu.ua/article/view/8366