{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,11]],"date-time":"2026-04-11T17:48:15Z","timestamp":1775929695486,"version":"3.50.1"},"reference-count":55,"publisher":"MDPI AG","issue":"21","license":[{"start":{"date-parts":[[2022,11,5]],"date-time":"2022-11-05T00:00:00Z","timestamp":1667606400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Russian Science Foundation","award":["22-13-00064"],"award-info":[{"award-number":["22-13-00064"]}]},{"name":"Russian Science Foundation","award":["(State Assignment FSRC \u201cCrystallography and Photonics\u201d of RAS)"],"award-info":[{"award-number":["(State Assignment FSRC \u201cCrystallography and Photonics\u201d of RAS)"]}]},{"DOI":"10.13039\/501100012190","name":"Ministry of Science and Higher Education of the Russian Federation","doi-asserted-by":"publisher","award":["22-13-00064"],"award-info":[{"award-number":["22-13-00064"]}],"id":[{"id":"10.13039\/501100012190","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100012190","name":"Ministry of Science and Higher Education of the Russian Federation","doi-asserted-by":"publisher","award":["(State Assignment FSRC \u201cCrystallography and Photonics\u201d of RAS)"],"award-info":[{"award-number":["(State Assignment FSRC \u201cCrystallography and Photonics\u201d of RAS)"]}],"id":[{"id":"10.13039\/501100012190","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Molecules"],"abstract":"<jats:p>A series of symmetrical dibenzylidene derivatives of cyclobutanone were synthesized with the goal of studying the physicochemical properties of cross-conjugated dienones (ketocyanine dyes). The structures of the products were established and studied by X-ray diffraction and by NMR and electronic spectroscopy. All the products had E,E-geometry. The oxidation and reduction potentials of the dienones were determined by cyclic voltammetry. The potentials were shown to depend on the nature, position, and number of substituents in the benzene rings. A linear correlation was found between the difference of the electrochemical oxidation and reduction potentials and the energy of the long-wavelength absorption maximum. This correlation can be employed to analyze the properties of other compounds of this type. Quantum chemistry was used to explain the observed regularities in the electrochemistry, absorption, and fluorescence of the dyes. The results are in good agreement with the experimental redox potentials and spectroscopy data.<\/jats:p>","DOI":"10.3390\/molecules27217602","type":"journal-article","created":{"date-parts":[[2022,11,7]],"date-time":"2022-11-07T03:02:22Z","timestamp":1667790142000},"page":"7602","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Synthesis, Structure and Photochemistry of Dibenzylidenecyclobutanones"],"prefix":"10.3390","volume":"27","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9401-7118","authenticated-orcid":false,"given":"Marina V.","family":"Fomina","sequence":"first","affiliation":[{"name":"Photochemistry Center of RAS, FSRC \u201cCrystallography and Photonics\u201d, Russian Academy of Sciences, Novatorov Str. 7A-1, 119421 Moscow, Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7473-7692","authenticated-orcid":false,"given":"Alexandra Y.","family":"Freidzon","sequence":"additional","affiliation":[{"name":"Photochemistry Center of RAS, FSRC \u201cCrystallography and Photonics\u201d, Russian Academy of Sciences, Novatorov Str. 7A-1, 119421 Moscow, Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lyudmila G.","family":"Kuz\u2019mina","sequence":"additional","affiliation":[{"name":"N.S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskiy Prosp. 31, 119991 Moscow, Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5728-1179","authenticated-orcid":false,"given":"Anna A.","family":"Moiseeva","sequence":"additional","affiliation":[{"name":"Department of Chemistry, M.V. Lomonosov Moscow State University, 119991 Moscow, Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Roman O.","family":"Starostin","sequence":"additional","affiliation":[{"name":"Department of Chemistry, M.V. Lomonosov Moscow State University, 119991 Moscow, Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nikolai A.","family":"Kurchavov","sequence":"additional","affiliation":[{"name":"Photochemistry Center of RAS, FSRC \u201cCrystallography and Photonics\u201d, Russian Academy of Sciences, Novatorov Str. 7A-1, 119421 Moscow, Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0915-7894","authenticated-orcid":false,"given":"Vyacheslav N.","family":"Nuriev","sequence":"additional","affiliation":[{"name":"Photochemistry Center of RAS, FSRC \u201cCrystallography and Photonics\u201d, Russian Academy of Sciences, Novatorov Str. 7A-1, 119421 Moscow, Russia"},{"name":"Department of Chemistry, M.V. Lomonosov Moscow State University, 119991 Moscow, Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2542-7807","authenticated-orcid":false,"given":"Sergey P.","family":"Gromov","sequence":"additional","affiliation":[{"name":"Photochemistry Center of RAS, FSRC \u201cCrystallography and Photonics\u201d, Russian Academy of Sciences, Novatorov Str. 7A-1, 119421 Moscow, Russia"},{"name":"Department of Chemistry, M.V. Lomonosov Moscow State University, 119991 Moscow, Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2022,11,5]]},"reference":[{"key":"ref_1","unstructured":"Adams, R. (1959). Organic Reactions, Wiley & Sons, Inc."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"707","DOI":"10.1070\/RC2008v077n08ABEH003771","article-title":"Chemistry of cross-conjugated dienones","volume":"77","author":"Vatsadze","year":"2008","journal-title":"Russ. Chem. 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