{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,5]],"date-time":"2026-09-05T02:56:35Z","timestamp":1788576995216,"version":"build-2803163510"},"reference-count":16,"publisher":"MDPI AG","issue":"17","license":[{"start":{"date-parts":[[2019,9,2]],"date-time":"2019-09-02T00:00:00Z","timestamp":1567382400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100006769","name":"Russian Science Foundation","doi-asserted-by":"publisher","award":["18\u201073\u201000148 (mol)"],"award-info":[{"award-number":["18\u201073\u201000148 (mol)"]}],"id":[{"id":"10.13039\/501100006769","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Molecules"],"abstract":"<jats:p>A synthetic approach to a new group of stable chiral C2-symmetric diimines with the 4,5-diazafluorene core has been developed based on condensation of dipinodiazafluorene with aromatic diamines. The chemical structures of new compounds were proven by spectroscopic methods and X-ray crystallography. All the compounds form solvates with organic solvents (chloroform, benzene, 1,4-dioxane) and water. Specific spectral data of the new compounds are explained using calculated data (DFT). Diimines of the pinodiazafluorene series give colored reactions with transition metal ions and can be regarded as prospective polydentate ligands with interesting luminescent and chiroptical properties.<\/jats:p>","DOI":"10.3390\/molecules24173186","type":"journal-article","created":{"date-parts":[[2019,9,3]],"date-time":"2019-09-03T03:06:14Z","timestamp":1567479974000},"page":"3186","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Chiral C2-Symmetric Diimines with 4,5-Diazafluorene Units"],"prefix":"10.3390","volume":"24","author":[{"given":"Eugene S.","family":"Vasilyev","sequence":"first","affiliation":[{"name":"N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of Russian Academy of Sciences, 9 Academician Lavrentiev Ave., Novosibirsk 630090, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sergey N.","family":"Bizyaev","sequence":"additional","affiliation":[{"name":"N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of Russian Academy of Sciences, 9 Academician Lavrentiev Ave., Novosibirsk 630090, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7519-1719","authenticated-orcid":false,"given":"Vladislav Yu.","family":"Komarov","sequence":"additional","affiliation":[{"name":"Nikolaev Institute of Inorganic Chemistry, Siberian Branch of Russian Academy of Sciences, Novosibirsk 630090, Russia"},{"name":"Department of Natural Sciences, Novosibirsk State University, Novosibirsk 630090, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yury V.","family":"Gatilov","sequence":"additional","affiliation":[{"name":"N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of Russian Academy of Sciences, 9 Academician Lavrentiev Ave., Novosibirsk 630090, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alexey V.","family":"Tkachev","sequence":"additional","affiliation":[{"name":"N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of Russian Academy of Sciences, 9 Academician Lavrentiev Ave., Novosibirsk 630090, Russia"},{"name":"Department of Natural Sciences, Novosibirsk State University, Novosibirsk 630090, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2019,9,2]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"5289","DOI":"10.1039\/C8CC01071D","article-title":"Long-lived charge separation in dye\u2013semiconductor assemblies: A pathway to multi-electron transfer reactions","volume":"54","author":"Sundin","year":"2018","journal-title":"Chem. 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