{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,19]],"date-time":"2025-10-19T18:21:41Z","timestamp":1760898101474,"version":"build-2065373602"},"reference-count":27,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2011,10,17]],"date-time":"2011-10-17T00:00:00Z","timestamp":1318809600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Luminescence"],"published-print":{"date-parts":[[2012,9]]},"abstract":"<jats:title>ABSTRACT<\/jats:title><jats:p>A series of novel 2\u2010aryl\u20103\u2010ethoxycarbonyl\u20104\u2010phenylpyrido[1,2\u2010a]benzimidazole derivatives were synthesized by the tandem reaction of 2\u2010benzoyl benzimidazole and (<jats:italic>Z<\/jats:italic>)\u2010ethyl 4\u2010bromo\u20103\u2010arylbut\u20102\u2010enoate in the presence of potassium carbonate. The compounds were characterized using IR, <jats:sup>1<\/jats:sup>H\u2010NMR, <jats:sup>13<\/jats:sup>C\u2010NMR, HRMS and the structure of 6f was further determined by X\u2010ray crystallography. Both absorption and fluorescence spectra characteristics of the compounds were investigated in acetonitrile and dichloromethane. The results showed that the absorption maxima of the compounds varied from 220 to 284\u2009nm, depending on the structure of 2\u2010aryl group. The fluorescence results revealed that these compounds exhibited blue\u2010green fluorescence (463\u2013475\u2009nm) in dilute solutions and showed acceptable fluorescence quantum yields (<jats:italic>\u0424<\/jats:italic><jats:sub>PL<\/jats:sub>\u2009=\u20090.13\u20130.73) in dichloromethane. Copyright \u00a9 2011 John Wiley &amp; Sons, Ltd.<\/jats:p>","DOI":"10.1002\/bio.1362","type":"journal-article","created":{"date-parts":[[2011,10,17]],"date-time":"2011-10-17T02:49:37Z","timestamp":1318819777000},"page":"382-389","source":"Crossref","is-referenced-by-count":9,"title":["Synthesis, X\u2010ray crystal structure and optical properties of novel 2\u2010aryl\u20103\u2010ethoxycarbonyl\u20104\u2010phenylpyrido[1,2\u2010a]benzimidazoles"],"prefix":"10.1002","volume":"27","author":[{"given":"Xia","family":"Chen","sequence":"first","affiliation":[{"name":"School of Chemistry and Chemical Engineering Shandong University  Jinan 250100 Shandong People's Republic of China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"He","family":"Yang","sequence":"additional","affiliation":[{"name":"School of Chemistry and Chemical Engineering Shandong University  Jinan 250100 Shandong People's Republic of 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