{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,30]],"date-time":"2026-07-30T11:33:19Z","timestamp":1785411199224,"version":"3.56.0"},"reference-count":22,"publisher":"International Union of Crystallography (IUCr)","issue":"1","license":[{"start":{"date-parts":[[2026,1,1]],"date-time":"2026-01-01T00:00:00Z","timestamp":1767225600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/legalcode"},{"start":{"date-parts":[[2026,1,1]],"date-time":"2026-01-01T00:00:00Z","timestamp":1767225600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/legalcode"}],"content-domain":{"domain":["iucr.org","wiley.com","iucrj.org"],"crossmark-restriction":true},"short-container-title":["Acta Crystallogr E Cryst Commun","Acta Cryst E","Acta Cryst Sect E","Acta Crystallogr E","Acta Crystallogr Sect E","Acta Cryst E Cryst Commun","Acta Cryst Sect E Cryst Commun"],"accepted":{"date-parts":[[2025,12,2]]},"published-print":{"date-parts":[[2026,1,1]]},"abstract":"<jats:p>\n                    The two molecules in the asymmetric unit of the title compound, C\n                    <jats:sub>17<\/jats:sub>\n                    H\n                    <jats:sub>16<\/jats:sub>\n                    N\n                    <jats:sub>2<\/jats:sub>\n                    O, have a structural overlap with a root-mean-square deviation of 1.11\u2005\u00c5. Both seven-membered cycloheptene rings adopt a chair conformation. Reciprocal intermolecular N\u2014H...O hydrogen bonds between neighbouring molecules lead to the consolidation of their molecular conformations. Weak C\u2014H...\u03c0 interactions between neighbouring molecules are also present in the crystal. The intermolecular interactions were quantified and analysed using Hirshfeld surface analysis, revealing that H...H interactions contribute the most to the crystal packing (45.4%).\n                  <\/jats:p>","DOI":"10.1107\/s2056989025010771","type":"journal-article","created":{"date-parts":[[2025,12,3]],"date-time":"2025-12-03T07:52:47Z","timestamp":1764748367000},"page":"47-50","update-policy":"https:\/\/doi.org\/10.1107\/cm_01","source":"Crossref","is-referenced-by-count":0,"title":["Crystal structure and Hirshfeld surface analysis of 2-oxo-4-phenyl-2,5,6,7,8,9-hexahydro-1\n                    <i>H<\/i>\n                    -cyclohepta[\n                    <i>b<\/i>\n                    ]pyridine-3-carbonitrile"],"prefix":"10.1107","volume":"82","author":[{"given":"Uthirapathi","family":"Rajapandiyan","sequence":"first","affiliation":[{"id":[{"id":"https:\/\/ror.org\/01x24z140","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Muruganandham","family":"Rajkumar","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/01x24z140","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Haridoss","family":"Manikandan","sequence":"additional","affiliation":[{"id":[{"id":"https:\/\/ror.org\/01x24z140","id-type":"ROR","asserted-by":"publisher"}]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Velusamy","family":"Rajathi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sivashanmugam","family":"Selvanayagam","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"329","published-online":{"date-parts":[[2026,1,1]]},"reference":[{"key":"wm5777_bb1","doi-asserted-by":"crossref","first-page":"515","DOI":"10.1002\/ardp.201400004","volume":"347","author":"Belal","year":"2014","journal-title":"Arch. 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