{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,7]],"date-time":"2026-09-07T23:03:11Z","timestamp":1788822191050,"version":"build-2803163510"},"reference-count":20,"publisher":"International Union of Crystallography (IUCr)","issue":"2","license":[{"start":{"date-parts":[[2026,1,29]],"date-time":"2026-01-29T00:00:00Z","timestamp":1769644800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/legalcode"},{"start":{"date-parts":[[2026,1,29]],"date-time":"2026-01-29T00:00:00Z","timestamp":1769644800000},"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":[[2026,1,19]]},"published-print":{"date-parts":[[2026,2,1]]},"abstract":"<jats:p>\n                    The title carbazole derivative, C\n                    <jats:sub>14<\/jats:sub>\n                    H\n                    <jats:sub>11<\/jats:sub>\n                    N\n                    <jats:sub>3<\/jats:sub>\n                    , was prepared by reacting 1-hydroxy-8-methyl-9\n                    <jats:italic>H<\/jats:italic>\n                    -carbazole-2-carbaldehyde with hydrazine hydrate. In the solid state, the fused-ring system is slightly puckered, the dihedral angle between the planes of the outer rings being 2.24\u2005(7)\u00b0. In the crystal, molecules are linked by {N\u2014H}\n                    <jats:sub>2<\/jats:sub>\n                    ...N hydrogen bonds to generate [010] chains, and weak C\u2014H...\u03c0 contacts consolidate the structure. A Hirshfeld surface analysis indicates that the most important contributions to the crystal packing are from H...H (43.1%), C...H\/H...C (36.8%) and N...H\/H...N (15.3%) interactions.\n                  <\/jats:p>","DOI":"10.1107\/s2056989026000502","type":"journal-article","created":{"date-parts":[[2026,1,27]],"date-time":"2026-01-27T08:36:28Z","timestamp":1769502988000},"page":"231-234","update-policy":"https:\/\/doi.org\/10.1107\/cm_01","source":"Crossref","is-referenced-by-count":2,"title":["Synthesis and structure of 9-methyl-1,10-dihydropyrazolo[3,4-\n                    <i>a<\/i>\n                    ]carbazole"],"prefix":"10.1107","volume":"82","author":[{"given":"M.","family":"Sridharan","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9896-186X","authenticated-orcid":true,"given":"Aravazhi Amalan","family":"Thiruvalluvar","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"B. 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