{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,23]],"date-time":"2026-10-23T20:13:04Z","timestamp":1792786384526,"version":"4.5.0"},"reference-count":12,"publisher":"International Union of Crystallography (IUCr)","issue":"7","license":[{"start":{"date-parts":[[2026,6,26]],"date-time":"2026-06-26T00:00:00Z","timestamp":1782432000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/legalcode"},{"start":{"date-parts":[[2026,6,26]],"date-time":"2026-06-26T00:00:00Z","timestamp":1782432000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/legalcode"}],"funder":[{"name":"Budget funding of Termez State University and Base funding of the Institute of Bioorganic Chemistry AS Uzbekistan","id":[{"id":"https:\/\/ror.org\/05416zy49","id-type":"ROR","asserted-by":"crossref"}]}],"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":[[2026,6,18]]},"published-print":{"date-parts":[[2026,7,1]]},"abstract":"<jats:p>\n                    The title compound, bis(\u03bc-2-carboxy-4-nitrobenzoato-\u03ba\n                    <jats:sup>2<\/jats:sup>\n                    <jats:italic>O<\/jats:italic>\n                    <jats:sup>1<\/jats:sup>\n                    :\n                    <jats:italic>O<\/jats:italic>\n                    <jats:sup>1\u2032<\/jats:sup>\n                    )bis[bis(1,10-phenanthroline-\u03ba\n                    <jats:sup>2<\/jats:sup>\n                    <jats:italic>N<\/jats:italic>\n                    ,\n                    <jats:italic>N<\/jats:italic>\n                    \u2032)cobalt(II)] bis(2-carboxy-4-nitrobenzoate) tetrahydrate, [Co\n                    <jats:sub>2<\/jats:sub>\n                    (C\n                    <jats:sub>8<\/jats:sub>\n                    H\n                    <jats:sub>4<\/jats:sub>\n                    NO\n                    <jats:sub>6<\/jats:sub>\n                    )\n                    <jats:sub>2<\/jats:sub>\n                    (C\n                    <jats:sub>12<\/jats:sub>\n                    H\n                    <jats:sub>8<\/jats:sub>\n                    N\n                    <jats:sub>2<\/jats:sub>\n                    )\n                    <jats:sub>4<\/jats:sub>\n                    ](C\n                    <jats:sub>8<\/jats:sub>\n                    H\n                    <jats:sub>4<\/jats:sub>\n                    NO\n                    <jats:sub>6<\/jats:sub>\n                    )\n                    <jats:sub>2<\/jats:sub>\n                    \u00b74H\n                    <jats:sub>2<\/jats:sub>\n                    O, comprises a centrosymmetric dinuclear cobalt(II) complex dication, two hydrogen 4-nitrophthalate anions and four water molecules of crystallization. The two Co\n                    <jats:sup>II<\/jats:sup>\n                    atoms are linked by two \u03bc-hydrogen 4-nitrophthalato ligands, generating a centrosymmetric dinuclear unit. Each cobalt(II) centre adopts a distorted octahedral coordination geometry defined by four N atoms from two chelating 1,10-phenanthroline ligands and two O atoms from two symmetry-related bridging hydrogen 4-nitrophthalate ligands. In the crystal, O\u2014H...O and C\u2014H...O hydrogen bonds link the ionic components into a three-dimensional supramolecular framework, which is further reinforced by aromatic \u03c0\u2013\u03c0 stacking interactions between neighbouring phenanthroline and hydrogen 4-nitrophthalate rings, with centroid-to-centroid separations ranging from 3.501\u2005(5) to 3.687\u2005(4)\u2005\u00c5. Hirshfeld surface analysis shows that O...H\/H...O contacts make the largest contribution (38.1%) to the crystal packing, confirming the dominant role of hydrogen bonding in consolidating the crystal structure.\n                  <\/jats:p>","DOI":"10.1107\/s2056989026006419","type":"journal-article","created":{"date-parts":[[2026,6,26]],"date-time":"2026-06-26T09:32:18Z","timestamp":1782466338000},"page":"862-865","update-policy":"https:\/\/doi.org\/10.1107\/cm_01","source":"Crossref","is-referenced-by-count":0,"title":["A new supramolecular cobalt(II) complex based on 1,10-phenanthroline and 4-nitrophthalate ligands"],"prefix":"10.1107","volume":"82","author":[{"given":"Naima","family":"Karimova","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maftuna","family":"Primkulova","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5668-6943","authenticated-orcid":true,"given":"Lidiya","family":"Izotova","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gulvar","family":"Muqumova","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jabbor","family":"Suyunov","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nurmuhammad","family":"Boltayev","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"329","published-online":{"date-parts":[[2026,6,26]]},"reference":[{"key":"nx2037_bb1","unstructured":"Agilent (2014). 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