{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,1,14]],"date-time":"2025-01-14T05:11:27Z","timestamp":1736831487381,"version":"3.33.0"},"reference-count":16,"publisher":"International Union of Crystallography (IUCr)","issue":"11","license":[{"start":{"date-parts":[[2012,10,1]],"date-time":"2012-10-01T00:00:00Z","timestamp":1349049600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/journals.iucr.org\/services\/copyrightpolicy.html"},{"start":{"date-parts":[[2012,10,1]],"date-time":"2012-10-01T00:00:00Z","timestamp":1349049600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/journals.iucr.org\/services\/copyrightpolicy.html#TDM"}],"content-domain":{"domain":["iucr.org","wiley.com","iucrj.org"],"crossmark-restriction":true},"short-container-title":["Acta Crystallogr C Cryst Struct Commun","Acta Cryst C","Acta Cryst Sect C","Acta Crystallogr C","Acta Crystallogr Sect C","Acta Crystallogr Sect C Cryst Struct Commun"],"published-print":{"date-parts":[[2012,11,15]]},"abstract":"<jats:p>In poly[di-\u03bc-chlorido-\u03bc-(4,4\u2032-bipyridazine)-\u03ba<jats:sup>2<\/jats:sup><jats:italic>N<\/jats:italic><jats:sup>1<\/jats:sup>:<jats:italic>N<\/jats:italic><jats:sup>1\u2032<\/jats:sup>-cadmium(II)], [CdCl<jats:sub>2<\/jats:sub>(C<jats:sub>8<\/jats:sub>H<jats:sub>6<\/jats:sub>N<jats:sub>4<\/jats:sub>)]<jats:sub><jats:italic>n<\/jats:italic><\/jats:sub>, (I), and its isomorphous bromide analogue, [CdBr<jats:sub>2<\/jats:sub>(C<jats:sub>8<\/jats:sub>H<jats:sub>6<\/jats:sub>N<jats:sub>4<\/jats:sub>)]<jats:sub><jats:italic>n<\/jats:italic><\/jats:sub>, (II), the halide atom lies on a mirror plane and the Cd<jats:sup>II<\/jats:sup>ion resides at the intersection of two perpendicular mirror planes with<jats:italic>m<\/jats:italic>2<jats:italic>m<\/jats:italic>site symmetry. The pyridazine rings of the ligand lie in a mirror plane and are related to each other by a second mirror plane perpendicular to the first. The compounds adopt the characteristic structure of the [<jats:italic>M<\/jats:italic><jats:sup>II<\/jats:sup><jats:italic>X<\/jats:italic><jats:sub>2<\/jats:sub>(bipy)] type (bipy is bipyridine) based on crosslinking of [Cd(\u03bc-<jats:italic>X<\/jats:italic>)<jats:sub>2<\/jats:sub>]<jats:sub><jats:italic>n<\/jats:italic><\/jats:sub>chains [Cd\u2014Cl = 2.5955\u2005(9) and 2.6688\u2005(9)\u2005\u00c5; Cd\u2014Br = 2.7089\u2005(4) and 2.8041\u2005(3)\u2005\u00c5] by bitopic rod-like organic ligands [Cd\u2014N = 2.368\u2005(3)\u20132.380\u2005(3)\u2005\u00c5]. This feature is discussed in terms of supramolecular stabilization, implying that the periodicity of the inorganic chain [Cd...Cd = 3.7802\u2005(4)\u2005\u00c5 in (I) and 3.9432\u2005(3)\u2005\u00c5 in (II)] is favourable for extensive parallel \u03c0\u2013\u03c0 stacking of monodentate pyridazine rings, with centroid\u2013centroid distances of 3.7751\u2005(4)\u2005\u00c5 in (I) and 3.9359\u2005(4)\u2005\u00c5 in (II). This is not the case for the longer iodide bridges, which cannot stabilize such a pattern. In poly[tetra-\u03bc-iodido-\u03bc<jats:sub>4<\/jats:sub>-(4,4\u2032-bipyridazine)-\u03ba<jats:sup>4<\/jats:sup><jats:italic>N<\/jats:italic><jats:sup>1<\/jats:sup>:<jats:italic>N<\/jats:italic><jats:sup>2<\/jats:sup>:<jats:italic>N<\/jats:italic><jats:sup>1\u2032<\/jats:sup>:<jats:italic>N<\/jats:italic><jats:sup>2\u2032<\/jats:sup>-dicadmium(II)], [Cd<jats:sub>2<\/jats:sub>I<jats:sub>4<\/jats:sub>(C<jats:sub>8<\/jats:sub>H<jats:sub>6<\/jats:sub>N<jats:sub>4<\/jats:sub>)]<jats:sub><jats:italic>n<\/jats:italic><\/jats:sub>, (III), the ligands are situated across a centre of inversion; they are tetradentate [Cd\u2014N = 2.488\u2005(2) and 2.516\u2005(2)\u2005\u00c5] and link successive [Cd(\u03bc-I)<jats:sub>2<\/jats:sub>]<jats:sub><jats:italic>n<\/jats:italic><\/jats:sub>chains [Cd\u2014I = 2.8816\u2005(3)\u20133.0069\u2005(4)\u2005\u00c5] into corrugated layers.<\/jats:p>","DOI":"10.1107\/s0108270112038048","type":"journal-article","created":{"date-parts":[[2012,10,1]],"date-time":"2012-10-01T13:57:22Z","timestamp":1349099842000},"page":"m295-m299","update-policy":"https:\/\/doi.org\/10.1107\/cm_01","source":"Crossref","is-referenced-by-count":2,"title":["Cadmium(II) chloride, bromide and iodide complexes with 4,4\u2032-bipyridazine: when are diazine and halide bridges (in)compatible?"],"prefix":"10.1107","volume":"68","author":[{"given":"Konstantin V.","family":"Domasevitch","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Julia A.","family":"Rusanova","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ilya A.","family":"Gural'skiy","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Pavlo V.","family":"Solntsev","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"329","published-online":{"date-parts":[[2012,10,1]]},"reference":[{"key":"eg3098_bb1","doi-asserted-by":"crossref","first-page":"380","DOI":"10.1107\/S0108768102003890","volume":"58","author":"Allen","year":"2002","journal-title":"Acta Cryst. 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