{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,1,13]],"date-time":"2025-01-13T11:40:08Z","timestamp":1736768408844,"version":"3.32.0"},"reference-count":31,"publisher":"International Union of Crystallography (IUCr)","issue":"10","license":[{"start":{"date-parts":[[2015,9,26]],"date-time":"2015-09-26T00:00:00Z","timestamp":1443225600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/2.0\/uk\/legalcode"},{"start":{"date-parts":[[2015,9,26]],"date-time":"2015-09-26T00:00:00Z","timestamp":1443225600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/2.0\/uk\/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"],"published-print":{"date-parts":[[2015,10,1]]},"abstract":"<jats:p>The title compound, C<jats:sub>44<\/jats:sub>H<jats:sub>35<\/jats:sub>N<jats:sub>4<\/jats:sub>O<jats:sub>3<\/jats:sub>\u00b72.5C<jats:sub>6<\/jats:sub>H<jats:sub>6<\/jats:sub>(<jats:bold>1<\/jats:bold>), consists of a terpyridine and a<jats:italic>N<\/jats:italic>-oxylpyrroline-3-formate group separated by an aromatic spacer,<jats:italic>viz.<\/jats:italic>4-(phenylethynyl)-1,1\u2032-biphenyl. It crystallized in the triclinic space group<jats:italic>P<\/jats:italic>-1 with two and a half benzene solvate molecules (one benzene molecule is located about an inversion center), while the dichloromethane solvate (<jats:bold>2<\/jats:bold>) of the same molecule [Ackermann<jats:italic>et al.<\/jats:italic>(2015).<jats:italic>Chem. Commun.<\/jats:italic><jats:bold>51<\/jats:bold>, 5257\u20135260] crystallized in the tetragonal space group<jats:italic>P<\/jats:italic>4<jats:sub>2<\/jats:sub>\/<jats:italic>n<\/jats:italic>, with considerable disorder in the molecule. In (<jats:bold>1<\/jats:bold>), the terpyridine (terpy) group assumes an all-<jats:italic>trans<\/jats:italic>conformation typical for terpyridines. It is essentially planar with the two outer pyridine rings (<jats:italic>B<\/jats:italic>and<jats:italic>C<\/jats:italic>) inclined to the central pyridine ring (<jats:italic>A<\/jats:italic>) by 8.70\u2005(15) and 14.55\u2005(14)\u00b0, respectively. The planes of the aromatic spacer (<jats:italic>D<\/jats:italic>,<jats:italic>E<\/jats:italic>and<jats:italic>F<\/jats:italic>) are nearly coplanar with dihedral angles<jats:italic>D<\/jats:italic>\/<jats:italic>E<\/jats:italic>,<jats:italic>D<\/jats:italic>\/<jats:italic>F<\/jats:italic>and<jats:italic>E<\/jats:italic>\/<jats:italic>F<\/jats:italic>being 3.42\u2005(15), 5.80\u2005(15) and 4.00\u2005(16)\u00b0, respectively. It is twisted with respect to the terpy group with, for example, dihedral angle<jats:italic>A<\/jats:italic>\/<jats:italic>D<\/jats:italic>being 24.48\u2005(14)\u00b0. The mean plane of the<jats:italic>N<\/jats:italic>-oxylpyrroline is almost normal to the biphenyl ring<jats:italic>F<\/jats:italic>, making a dihedral angle of 86.57\u2005(16)\u00b0, and it is inclined to pyridine ring<jats:italic>A<\/jats:italic>by 72.61\u2005(15)\u00b0. The intramolecular separation between the O atom of the nitroxyl group and the N atom of the central pyridine ring of the terpyridine group is 25.044\u2005(3)\u2005\u00c5. In the crystal, molecules are linked by pairs of C\u2014H...O hydrogen bonds, forming inversion dimers. The dimers stack along the<jats:italic>c<\/jats:italic>axis forming columns. Within and between the columns, the spaces are occupied by benzene molecules. The shortest oxygen\u2013oxygen separation between nitroxyl groups is 4.004\u2005(4)\u2005\u00c5. The details of the title compound are compared with those of the dichloromethane solvate (<jats:bold>2<\/jats:bold>) and with the structure of a related molecule, 4\u2032-{4-[(2,2,5,5-tetramethyl-<jats:italic>N<\/jats:italic>-oxyl-3-pyrrolin-3-yl)ethynyl]phenyl}-2,2\u2032:6\u2032,2\u2032\u2032-terpyridine (<jats:bold>3<\/jats:bold>), which has an ethynylphenyl spacer [Meyer<jats:italic>et al.<\/jats:italic>(2015).<jats:italic>Acta Cryst.<\/jats:italic>E<jats:bold>71<\/jats:bold>, 870\u2013874].<\/jats:p>","DOI":"10.1107\/s2056989015017697","type":"journal-article","created":{"date-parts":[[2015,9,25]],"date-time":"2015-09-25T11:11:54Z","timestamp":1443179514000},"page":"1245-1249","update-policy":"https:\/\/doi.org\/10.1107\/cm_01","source":"Crossref","is-referenced-by-count":5,"title":["Crystal structure of 4\u2032-{[4-(2,2\u2032:6\u2032,2\u2032\u2032-terpyridyl-4\u2032-yl)phenyl]ethynyl}biphenyl-4-yl (2,2,5,5-tetramethyl-1-oxyl-3-pyrrolin-3-yl)formate benzene 2.5-solvate"],"prefix":"10.1107","volume":"71","author":[{"given":"Andreas","family":"Meyer","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gregor","family":"Schnakenburg","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Olav","family":"Schiemann","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"329","published-online":{"date-parts":[[2015,9,26]]},"reference":[{"key":"su5206_bb1","doi-asserted-by":"crossref","first-page":"5257","DOI":"10.1039\/C4CC08656B","volume":"51","author":"Ackermann","year":"2015","journal-title":"Chem. 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