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2001“…The two aromatic rings are twisted about the central carbamate group with a C—C—N—C torsion angle of 139.6 (2)° and a C—C—O—C torsion angle of 95.9 (2)°. The molecules are linked into one-dimensional chains by N—H⋯O hydrogen bonds along the b axis. …”
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2002“…In the crystal structure, intramolecular C—H⋯O and C—H⋯Se interactions and intermolecular C—H⋯O, C—H⋯Cl and C—H⋯N interactions are observed.…”
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2003por Ng, Seik Weng“…The crystal structure of the title compound, [Sn(C(6)H(5))(3)Cl(H(2)O)]·C(12)H(8)N(2), which was refined in the triclinic space group P [Image: see text] [Fu, Gao, Ma & Zhang (2005 ▶). …”
Publicado 2008
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2004por Tafeenko, Viktor A., Aslanov, Leonid A., Khasanov, Mahmud I., Mochalov, Sergei S.“…The molecules are linked into chains by —O— H⋯O=C— hydrogen bonds and these chains are linked into rods by means of N—H⋯O hydrogen bonds. …”
Publicado 2008
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2005“…In the crystal structure, intermolecular C—H⋯O, C—H⋯N and O—H⋯O hydrogen bonds link the molecules, generating R (4) (4)(22) and R (4) (4)(24) ring motifs to form a three-dimensional network. …”
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2006“…The ester substituent adopts a trans staggered conformation, with a C—C—O—C torsion angle of 178.4 (1)°. The molecules pack in distinct layers, facilitated by C—H⋯π and weak π–π ring interactions. …”
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2007por Cheng, Xiang-Wei“…Both methoxy groups are almost coplanar with the attached benzene ring [C—C—O—C = 6.5 (2) and −13.5 (3)°]. An intramolecular C—H⋯O hydrogen bond is observed in the molecular structure. …”
Publicado 2008
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2008“…In the crystal structure, weak intramolecular C—H⋯O interactions and intermolecular C—H⋯O, C—H⋯N and C—H⋯π interactions are observed.…”
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2009“…The ketone double-bond displays an s–cis conformation with an O=C—C=C torsion angle of 7.9 (3) and an intramolecular C—H⋯O hydrogen bond. …”
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2010“…In the crystal structure of the title compound, C(14)H(11)NO(3), isolated from the reaction of 2-bromo-1-phenylethanone and pyridine-4-carboxylic acid using triethylamine as a base to deprotonate the organic acid, the molecular packing is stabilized by C—H⋯π interactions involving the phenyl and pyridine rings. The C—C—O—C torsion angle for the linkage between the two carbonyl groups is −80.8 (2)°, and the planes of the phenyl and pyridyl rings form a dihedral angle of 65.8 (1)°.…”
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2011“…The title compound [systematic name: fluoren-9-yl N-(1-carboxy-3-methylbutyl)carbamate], C(21)H(23)NO(4), exhibits torsion angles that vary from the typical values found in other Fmoc-protected amino acids, viz. the orientations of the fluorene and carboxyl groups [C—O—C—C = 93.8 (2) and N—C—C=O = −23.6 (2)°]. The crystal structure exhibits two intermolecular hydrogen bonds (O—H⋯O and N—H⋯O) that link the molecules into two-dimensional sheets parallel to the ab plane.…”
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2012por Gowda, B. Thimme, Tokarčík, Miroslav, Kožíšek, Jozef, Babitha, K. S., Fuess, Hartmut“…The crystal structure of the title compound (24DMPBA), C(15)H(14)O(2), resembles those of 4-methylphenyl benzoate, 2,3-dimethylphenyl benzoate and other aryl benzoates, with similar bond parameters. The central –O—C—O– group in 24DMPBA makes dihedral angles of 85.81 (5) and 5.71 (13)°, respectively, with the benzoyl and phenyl rings, while the two aromatic rings form a dihedral angle of 80.25 (5)°. …”
Publicado 2008
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2013“…Supramolecular aggregation is effected by C—H⋯O, C—H⋯π and π–π [centroid–centroid distance of 3.755 Å, interplanar distance of 3.633 Å and dihedral angle of 14.6°] interactions.…”
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2014“…In the crystal structure, a network of N—H⋯O, C—H⋯O and C—H⋯F hydrogen bonds links the constituent ions. …”
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2015“…All three methoxy groups are twisted with respect to the attached aromatic ring [C—C—O—C torsion angles = 10.43 (18), 97.38 (14), −19.34 (17)°] and the phenyl ring makes a dihedral angle of 40.6 (2)° with the plane through the remaining atoms in the molecule. …”
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2016“…The crystal packing involves C—H⋯O=C intermolecular interactions where carbonyl O atoms act as double acceptors to two symmetrically related H atoms.…”
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2017“…In the crystal structure, there are no classical hydrogen bonds and interactions comprise C—H⋯O in the form 2(C—H)⋯O=C [with motif R (2) (1)(5)]; C—H⋯π(arene) interactions are also present.…”
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2018“…An intramolecular N—H⋯O=C bridge, as well as weak C—H⋯O hydrogen bonds, are also present in the structure.…”
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2019“…The V(V) atom in the title compound, [VO(C(7)H(7)N(2)O)(C(10)H(8)N(2)O(3))], is N,O-chelated by the benzohydrazidate anion and O,N,O′-chelated by the 2-(benzoylhydrazono)propionate dianion. …”
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2020“…In the crystal structure of the title compound, C(23)H(20)NO(4) (+)·CF(3)SO(3) (−), the cations are linked through C—H⋯O, C—H⋯π and π–π interactions [centroid-centroid distances = 3.641 (2) and 3.885 (2) Å]. …”
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