Zobrazeno 1 - 10
of 56
pro vyhledávání: '"Heng-Qiang Zhang"'
Publikováno v:
IUCrData, Vol 1, Iss 2, p x160180 (2016)
In the cation of the title compound, C11H10N3+·Br−·H2O, the central 1,3,5-triazinium ring has a flattened boat conformation and the outer heterocyclic rings are nearly planar [maximum deviations = 0.010 (4) and 0.009 (4) Å] and twisted with resp
Externí odkaz:
https://doaj.org/article/55353fa0c16d48389e115063d604ec92
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 71, Iss 3, Pp o177-o178 (2015)
In the title compound, C21H16ClN3O2, the pyrazolone ring and the O=C—C=C—N mean plane [maximum deviation = 0.022 (2) Å] are nearly coplanar, making a dihedral angle 4.56 (8)°, while the phenyl and pyrazole rings subtend a dihedral angle of 19.7
Externí odkaz:
https://doaj.org/article/32bf0544838d427eb597d4c27276a2bd
Publikováno v:
Acta Crystallographica Section E, Vol 68, Iss 6, Pp o1843-o1843 (2012)
The title compound, C23H18ClN3O, exists in an enamine–keto form with the amino group involved in an intramolecular N—H...O hydrogen bond. The five-membered ring is nearly planar, the largest deviation being 0.0004 (7) Å, and makes dihedral angle
Externí odkaz:
https://doaj.org/article/778be90846bc496c9e96fa0ef5fe09af
Publikováno v:
Acta Crystallographica Section E, Vol 67, Iss 7, Pp m860-m861 (2011)
In comparison with the previous determination [Saussine, Mimoun, Mitschler & Fisher (1980). Nouv. J. Chim. 4, 235–237] of the title compound, [V2(C4H10NO)4O3], the current study reports an improved precision of the derived geometric parameters, alo
Externí odkaz:
https://doaj.org/article/7f717838ea60430394fed1ebd0adb450
Publikováno v:
Acta Crystallographica Section E, Vol 67, Iss 6, Pp m671-m672 (2011)
The polymeric title compound, {[Ba2(C9H4N2O4)2(H2O)]·4.5H2O}n, adopts a layer structure parallel to (001) in which adjacent BaII atoms are connected by two benzimidazole-5,6-dicarboxylate dianions, one functioning in a μ4-bridging mode and the othe
Externí odkaz:
https://doaj.org/article/decea5b678ff4c2fb552c0b301c32d6f
Publikováno v:
Acta Crystallographica Section E, Vol 66, Iss 2, Pp e19-e19 (2010)
The title of the paper by Li, Li, Li, Zhang & Li [Acta Cryst. (2009), E65, o1824] is corrected.
Externí odkaz:
https://doaj.org/article/78353426471f4eca81c5a5686341b6cb
Publikováno v:
Acta Crystallographica Section E, Vol 65, Iss 8, Pp o1824-o1824 (2009)
The title compound, C25H19N3O2, crystallizes as discrete molecules which are well ordered through one intramolecular N—H...O hydrogen bond. Structural analysis indicates that the molecules exist as the amine–one form.
Externí odkaz:
https://doaj.org/article/c817ff24e602439cb9ba10076bf52c49
Publikováno v:
Zeitschrift für Kristallographie - New Crystal Structures. 237:651-653
C18H16Cl4N2O3V, orthorhombic, Pbca (no. 61), a = 7.8555(3) Å, b = 21.6645(7) Å, c = 23.7584(8) Å, V = 4043.3(2) Å3, Z = 8, R gt (F) = 0.0296, wR ref (F 2) = 0.0799, T = 296(2) K.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::72f72fee119509d2d096cc1455bc1867
https://doi.org/10.1515/ncrs-2022-0179
https://doi.org/10.1515/ncrs-2022-0179
Publikováno v:
Zeitschrift für Kristallographie - New Crystal Structures. 237:647-649
C22H16FN3O2, triclinic, P 1 ‾ $\overline{1}$ (no. 2), a = 8.7335(18) Å, b = 9.967(2) Å, c = 11.968(3) Å, α = 70.677(4)°, β = 86.259(4)°, γ = 65.759(4) Å, V = 893.4(3) Å3, Z = 2, R gt (F) = 0.0543, wR ref (F 2) = 0.1677, T = 296(2) K.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d501bdcc605aa4b7492cb28f3ddb62d
https://doi.org/10.1515/ncrs-2022-0173
https://doi.org/10.1515/ncrs-2022-0173
Publikováno v:
Zeitschrift für Kristallographie - New Crystal Structures. 237:559-561
C26H18BrN3O2, monoclinic, P21/n (no. 14), a = 9.5191(14) Å, b = 23.056(3) Å, c = 10.0556(15) Å, β = 95.470(3)°, V = 2196.9(6) Å3, Z = 4, R gt (F) = 0.0640, wR ref (F 2) = 0.1645, T = 296(2) K.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::753d5cc2b903c80dafd87538a0a7b92a
https://doi.org/10.1515/ncrs-2022-0141
https://doi.org/10.1515/ncrs-2022-0141