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  1. 1901
    “…The crystal packing is influenced by O—H⋯Cl, N—H⋯Cl, N—H⋯O, C—H⋯O and C—H⋯Cl hydrogen bonds, resulting in structure with an open-framework architecture.…”
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    4-(2,3-Dimethyl­phen­yl)piperazin-1-ium chloride monohydrate
  2. 1902
    “…The two meth­oxy groups are coplanar with the attached benzene ring [C—O—C—C torsion angles = −1.1 (5) and 3.2 (4)°].…”
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    2-[(4-Ethyl­phen­yl)imino­meth­yl]-3,5-dimethoxy­phenol
  3. 1903
    “…The crystal structure is characterized by intermolecular N—H⋯O, O—H⋯O, C—H⋯O and C—H⋯π hydrogen bonds.…”
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    N-[(2-Hydr­oxy-5-methoxy­phen­yl)(3-nitro­phen­yl)meth­yl]acetamide
  4. 1904
    “…In the crystal, the molecules interact via C—H⋯O, C—H⋯Cl and C—H⋯π interactions.…”
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    Ethyl 6-(4-chloro­phen­yl)-4-(4-methoxy­phen­yl)-2-oxocyclo­hex-3-ene-1-carboxyl­ate
  5. 1905
    “…In the title compound, C(18)H(29)N(3)O, a polysubstituted guanidine, the torsion angles indicate that the guanidine unit and the carbonyl group are almost perpendicular to one another [O—C—N—C= −7.40 (18), C—N—C—N= −97.21 (15) and 86.41 (13)°]. …”
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    (Z)-2-Phenyl-3-pivaloyl-1,1-dipropyl­guanidine
  6. 1906
    “…The meth­oxy group lies almost in the plane of the benzene ring [C–O–C–C torsion angle = 2.7 (2)°]. In the crystal structure, inter­molecular N—H⋯O hydrogen bonds link the mol­ecules into chains along [010].…”
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    N-(4-Methoxy­phen­yl)pivalamide
  7. 1907
    “…In the crystal structure of the title compound, C(13)H(11)NO(3)S, the conformation of the N—H bond in the C—SO(2)—NH—C(O)—C segment is anti to the C=O bond. The molecule is twisted at theN atom with a dihedral angle of 86.5(1)° between the sulfonyl benzene ring and the —SO(2)—NH—C=O segment. …”
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    N-Benzo­ylbenzene­sulfonamide
  8. 1908
    “…The components of the adduct are linked by inter­molecular O—H⋯N hydrogen bonds and further connected by a combination of C—H⋯O, C—H⋯F and F⋯F [2.859 (2) Å] inter­actions.…”
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    4,4′-Bipyridine–2,3,4,5,6-penta­fluoro­benzoic acid (1/2)
  9. 1909
    “…The crystal structure exhibits weak inter­molecular C—H⋯O, C—H⋯π and π–π [centroid–centroid distances = 3.620 (1)–3.794 (1) Å] inter­actions.…”
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    2-Chloro­methyl-3-methyl-1-phenyl­sulfonyl-1H-indole
  10. 1910
    por Hu, Xilan, Xu, Xingyou, Wang, Daqi, Zhang, Yu
    Publicado 2009
    “…In the title compound, [Zn(C(15)H(11)N(2)O(2))(2)(C(2)H(8)N(2))], the Zn(II) atom is coordinated in a distorted tetra­hedral geometry. Intra­molecular N—H⋯O, C—H⋯O and C—H⋯N hydrogen bonds occur. In the crystal, mol­ecules are linked by inter­molecular N—H⋯O hydrogen bonds, forming a three-dimensional network.…”
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    Bis(5,5-diphenyl­hydantoinato-κN (3))(ethyl­enediamine)zinc(II)
  11. 1911
    “…The 1,3-dioxin-4-one ring in the title compound, C(16)H(16)O(3), is in a half-boat conformation with the quaternary O—C(CH(3))(2)—O atom lying 0.546 (1) Å out of the plane defined by the remaining five atoms. …”
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    2,2,6-Trimethyl-5-[2-(4-methyl­phen­yl)ethyn­yl]-4H-1,3-dioxin-4-one
  12. 1912
    “…The cyclo­hexyl ring adopts a chair conformation with the ketonic group occupying an equatorial position; the four-atom –C(O)–C ketonic unit is twisted out of the plane of the phenyl­ene ring by 34.9 (1)°.…”
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    2-[2-(Cyclo­hexyl­carbon­yl)phen­yl]-1-phenyl­ethanone
  13. 1913
    por Zhu, Zhi-Biao, Gao, Shan, Ng, Seik Weng
    Publicado 2009
    “…2-Hydroxy­pyridine when treated with concentrated sulfuric acid is sulfonated at the 3-position to yield the title hydrated salt, H(3)O(+)·C(5)H(4)NO(3)S(−)·2H(2)O. In the crystal structure, the cations, anions and uncoordinated water mol­ecules are linked by extensive O—H⋯O and N—H⋯O hydrogen bonds into a three-dimensional network. …”
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    Hydro­nium 4-oxo-1,4-dihydro­pyridine-3-sulfonate dihydrate
  14. 1914
    “…The 3,5-meth­oxy groups in the title compound, C(16)H(23)NO(4), are almost coplanar with the aromatic ring, whereas the 4-meth­oxy group is bent out of this plane. The three CH(3)—O—C—C torsion angles are −1.51 (18), 0.73 (19) and 75.33 (15)°. …”
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    N-Cyclo­hexyl-3,4,5-trimethoxy­benzamide
  15. 1915
    “…The title organic salt, C(4)H(6)N(3)O(+)·C(4)H(3)O(4) (−)·C(4)H(5)N(3)O, was synthesized from cytosine base and maleic acid. …”
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    Cytosinium–hydrogen maleate–cytosine (1/1/1)
  16. 1916
    “…The central –CH=N—N=CH– fragment is planar, but as a whole the mol­ecule is not: the benz­yloxy group is rotated about the O—C bond by 69.3 (2)° with respect to the plane of the benzyl­idene hydrazine unit.…”
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    2-Benzyl­oxybenzaldehyde azine
  17. 1917
    “…In the crystal structure, an O⋯C short contact of 2.917 (3) Å is observed.…”
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    2-[2-Benzoyl-3,3-bis­(methyl­sulfan­yl)prop-2-enyl­idene]malononitrile
  18. 1918
    “…In the title compound, C(10)H(9)N(3)O, the organic rings linked to the ether O atom make a dihedral angle of 76.8 (1)° and the C—O—C angle is widened to 119.07 (15)°. In the crystal, adjacent mol­ecules are connected by an N—H⋯N hydrogen bond, generating a chain running parallel to the b axis. …”
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    4-Amino-2-phenoxy­pyrimidine
  19. 1919
    “…The crystal structure is stabilized by inter­molecular N—H⋯O, C—H⋯O and C—H⋯N hydrogen bonding, and C—H⋯π inter­actions.…”
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    N-(2-Chloro­phen­yl)-2-(4,6-dimethyl­pyrimidin-2-ylsulfan­yl)acetamide
  20. 1920
    “…These chains are connected by hydro­phobic inter­actions, forming infinite layers and N—H⋯O=C contacts between mol­ecules of adjacent layers give rise to a three-dimensional structure.…”
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    Dimethyl cis-4-hydroxy­methyl­piperidine-2,6-dicarboxyl­ate
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