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Mostrando 301 - 320 Resultados de 861 Para Buscar '"Butanés"', tiempo de consulta: 0.16s Limitar resultados
  1. 301
    “…The iridium–butane-1,4-diyl ring has an envelope conformation. …”
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    (Butane-1,4-di­yl)(trimethyl­phosphane-κP)[tris­(3,5-dimethyl­pyrazol-1-yl-κN (2))hydro­borato]iridium(III)
  2. 302
    “…The Ni(II) atom is four-coordinated by the two Br atoms and two N atoms from an N,N′-bis(2,6-diethyl-4-phenyl­phen­yl)butane-2,3-di­imine ligand in a distorted tetra­hedral geometry. …”
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    [N,N′-Bis(2,6-diethyl-4-phenyl­phen­yl)butane-2,3-di­imine-κ(2) N,N′]di­bromido­nickel(II)
  3. 303
    por Sarker, Altaf H., Hang, Bo
    Publicado 2022
    “…Thirdhand smoke (THS) is a newly described health hazard composed of toxicants, mutagens and carcinogens, including nicotine-derived tobacco specific nitrosamines (TSNAs), one of which is 1-(N-methyl-N-nitrosamino)-1-(3-pyridinyl)-4-butanal (NNA). Although TSNAs are generally potent carcinogens, the risk of NNA, which is specific to THS, is poorly understood. …”
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    Tobacco-specific nitrosamine 1-(N-methyl-N-nitrosamino)-1-(3-pyridinyl)-4-butanal (NNA) causes DNA damage and impaired replication/transcription in human lung cells
  4. 304
    por Chen, Zhi-Qiang, Zhang, Wen-Zhi, Xu, Qun
    Publicado 2008
    “…In the title compound, [Mn(2)(C(12)H(6)O(4))(2)(C(10)H(14)N(4))(H(2)O)](n) or [Mn(2)(1,4-ndc)(2)(L)(H(2)O)](n), where 1,4-ndc is naphthalene-1,4-dicarboxyl­ate and L is 1,1′-(butane-1,4-di­yl)diimidazole, the coordination polyhedron around each Mn(II) atom is distorted octa­hedral. …”
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    Poly[μ(2)-aqua-[μ(2)-1,1′-(butane-1,4-di­yl)diimidazole]bis­(μ(4)-naphthalene-1,4-dicarboxyl­ato)dimanganese(II)]
  5. 305
    “…In the structure of the title compound, [Co(C(10)H(5)F(4)O(2))(2)(C(5)H(5)N)(2)], cobalt(II) forms a complex with two 4,4,4-trifluoro-1-(4-fluoro­phen­yl)butane-1,3-dionate anions and two pyridine mol­ecules in an octa­hedral coordination environment, where the two dionate ligands are in equatorial positions and the two pyridine mol­ecules in axial positions. …”
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    Bis(pyridine-κN)bis­[4,4,4-trifluoro-1-(4-fluoro­phen­yl)butane-1,3-dionato-κ(2) O,O′]cobalt(II)
  6. 306
    “…In the title compound, {[Co(C(10)H(14)N(4))(2)(H(2)O)(2)]Cl(2)·4H(2)O}(n), the Co(II) atom and the mid-point of the 1,1′-butane-1,4-diyl­diimidazole ligands lie on inversion centers. …”
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    Poly[[[diaqua­cobalt(II)]-bis­[μ(2)-1,1′-(butane-1,4-di­yl)diimidazole-κ(2) N (3):N (3′)]] dichloride tetra­hydrate]
  7. 307
    por Zhu, Bao-Yong
    Publicado 2010
    “…As the methyl­ene groups can bend freely relative to each other due to the C atoms connected via single bonds, the 1,1′-(butane-1,4-di­yl)diimidazole ligand forms an S-shaped conformation, which makes the void in the three-dimensional network distorted.…”
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    Poly[(μ(4)-biphenyl-3,3′-dicarboxyl­ato)bis[μ(2)-1,1′-(butane-1,4-di­yl)diimidazole](μ(2)-oxalato)dimanganese(II)]
  8. 308
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    (1R*,2R*)-1-(7-Bromo-3-methoxy­naphthalen-2-yl)-4-(dimethyl­amino)-2-(naphthalen-1-yl)-1-phenyl­butan-2-ol
  9. 309
    “…Two Co(II) ions and two 2-({2-[(1,2-dicarboxyl­atoeth­yl)amino]­eth­yl}amino)­butane­dio­ate (EDDS) ligands form a dimeric complex dianion [Co(2)(EDDS)(2)]. …”
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    Poly[[diaqua[μ(5)-(R,S)-2-({2-[(1,2-di­carboxyl­atoeth­yl)amino]­eth­yl}amino)­butane­dioato]cobaltate(III)sodium] di­hydrate]
  10. 310
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    Crystal structure of bis­{μ-4-methyl-N′-[3-(oxido­imino)­butan-2-yl­idene]benzene­sulfono­hydrazidato}bis­[(dimethyl sulfoxide-κO)copper(II)]
  11. 311
    “…In the title compound, C(32)H(32)N(2), synthesized by the con­densation reaction of 2-ethyl-4-phenyl­aniline and 2,3-butane­dione, the conformation about the C=N bonds is E and the substituted biphenyl units are trans to one another. …”
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    Crystal structure of (2E,3E)-N (2),N (3)-bis­(3-ethyl-[1,1′-biphen­yl]-4-yl)butane-2,3-di­imine
  12. 312
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    3-{(E)-[4-(4-Hy­droxy-3-meth­oxy­phen­yl)butan-2-yl­idene]amino}-1-phenyl­urea: crystal structure and Hirshfeld surface analysis
  13. 313
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    1-{(E)-[4-(4-Hy­droxy­phen­yl)butan-2-yl­idene]amino}-3-phenyl­thio­urea: crystal structure, Hirshfeld surface analysis and computational study
  14. 314
    “…In particular, the halogen-bond donor is 1,3-di­iodo­perchloro­benzene (C(6)I(2)Cl(4) ) while the acceptor is the photoproduct rtct-tetra­kis­(pyridin-4-yl)cyclo­butane (TPCB). Curiously, within the resulting co-crystal (C(6)I(2)Cl(4) )·(TPCB), the photoproduct accepts only two halogen bonds between neighbouring 4-pyridyl rings and as a result behaves as a bent two-connected node rather than the expected four-connected centre. …”
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    Halogen-bonded co-crystal containing 1,3-di­iodo­perchloro­benzene and the photoproduct rtct-tetra­kis­(pyridin-4-yl)cyclo­butane resulting in a zigzag topology
  15. 315
    “…The 1,4-bis­(1,2,4-triazol-yl)butane ligand is centrosymmetric, the mid-point of the central C—C bond being located on an inversion center. …”
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    catena-Poly[[tetra­aqua­[μ(2)-1,4-bis­(1,2,4-triazol-1-yl)butane-κ(2) N (4):N (4′)]cadmium(II)] sulfate]
  16. 316
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    Poly[[(4,4′-bipyridine-κN)[μ(3)-(S)-2-hy­droxy­butane­dioato-κ(4) O (1),O (2):O (4):O (4′)]zinc] dihydrate]
  17. 317
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    (Butane-1,2,3,4-tetraol-κ(3) O (1),O (2),O (3))(ethanol-κO)tris­(nitrato-κ(2) O,O′)holmium(III)
  18. 318
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    (Butane-1,2,3,4-tetraol-κ(3) O (1),O (2),O (3))(ethanol-κO)tris­(nitrato-κ(2) O,O′)erbium(III)
  19. 319
    “…The title compound, C(20)H(20)Br(4)N(2), is a product of the condensation reaction of 4,6-di­bromo-2,3-di­methyl­aniline and butane-2,3-dione. The mol­ecule has a center of symmetry at the mid-point of the central C—C bond. …”
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    4,6-Di­bromo-N-{3-[(4,6-di­bromo-2,3-di­methyl­phenyl)imino]butan-2-yl­idene}-2,3-di­methyl­aniline
  20. 320
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    1-{3-(4-Chloro­phen­yl)-5-[4-(propan-2-yl)phen­yl]-4,5-di­hydro-1H-pyrazol-1-yl}butan-1-one
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