Zobrazeno 1 - 10
of 98
pro vyhledávání: '"Wu-lan Zeng"'
Autor:
Wu-Lan Zeng, Wan Xin
Publikováno v:
Zeitschrift für Kristallographie - New Crystal Structures, Vol 234, Iss 4, Pp 619-620 (2019)
C15H22O4, monoclinic, P21/c (no. 14), a = 12.7370(5) Å, b = 11.4565(7) Å, c = 10.0430(6) Å, β = 103.340(1)°, V = 1425.95(13) Å3, Z = 4, Rgt(F) = 0.0508, wRref(F2) = 0.1406, T = 296(2) K.
Externí odkaz:
https://doaj.org/article/158ee28e869d442baaf73129906aac64
Publikováno v:
Zeitschrift für Kristallographie - New Crystal Structures, Vol 233, Iss 4, Pp 677-678 (2018)
C16H17N1O4, triclinic, P1̅ (no. 2), a = 7.0971(3) Å, b = 7.6638(4) Å, c = 13.2375(6) Å, α = 92.116(10)°, β = 99.690(10)°, γ = 95.196(10)° V = 705.81(6) Å3, Z = 2, Rgt(F) = 0.0529, wRref(F2) = 0.1489, T = 296(2) K.
Externí odkaz:
https://doaj.org/article/c0764ca07386467789c04f2536bdbbd2
Autor:
Wu-Lan Zeng
Publikováno v:
Acta Crystallographica Section E, Vol 67, Iss 8, Pp o1937-o1937 (2011)
The title compound, C16H18O7, was prepared by the reaction of 2,2-dimethyl-1,3-dioxane-4,6-dione and 2,3,4-trimethoxybenzaldehyde. The 1,3-dioxane ring is in a slightly distorted boat conformation. The crystal structure is stabilized by weak intermol
Externí odkaz:
https://doaj.org/article/30d00e03114349d6b9ef306f9b53dec3
Autor:
Wu-Lan Zeng
Publikováno v:
Acta Crystallographica Section E, Vol 67, Iss 8, Pp o1894-o1894 (2011)
The title compound, C19H18Cl2O8, was prepared by the reaction of 2,2-dimethyl-1,3-dioxane-4,6-dione and 2,4-dichlorobenzaldehyde in ethanol. The two 1,3-dioxane rings exhibit boat conformations. In the crystal, molecules are linked by weak intermolec
Externí odkaz:
https://doaj.org/article/2c631281f80c435abd838d05dfd8eaf7
Autor:
Wu-Lan Zeng
Publikováno v:
Acta Crystallographica Section E, Vol 67, Iss 6, Pp o1362-o1362 (2011)
In the title molecule, C16H14Cl2O4, the 1,3-dioxane and cyclohexane rings exhibit distorted boat and chair conformations, respectively. In the crystal, a pair of weak intermolecular C—H...O hydrogen bonds link the molecules into an inversion dimer.
Externí odkaz:
https://doaj.org/article/9beb65eaccfb4456973c14085a7ac6a7
Autor:
Wu-Lan Zeng
Publikováno v:
Acta Crystallographica Section E, Vol 67, Iss 6, Pp o1351-o1351 (2011)
The title compound, C15H16O4, was prepared by the reaction of 2,2-dimethyl-1,3-dioxane-4,6-dione and 3,4-dimethylbenzaldehyde in ethanol. The 1,3-dioxane ring exhibits an envelope conformation. In the crystal, molecules are linked by weak intermolecu
Externí odkaz:
https://doaj.org/article/3642f5fa93c7496296df9eca8cb8f644
Autor:
Wu-Lan Zeng
Publikováno v:
Acta Crystallographica Section E, Vol 67, Iss 2, Pp o478-o478 (2011)
The asymmetric unit of the title compound, C12H12O5, contains two independent molecules. In each, the 1,3-dioxane ring adopts an envelope conformation with the dimethyl-substituted C atom forming the flap. The crystal structure is stabilized by weak
Externí odkaz:
https://doaj.org/article/206f5c6c27f949c0979c769fba8f0fbd
Autor:
Wu-Lan Zeng
Publikováno v:
Acta Crystallographica Section E, Vol 67, Iss 2, Pp o276-o276 (2011)
In the title molecule, C16H15FO4, the fused 1,3-dioxane and cyclohexane rings exhibit a bath and a chair conformation, respectively. In the crystal, weak intermolecular C—H...O hydrogen bonds link the molecules into centrosymmetric dimers.
Externí odkaz:
https://doaj.org/article/01b0da32dd1a442eb2b65008d179dd05
Autor:
Wu-Lan Zeng
Publikováno v:
Acta Crystallographica Section E, Vol 67, Iss 2, Pp o426-o426 (2011)
The title molecule, C16H15BrO4, was prepared by the reaction of (R)-2,4-dioxo-1,5-dioxaspiro[5.5]undecane and 4-bromobenzaldehyde with ethanol. The 1,3-dioxane ring exhibits a distorted boat and the fused cyclohexane ring exhibits a chair conformatio
Externí odkaz:
https://doaj.org/article/564d40c7be1040b9b8ee566d309d2715
Autor:
Wu-Lan Zeng
Publikováno v:
Acta Crystallographica Section E, Vol 66, Iss 11, Pp o2943-o2943 (2010)
The title compound, C15H14O4, was prepared by the reaction of 2,2-dimethyl-1,3-dioxane-4,6-dione and (Z)-3-phenylacrylaldehyde in ethanol. The dioxane ring is in a sofa conformation with the C atom bonded to the two methyl groups forming the flap. Wi
Externí odkaz:
https://doaj.org/article/79176bcc1cec4c7db29392d7b8ac31d0