Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Stella H. Maganhi"'
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 71, Iss 3, Pp o154-o155 (2015)
In the title compound, C15H8O2S, the coumarin moiety is approximately planar (r.m.s. deviation of the 11 non-H atoms = 0.025 Å) and is slightly inclined with respect to the plane of the thiophen-3-yl ring, forming a dihedral angle of 11.75 (8)°. In
Externí odkaz:
https://doaj.org/article/31ff8f2f1aa4482fa86de9107396f8a2
Publikováno v:
Acta Crystallographica Section E: Crystallographic Communications, Vol 71, Iss 2, Pp o90-o91 (2015)
The coumarin ring system in the title asymmetric alkyne, C18H12O2, is approximately planar (r.m.s. deviation of the 11 non-H atoms = 0.048 Å), and is inclined with respect to the methylbenzene ring, forming a dihedral angle of 33.68 (4)°. In the cr
Externí odkaz:
https://doaj.org/article/203353abf094425996fcaa6fb1185fe0
Autor:
Julio Zukerman-Schpector, Stella H. Maganhi, Paulo J. S. Moran, Bruno R. S. de Paula, Paulo R. Nucci Jr, Edward R. T. Tiekink
Publikováno v:
Acta Crystallographica Section E, Vol 70, Iss 9, Pp o1020-o1021 (2014)
In the title compound, C17H15NO4, the conformation about the C=C double bond [1.348 (2) Å] is E with the ketone group almost co-planar [C—C—C—C torsion angle = 7.2 (2)°] but the phenyl group twisted away [C—C—C—C = 160.93 (17)°]. The t
Externí odkaz:
https://doaj.org/article/9202565c5e14415c8b2c63f53d9d2eb6
Autor:
Ignez Caracelli, Stella H. Maganhi, Paulo J. S. Moran, Bruno R. S. de Paula, Felix N. Delling, Edward R. T. Tiekink
Publikováno v:
Acta Crystallographica Section E, Vol 70, Iss 9, Pp o1051-o1052 (2014)
In the title compound, C17H14N2O6, the conformation about the C=C double bond [1.345 (2) Å] is E, with the ketone moiety almost coplanar [C—C—C—C torsion angle = 9.5 (2)°] along with the phenyl ring [C—C—C—C = 5.9 (2)°]. The aromatic r
Externí odkaz:
https://doaj.org/article/99157e19d82748709cd2420e8e2c9b91
Publikováno v:
Acta Crystallographica Section E, Vol 69, Iss 11, Pp o1700-o1700 (2013)
The title compound, C14H13NO4S, an analogue of capsaicin, differs from the latter by having a 1,3-benzodioxole ring rather than a 2-methoxyphenol moiety, and having a benzenesulfonamide group instead of an aliphatic amide chain. The five-membered rin
Externí odkaz:
https://doaj.org/article/05169db58e864d08b78b37370db7fc88
Publikováno v:
Acta Crystallographica Section E, Vol 69, Iss 3, Pp o332-o332 (2013)
In the title compound, C16H15NO3, the five-membered 1,3-dioxole ring is in an envelope conformation with the methylene C atom as the flap atom [lying 0.202 (3) Å out of the plane formed by the other four atoms]. The benzene ring makes a dihedral ang
Externí odkaz:
https://doaj.org/article/aab31c49e2854e3ea114b0f34d96846f
Autor:
Julio Zukerman-Schpector, Ignez Caracelli, Edson Rodrigues-Fo, Taicia Pacheco Fill, Stella H. Maganhi
Publikováno v:
Acta Crystallographica Section E, Vol 65, Iss 2, Pp o221-o221 (2009)
The title meroterpene preaustinoid A (systematic name: methyl 15-hydroxy-2,6,6,10,13,15-hexamethyl-17-methylene-7,14,16-trioxotetracyclo[11.3.1.02,11.05,10]heptadecane-1-carboxylate), C26H36O6, features a fused four-ring arrangement. Three rings are
Externí odkaz:
https://doaj.org/article/9bdf27e19fc14eac884ad2750d358b2b
Autor:
Julio Zukerman-Schpector, Rodrigo L. O. R. Cunha, Ignez Caracelli, Stella H. Maganhi, Edward R. T. Tiekink, Mauricio Angel Veja-Teijido
Publikováno v:
Journal of Molecular Structure. 1244:130935
The molecular structures of three 1,3‐diphenyl‐4‐(trichloro‐λ4‐tellanyl)but‐2‐en‐1‐one derivatives (1–3), show similar coordination geometries defined by methylene-C, three chloride and carbonyl-O atoms. In each case, the resulti
Autor:
Mauricio Vega-Teijido, Ignez Caracelli, Stella H. Maganhi, Josiane de Oliveira Cardoso, Rodrigo L. O. R. Cunha, Julio Zukerman-Schpector, Edward R. T. Tiekink
Publikováno v:
Zeitschrift für Kristallographie - Crystalline Materials. 233:113-124
The molecular structures of the halotelluroxetanes p-MeOC6H4Te(X)[C(=C(H)X′)C(CH2)nO], X=X′=Cl and n=6 (1) and X=Cl, X′=Br and n=5 (4), show similar binuclear aggregates sustained by {· · ·Te–O}2 cores comprising covalent Te–O and second
Autor:
Julio Zukerman-Schpector, Stella H. Maganhi, Adriana Karla Cardoso Amorim Reis, Paulo R. Olivato, Edward R. T. Tiekink, Alessandro Rodrigues
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
The X-ray single crystal analysis of isomeric ortho, meta, and para bromo-substituted α-methylsulfonyl-α-diethoxyphosphoryl acetophenones showed that this class of compound adopts synclinal (gauche) conformations for both [-P(O)(OEt)2] and [-S(O)2M