نتایج جستجو برای: anthracene
تعداد نتایج: 4069 فیلتر نتایج به سال:
In the title compound, C(18)H(12)O(5), the anthracene moiety is almost planar (r.m.s. deviation = 0.0399 Å). In the crystal, mol-ecules are linked to each other by inter-molecular O-H⋯O and weak C-H⋯O hydrogen bonds.
In the title compound, C(20)H(16)N(2)O, an intra-molecular C-H⋯N forms an S(6) ring motif. In the crystal, the mol-ecules are stacked with their anthracene ring planes in sheets along [100].
In the crystal stucture of the of the title compound, C(25)H(27)N, stong π-π inter-actions are found between adjacent anthracene fragments, with a shortest centroid-centroid distance of 3.5750 (9) Å.
In the title compound, C(19)H(18), the anthracene system is almost planar, with a maximum deviation of -0.039 (1) Å. The structure is stabilized by C-H⋯π inter-actions. The pentene moiety is not planar and is twisted away from the attached anthracene system with a maximum torsion angle of 91.2 (1)°.
A beta-cyclodextrin anthracene rotaxane was synthesized and found to be significantly more resistant to fluorescence quenching and photobleaching than the uninsulated anthracene derivative.
The reductions of benzophenone and anthracene with dimeric magnesium(I) complexes lead to thermally stable magnesium ketyl and magnesium anthracene complexes, respectively; both have been structurally characterised.
A new anthracene derivative, 3-hydroxy-1-keto-3-methyl-8-methoxy-1,2,3, 4-tetrahydro-benz[α]anthracene, was isolated from the marine strain Streptomyces sp. W007, and its structure was established by spectroscopic analysis including mass spectra, 1D- and 2D-NMR ((1)H-(1)H COSY, HMBC, HSQC and NOESY) experiments. 3-hydroxy-1-keto-3-methyl-8-methoxy-1,2,3,4-tetrahydro-benz[α]anthracene showed cyt...
Abstract Single‐atom catalysts (SACs) often show exceptionally high performance per metal loading. Besides benefiting from a better atom utilisation, the metal‐support interaction is more pronounced in SACs compared to traditional nanoparticle catalysts. Thus, using photochemical conversions of great advantage where rapid reactions depend on synergistic active site with photoactive support. Her...
K-region epoxides of the carcinogens benz[a] anthracene, dibenz[a,h]anthracene, and 7-methylbenz[a] anthracene are mutagenic in strains of Salmonella typhimurium designed to detect frameshift mutagens. Parent hydrocarbons, K-region diols and phenols and some other epoxides are inactive as mutagens in these tests. Polycyclic hydrocarbon epoxides, and other presumed proximal carcinogens, are disc...
The newly designed and synthesized artificial anthracene derivatives possessing a deoxyamino sugar effectively and randomly cleaved proteins, such as bovine serum albumin (BSA) and hen egg lysozyme (Lyso), during photoirradiation using a long wavelength UV light (365 nm) without any further additives. Furthermore, it was found that the cleaving ability of anthracene could be improved by the att...
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