نتایج جستجو برای: anthracene derivatives
تعداد نتایج: 108664 فیلتر نتایج به سال:
In this work, two series of oxime esters (OXE) based on Pyrene and Anthracene chromophores were synthesized tested as Type ? photoinitiators for the Free Radical Photopolymerization (FRP) under visible irradiation at 405 nm using light-emitting diodes (LED) source. Interestingly, only differ by nature substituents connected to ester functional group. As a result modification, reactivity differe...
Temperature dependences of the free energy (F), entropy (S) and heat capacity (C_v) are calculated (P=0) for organic compounds (solid benzene, naphthalene anthracene) by using quasiharmonic approximation. Contributions to those thermodynamic functions due Raman frequencies lattice modes benzene), librational (naphthalene), phonons vibrons (anthracene) taken into account in our calculations. We ...
A Negishi coupling based synthesis of 1,2,4,5-tetra(9-anthryl)benzene derivatives, possessing X-shaped molecular structures, is described. The results X-ray crystallographic analysis show that two-dimensional highly ordered packing structure the crystalline state unsubstituted derivative a consequence intermolecular π-π and CH-π interactions between anthracene units. Photoirradiation as precipi...
Abstract Graphene functionalized with dianthracene malonate was synthesized and used subsequently for construction of covalently bound graphene-fullerene hybrid nanomaterials. For this purpose, novel approach Diels–Alder reaction C 60 /C 70 fullerene cores anthracene moieties previously introduced onto graphene surface successfully employed. Structure composition obtained its derivatives were c...
Singlet oxygen, as a kind of reactive oxygen species, plays an important role in organic synthesis and biological processes. However, these excited molecules have short life high reactivity; thus it is great challenge to capture singlet oxygen. Here, for the first time two functionalized 3D covalent frameworks (3D COFs) with polycyclic aromatic hydrocarbons, termed JUC-575 JUC-576, reversible r...
K-region epoxides of benz[a] anthracene, dibenz[a,h] anthracene, and 3-methylcholanthrene have been found to be toxic and more active in producing malignant transformation of cells derived from mouse prostate than their respective parent hydrocarbons and K-region dihydrodiols and phenols. The data support the view that metabolism of these polycyclic hydrocarbons is a prerequisite for their biol...
Armillaria sp. F022, a white-rot fungus isolated from decayed wood in tropical rain forest was used to biodegrade anthracene in cultured medium. The percentage of anthracene removal by Armillaria sp. F022 reached 13 % after 7 days and at the end of the experiment, anthracene removal level was at 87 %. The anthracene removal through sorption and transformation was investigated. 69 % of eliminate...
K-region epoxides of benz[a] anthracene, dibenz[a,h] anthracene, and 3-methylcholanthrene have been found to be toxic and more active in producing malignant transformation of cells derived from mouse prostate than their respective parent hydrocarbons and K-region dihydrodiols and phenols. The data support the view that metabolism of these polycyclic hydrocarbons is a prerequisite for their biol...
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