trans-Ethylenedi-p-phenylene diacetate
نویسندگان
چکیده
منابع مشابه
trans-Ethylenedi-p-phenylene diacetate
The centrosymmetric title compound, C(18)H(26)O(4), was prepared in high yield from 4-acetoxy-styrene via Ru-catalysed homo-olefin metathesis. Exclusive formation of the E-configurated isomer was observed. In the crystal, a strong C-H⋯π inter-molecular inter-action links the mol-ecules together.
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The title compound, C(12)H(14)O(6), was prepared by the Williamson reaction of 1,4-dihydroxy-benzene and methyl chloro-acetate with phase-transfer catalysis. The compound lies on an inversion center. The structure is stabilized by weak C-H⋯π inter-actions.
متن کاملDiethyl N,N′-(p-phenylene)dioxamate
In the crystal structure, the mol-ecule of the title compound, C(14)H(16)N(2)O(6), is located on an inversion centre. The amide -NHCO- plane makes a dihedral angle of 34.08 (9)° with the benzene ring. The mol-ecules are connected via inter-molecular O-H⋯N hydrogen bonds into a two-dimensional network parallel to the bc plane. An intramolecular N-H⋯O hydrogen bond is also observed.
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We report on time resolved photoluminescence (PLRT) measurements in poly(p-phenylene vinylene) (PPV) films irradiated by laser in the presence of air. We observe a PL intensity enhancement and a biexponential decay dynamics of PL signal for all irradiated films. These results can be understood in terms of a chain shortening process due to carbonyl incorporation and formation of an energy profil...
متن کاملExcitation Transfer in Poly-(p -phenylene Vinylene)
Electroluminescent conjugated polymers such as poly-(p-phenylene vinylene) (PPV) are at the brink of being extensively used commercially as light emitting devices. A continuous flow of both theoretical and experimental studies elucidate many still unresolved issues of polymer photophysics. Among the processes under debate are the different energy transfer pathways. This work studies one such pa...
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ژورنال
عنوان ژورنال: Acta Crystallographica Section E Structure Reports Online
سال: 2009
ISSN: 1600-5368
DOI: 10.1107/s1600536809032620