请输入您要查询的英文单词:

 

单词 perylene
释义

perylenen.

Brit. /ˈpɛrᵻliːn/, U.S. /ˈpɛrəˌlin/
Origin: A borrowing from German. Etymon: German Perylen.
Etymology: < German Perylen (R. Scholl et al. 1910, in Berichte der Deutsch. Chem. Ges. 43 2202), shortened < peri-Di-naphthylen < peri- relating to the 1,8-positions on the naphthalene ring system + di- di- comb. form + Naphthylen naphthylene (compare naphthalene n., naphthyl n.): see -ene comb. form.
Chemistry.
A yellow, crystalline hydrocarbon, C20H12, whose molecule consists of five fused aromatic rings, which occurs in coal tar and from which certain organic pigments are derived.
ΘΚΠ
the world > matter > chemistry > organic chemistry > hydrocarbons > [noun] > other hydrocarbons
marsh butterc1450
asphaltene1837
petrolene1837
retinol1837
melene1848
butene1851
peucyl1857
nicotyl1860
bog-butter1863
melissene1867
bitumene1868
tolene1868
valylene1868
thallene1872
melissylene1884
allylene1889
dicyclopentadiene1904
kerogen1906
perylene1910
oestrane1933
dodecahedrane1964
prismane1964
1910 Jrnl. Chem. Soc. 98 i. 616 To establish the constitution as a peri-derivative, 1:8-naphthalenediamine was converted into the azimide, this into 8-iodo-α-naphthylamine, and further into 1:8-di-iodonaphthalene, which last when heated with copper powder yielded..peri~dinaphthalene, which it is proposed to term perylene.
1946 Nature 10 Aug. 209/2 The position and number of fluorescence bands of anthracene, perylene, phenanthrene and naphthacene in benzene are independent of the wave-length of the exciting radiation.
1966 New Scientist 29 Dec. 735/3 An electron donor such as perylene (which consists of a series of fused benzene rings) is combined with an electron acceptor such as iodine.
1992 Sci. News 1 Feb. 70/2 Moerner and Basché made a clear, 10-micron-thick, polyethylene film that contained the organic compound perylene.
This entry has been updated (OED Third Edition, December 2005; most recently modified version published online March 2022).
<
n.1910
随便看

 

英语词典包含1132095条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2024/12/23 23:44:27