Glossary entry

German term or phrase:

5-Ring

English translation:

5-ring

Added to glossary by J Fox
Mar 12, 2003 07:17
21 yrs ago
German term

5-Ring

German to English Tech/Engineering Chemistry; Chem Sci/Eng chemistry
chemistry--"der 5-Ring kann bereits variiert werden"

Proposed translations

17 mins
Selected

5-ring

Eg:

Since a 5-ring polyphenyl ether is about 81% carbon...

See website below
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4 KudoZ points awarded for this answer. Comment: "OK, that's what i thought in the first place--jst checking. Thanks!"
15 mins

5 ring

of e.g. furan, heterocycles, you should see that from the context

... Range of 5 ring heterocycles: synthesis of 1,4-dicarbonyls in many different
guises. Cheap natural sources. Fused systems and in particular indole. ...
www.chem.ox.ac.uk/teaching/ssAromaticHeter.html - 15k - Im Archiv - Ähnliche Seiten

TP-5 - [ Diese Seite übersetzen ]
... Rule Tetrapyrroles 5. Ring-Expanded and Ring-Contracted Systems. ... contracted porphyrins
are named systematically according to the rules for naming heterocycles. ...
www.chem.qmul.ac.uk/iupac/tetrapyrrole/TP5.html - 7

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Note added at 2003-03-12 07:37:23 (GMT)
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Explanation:
there are chemical compounds with various number of rings, you have
five ring compounds, three ring compounds, also written 5 ring compounds and 3 ring compounds. Can also be written
five-ring, 5-ring
Peer comment(s):

neutral Gillian Scheibelein : these are compounds with 5 atoms in the ring and not with 5 rings!
8 mins
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22 mins

5-membered ring

These are compounds that have a ring with 5 atoms, usually all carbon, but also with sulphur, oxygen, nitrogen etc are also possible ( these are heterocycles).

Benzene, for example, C6H6 has a six-membered ring.

Compounds with 5 rings (annulenes) are something else entirely.

Ref.: I am a chemist
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