polyynen.

Brit.

/ˈpɒlɪʌɪn/, U.S.

/ˈpɑliˌaɪn/

Forms: 1900s– polyine, 1900s– polyyne.

Origin: Formed within English, by derivation. Etymons: poly- comb. form, -yne suffix.

Etymology: < poly- comb. form + -yne suffix.

Chemistry.

Any of a class of organic compounds containing two or more carbon–carbon triple bonds, esp. in a chain of conjugated single and triple bonds.

ΚΠ

1932 D. Althausen & C. S. Marvel in Jrnl. Amer. Chem. Soc. 54 1174 This rearrangement seems to be characteristic of the type of poly-ine hydrocarbon which we have been studying.

1932 D. Althausen & C. S. Marvel in Jrnl. Amer. Chem. Soc. 54 4451 The preparation of bis-1,1′-(1,3-diphenylindyl) seemed to offer the most satisfactory method of checking up on the suggestion that diindenes are produced when the polyines undergo spontaneous rearrangement.

1969 E. Winterfeldt in H. G. Viehe Chem. Acetylenes iv. 279 Conjugated polyynes have been converted to substituted thiophenes by thiol addition.

1996 Nature 12 Sept. 125/1 This approach is based on the remarkable propensity of a class of chemicals called cyclic polyynes to rearrange themselves into fullerenes in the gas phase.

This is a new entry (OED Third Edition, September 2006; most recently modified version published online March 2022).

单词	polyyne
释义	polyynen. Brit. /ˈpɒlɪʌɪn/, U.S. /ˈpɑliˌaɪn/ Forms: 1900s– polyine, 1900s– polyyne. Origin: Formed within English, by derivation. Etymons: poly- comb. form, -yne suffix. Etymology: < poly- comb. form + -yne suffix. Chemistry. Any of a class of organic compounds containing two or more carbon–carbon triple bonds, esp. in a chain of conjugated single and triple bonds. ΚΠ 1932 D. Althausen & C. S. Marvel in Jrnl. Amer. Chem. Soc. 54 1174 This rearrangement seems to be characteristic of the type of poly-ine hydrocarbon which we have been studying. 1932 D. Althausen & C. S. Marvel in Jrnl. Amer. Chem. Soc. 54 4451 The preparation of bis-1,1′-(1,3-diphenylindyl) seemed to offer the most satisfactory method of checking up on the suggestion that diindenes are produced when the polyines undergo spontaneous rearrangement. 1969 E. Winterfeldt in H. G. Viehe Chem. Acetylenes iv. 279 Conjugated polyynes have been converted to substituted thiophenes by thiol addition. 1996 Nature 12 Sept. 125/1 This approach is based on the remarkable propensity of a class of chemicals called cyclic polyynes to rearrange themselves into fullerenes in the gas phase. This is a new entry (OED Third Edition, September 2006; most recently modified version published online March 2022). < n.1932
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