Open-chain Sentence Examples
If we accept Kekule's formula for the benzene nucleus, then we may expect the double linkages to be opened up partially, either by oxidation or reduction, with the formation of di-, tetra-, or hexa-hydro derivatives, or entirely, with the production of open chain compounds.
Generally rupture occurs at more than one point; and rarely are the six carbon atoms of the complex regained as an open chain.
These compounds retain their aliphatic nature, and are best classified with open-chain compounds, into which, in general, they are readily converted.
Systems which are generally unsaturated compounds, often of considerable stability, and behave as nuclei; these compounds constitute a well-individualized class exhibiting closer affinities to benzenoid substances than to the open-chain series.
Thelfirst four substances are readily formed from, and converted into, the corresponding dihydroxy open-chain compound; these substances are truly aliphatic in character.Advertisement
It is convenient to distinguish between aliphatic and aromatic acids; the first named being derived from open-chain hydrocarbons, the second from ringed hydrocarbon nuclei.
In addition to these, a series of open-chain olefine terpenes is known.
In contrast, open chain exercises such as the leg extension machine isolate one muscle group.