four-membered


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Adj.1.four-membered - of a chemical compound having a ring with four membersfour-membered - of a chemical compound having a ring with four members
membered - having members; normally used in chemistry in combination with a number
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The four-membered MAMAMOO's sixth mini-album will be titled "Yellow Flower.
org, at a macromolecular scale, melanin's structure includes, "a four-membered ring--a chemical structure that may be conducive to creating certain kinds of batteries based on natural melanin pigments.
Phenylenes are a class of conjugated hydrocarbons composed of six- and four-membered rings, where the six-membered rings (hexagons) are adjacent only to four-membered rings, and every four-membered ring is adjacent to a pair of hexagons.
Using this new strategy, a wide range of representative and valuable chiral four-membered (hetero)cyclic and five-membered (hetero)cyclic organic molecules will be synthesized.
That strength of Penicillin is its molecular core, a cyclic four-membered amide ring termed a beta-lactam.
The 14 chapters of part one discuss topics such as the physical properties and theoretical studies of cyclobutane; antiaromaticity and aromaticity in carbocyclic four-membered rings; thermochemistry of cyclobutane and its derivatives; NMR (nuclear magnetic resonance) spectroscopy of cyclobutanes; conformation and configuration as stereochemical aspects of cyclobutane; synthesis of cyclobutanes; the application of cyclobutane derivatives in organic synthesis; structural effects of the cyclobutyl group on reactivity and properties; cation radicals in the synthesis and reactions of cyclobutanes; and highly unsaturated cyclobutane derivatives.
1,1-dimethylcyclobutane is a four-membered carbon ring with gem-dimethyl substituents.
13] ([phi] = unspecified anion) is the correct stoichiometry for a four-membered chain fragment of tetrahedra, and this has been confirmed by crystal-structure study (Cooper and Hawthorne, 2001).