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Adj.1.6-membered - of a chemical compound having a ring with six members6-membered - of a chemical compound having a ring with six members; "having three carbon and three nitrogen atoms in a six-membered ring"
membered - having members; normally used in chemistry in combination with a number
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The bands in the region 500-650 [cm.sup.-1] were associated with the vibrations of the double rings (4-membered ring and 6-membered ring).
Similarly, in the reaction class (10), the formation of 6-membered ring cyclic ether from the QOOH with a secondary radical site was estimated by analogy with the formation of 6-membered ring cyclic ether from QOOH with a primary radical site while cutting down the activation energy by 2 kcal/mol, because for a given ring size, the barrier for ring closure follows the order tertiary < secondary < primary [38].
With pyrolysis conditions becoming more severe, all forms of nitrogen were eventually present in 6-membered rings.
Boronic acids, organic derivatives of boric acid, can form stable 5-membered cyclic dioxaborolanes or 6-membered dioxaborinanes with polyols [7].
Etoricoxib, in particular, belongs to the 6-membered core group and, as other 1,2-diarylpyridine derivatives, it has shown good COX-2 inhibitor potency and selectivity.
Notably, Sangshetti and Shinde [36] stated that changes in the substituents linked to the nitrogen heteroatoms in the 6-membered ring might foster increased antifungal activity.
15 (c)) to form OH radical ((R12)-(R13)), and the isomerization reaction through the 6-membered ring transition state ((R14)) are important for ignition.