cyclic ring
61Hückel's rule — In organic chemistry, Hückel s rule estimates whether a planar ring molecule will have aromatic properties. The quantum mechanical basis for its formulation was first worked out by physical chemist Erich Hückel in 1931. It was first expressed… …
62Chlorophyll a — Identifiers PubChem 6433192 …
63Intramolecular Diels-Alder Cycloaddition — The basic Diels Alder reaction is the reaction between a diene and a dienophile to form a cyclic ring structure through the formation of new double bond and two new sigma bonds. The reaction was discovered in 1928 by Otto Paul Hermann Diels and… …
64Phenyl group — In organic chemistry, the phenyl group or phenyl ring (often abbreviated as Ph) is the functional group with the formula: C6H5where the six carbon atoms are arranged in a cyclic ring structure. This hydrophobic, highly stable and aromatic… …
65Fusion bonded epoxy coating — Fusion bonded epoxy coating, also known as fusion bond epoxy powder coating and commonly referred to as FBE coating, is an epoxy based powder coating that is widely used to protect steel pipe used in pipeline construction, concrete reinforcing… …
66Class automorphism — In mathematics, in the realm of group theory, a class automorphism is an automorphism of a group that sends each element to within its conjugacy class. The class automorphisms form a subgroup of the automorphism group. Some facts: Every inner… …
67alicyclic — adjective Of a class of organic compounds having both aliphatic (chain) and cyclic (ring) structure …
68alternateprenominal alternatingprenominal — Cyclic Cyc lic (s?k l?k or s? kl?k), Cyclical Cyc lic*al (s?k l? kal), a. [Cf. F. cycluque, Gr. kykliko s, fr. ky klos See {Cycle}.] 1. Of or pertaining to a cycle or circle; moving in cycles; as, cyclical time. Coleridge. [1913 Webster] 2.… …
69alternateprenominal every otherprenominal every secondprenominal — Cyclic Cyc lic (s?k l?k or s? kl?k), Cyclical Cyc lic*al (s?k l? kal), a. [Cf. F. cycluque, Gr. kykliko s, fr. ky klos See {Cycle}.] 1. Of or pertaining to a cycle or circle; moving in cycles; as, cyclical time. Coleridge. [1913 Webster] 2.… …
70alternatingprenominal oscillatingprenominal — Cyclic Cyc lic (s?k l?k or s? kl?k), Cyclical Cyc lic*al (s?k l? kal), a. [Cf. F. cycluque, Gr. kykliko s, fr. ky klos See {Cycle}.] 1. Of or pertaining to a cycle or circle; moving in cycles; as, cyclical time. Coleridge. [1913 Webster] 2.… …
