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N-(2-methoxyphenyl)piperazines
Chemistry * ''n-'', a lowercase prefix in chemistry denoting the straight-chain form of an open-chain compound in contrast to its branched isomer * ''N-'', an uppercase prefix in chemistry denoting that the substituent is bonded to the nitrogen, as in amines Mathematics, science and technology The italicized letter ''n'' is used in mathematics to denote an arbitrary number (usually a non-negative integer). * n-ary associativity, ''n''-ary associativity * n-ary code, ''n''-ary code * n-ary group, ''n''-ary group * n-back, ''n''-back * n-body problem, ''n''-body problem * n-category, ''n''-category * n-category number, ''n''-category number * n-connected space, ''n''-connected space * n-curve, ''n''-curve * n-dimensional space, ''n''-dimensional space * n-dimensional sequential move puzzle, ''n''-dimensional sequential move puzzle * n-electron valence state perturbation theory, ''n''-electron valence state perturbation theory (NEVPT) * n-entity, ''n''-entity * n-flake, ''n''-flake ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Open-chain Compound
In chemistry, an open-chain compound (also spelled as open chain compound) or acyclic compound (Greek prefix "α", ''without'' and "κύκλος", ''cycle'') is a compound with a linear structure, rather than a cyclic one. An open-chain compound having no side chains is called a straight-chain compound (also spelled as straight chain compound). Many of the simple molecules of organic chemistry, such as the alkanes and alkenes, have both linear and ring isomers, that is, both acyclic and cyclic, with the latter often classified as aromatic. For those with 4 or more carbons, the linear forms can have straight-chain or branched-chain isomers. The lowercase prefix ''n-'' denotes the straight-chain isomer; for example, ''n''-butane is straight-chain butane, whereas ''i''-butane is isobutane. Cycloalkanes are isomers of alkenes, not of alkanes, because the ring's closure involves a C-C bond. Having no rings (aromatic or otherwise), all open-chain compounds are aliphatic. Typically in bi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
