Unsymmetrical carbon atom
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Unsymmetrical — Un sym*met ric*al, a. 1. Wanting in symmetry, or due proportion pf parts. [1913 Webster] 2. (Biol.) Not symmetrical; being without symmetry, as the parts of a flower when similar parts are of different size and shape, or when the parts of… … The Collaborative International Dictionary of English
Isomerism — I*som er*ism, n. (Chem.) The state, quality, or relation, of two or more isomeric substances. [1913 Webster] {Physical isomerism} (Chem.), a former term for {optical isomerism}. {optical isomerism} (Chem.), the condition or relation of certain… … The Collaborative International Dictionary of English
optical isomerism — Isomerism I*som er*ism, n. (Chem.) The state, quality, or relation, of two or more isomeric substances. [1913 Webster] {Physical isomerism} (Chem.), a former term for {optical isomerism}. {optical isomerism} (Chem.), the condition or relation of… … The Collaborative International Dictionary of English
Physical isomerism — Isomerism I*som er*ism, n. (Chem.) The state, quality, or relation, of two or more isomeric substances. [1913 Webster] {Physical isomerism} (Chem.), a former term for {optical isomerism}. {optical isomerism} (Chem.), the condition or relation of… … The Collaborative International Dictionary of English
hydrocarbon — hydrocarbonaceous, adj. /huy dreuh kahr beuhn, huy dreuh kahr /, n. any of a class of compounds containing only hydrogen and carbon, as an alkane, methane, CH4, an alkene, ethylene, C2H4, an alkyne, acetylene, C2H2, or an aromatic compound,… … Universalium
carbonium ion — /kahr boh nee euhm/ an organic ion containing a positively charged carbon atom (opposed to carbanion). [CARBON + IUM] * * * ▪ chemical ion Introduction any member of a class of organic molecules with positive charges localized at a carbon… … Universalium
organometallic compound — ▪ chemical compound Introduction any member of a class of substances containing at least one metal to carbon bond in which the carbon is part of an organic group. Organometallic compounds constitute a very large group of substances that have… … Universalium
Cyclohexane conformation — A cyclohexane molecule in chair conformation. Hydrogen atoms in axial positions are shown in red, while those in equatorial positions are in blue. A cyclohexane conformation is any of several three dimensional shapes that a cyclohexane molecule… … Wikipedia
asymmetric — asymmetrically, adv. /ay seuh me trik, as euh /, adj. 1. not identical on both sides of a central line; unsymmetrical; lacking symmetry: Most faces are asymmetric. 2. (of a logical or mathematical relation) holding true of members of a class in… … Universalium
Nitrite — ion with an O N O bond angle of ca. 120° … Wikipedia
