Compounds with the same chemical formula that have different three-dimensional structures. See cis and trans isomers and chiral isomers.
Two compounds that have identical molecular formulas and atoms linked in the same order, but which have a different arrangement of atoms about an asymmetric carbon atom. D and L refer to particular configurations related to the configurations of D- and L-glyceraldehyde. All naturally occurring amino acids are L-isomers, and naturally occurring sugars generally are D-isomers.
two different molecules made up of the exact same atoms, having exactly the same neighbors, and differing only in spatial orientation.
an organic molecule having the same molecular structure as another molecule, but differing in the arangement of the atoms in space. (see isomer)
Two compounds with identical molecular formulas whose atoms are linked in the same order but in different spatial arrangements. In optical isomers, designated d and l, the atoms bonded to an asymmetric carbon atom are arranged in a mirror-image fashion. Geometric isomers include the cis and trans forms of molecules containing a double bond.
Isomers differing only in the spatial arrangement of the atoms
Molecules that differ only by mirror inversion of bonds at chiral centers (usually carbon atoms).
Isomers have the same atom connectivity.
Two or more compounds with the same molecular formula and the same atom-to-atom arrangement, but with different arrangement of atoms in space. stereoisomeric (adjective)
Isomers having the same constitution but differing in the spatial arrangement (configuration) of their atoms.
isomers that differ in the orientation of the atoms in space; e.g. enantiomers, diastereomers.
Isomers that differ only in the way that atoms are oriented in space; consist of geometrical and optical isomers.