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Related Concept Videos

Isomerism02:43

Isomerism

Isomers are molecules with the same molecular formula but different structural arrangements. Isomers can be further classified into constitutional isomers and stereoisomers. Constitutional isomers differ in the connectivity of their constituent atoms. For example, 2-butanol and diethyl ether are constitutional isomers, as they have the same chemical formula, C4H10O, but differ in the connectivity of the carbon and oxygen atoms. Constitutional isomers have different physical and chemical...
Stereoisomerism02:52

Stereoisomerism

Isomerism in Complexes
Isomers are different chemical species that have the same chemical formula.
Transition metal complexes often exist as geometric isomers, in which the same atoms are connected through the same types of bonds but with differences in their orientation in space. Coordination complexes with two different ligands in the cis and trans positions from a ligand of interest form isomers. For example, the octahedral [Co(NH3)4Cl2]+ ion has two isomers (Figure 1) In the cis...
Constitutional Isomers of Alkanes02:18

Constitutional Isomers of Alkanes

Organic compounds of the same molecular formula can have different structural formulas called constitutional isomers, and the phenomenon is known as constitutional isomerism. Alkanes with four or more carbons showing multiple structures with the same molecular formula thereby exhibit constitutional isomerism.
The linear isomer of an alkane is prefixed by the term “n”; hence a linear isomer of pentane is known as n-pentane. Based on the type of branching, some of the branched isomers are given...
Stereoisomerism of Cyclic Compounds02:33

Stereoisomerism of Cyclic Compounds

In this lesson, we delve into the role of ring conformation and its stability, which determines the spatial arrangement and, consequently, the molecular symmetry and stereoisomerism of cyclic compounds. 1,2-Dimethylcyclohexane is used as a case study to evaluate the possible number of stereoisomers. Here, given the multiple (n = 2) chiral centers, there are 2n = 4 possible configurations that lack a plane of symmetry, as the ring skeleton exists in a non-planar chair conformation. In addition,...
Stereoisomers02:32

Stereoisomers

On the basis of mirror symmetry, stereoisomers of an organic molecule can be further classified into diastereomers and enantiomers. Diastereomers are stereoisomers that are not mirror images of each other. Substituted alkenes, such as the cis and trans isomers of 2-butene, are diastereomers, as these molecules exhibit different spatial orientations of their constituent atoms, are not mirror images of each other, and do not interconvert. Here, the interconversion is suppressed due to restricted...
Isomerism in Alkenes02:01

Isomerism in Alkenes

Alkenes like 1-butene and 2-butene exhibit constitutional isomerism, as they differ in the position of the double bond. Further, 2-butene exhibits stereoisomerism and exists as two distinct compounds differing in spatial arrangement.
An isomer is called cis-2-butene when the methyl groups are on the same side of the double bond, and the other stereoisomer, in which methyl groups are on the opposite side of the double bond, is called trans-2-butene. The cis and trans stereoisomers are not...

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Related Experiment Video

Updated: Jun 13, 2026

Coulomb Explosion Imaging as a Tool to Distinguish Between Stereoisomers
08:51

Coulomb Explosion Imaging as a Tool to Distinguish Between Stereoisomers

Published on: August 18, 2017

Quantum interference distinguishes between constitutional isomers.

Jens Tüxen1, Stefan Gerlich, Sandra Eibenberger

  • 1Department of Chemistry, University of Basel, St. Johannsring 19, 4056 Basel, Switzerland.

Chemical Communications (Cambridge, England)
|May 12, 2010
PubMed
Summary
This summary is machine-generated.

Matter waves, a quantum phenomenon of massive bodies, are sensitive to molecular structure. This study demonstrates their ability to distinguish between constitutional isomers, revealing quantum effects in molecular identification.

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Related Experiment Videos

Last Updated: Jun 13, 2026

Coulomb Explosion Imaging as a Tool to Distinguish Between Stereoisomers
08:51

Coulomb Explosion Imaging as a Tool to Distinguish Between Stereoisomers

Published on: August 18, 2017

Determination of the Photoisomerization Quantum Yield of a Hydrazone Photoswitch
09:33

Determination of the Photoisomerization Quantum Yield of a Hydrazone Photoswitch

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Spatial Separation of Molecular Conformers and Clusters
10:37

Spatial Separation of Molecular Conformers and Clusters

Published on: January 9, 2014

Area of Science:

  • Quantum mechanics
  • Physical chemistry

Background:

  • Matter waves, proposed by de Broglie, describe the wave-like nature of massive particles.
  • This quantum phenomenon is fundamental to understanding the behavior of matter at microscopic scales.

Purpose of the Study:

  • To investigate the sensitivity of matter waves to the fine details of molecular structure.
  • To explore the potential of matter waves in differentiating between constitutional isomers.

Main Methods:

  • Theoretical analysis of matter wave interactions with molecules.
  • Simulations modeling the behavior of matter waves interacting with constitutional isomers.

Main Results:

  • Matter waves exhibit distinct interference patterns when interacting with different constitutional isomers.
  • The sensitivity of matter waves allows for the differentiation of molecules with the same chemical formula but different structural arrangements.

Conclusions:

  • Matter wave properties can be exploited for molecular structure determination.
  • This work highlights a novel quantum approach for distinguishing constitutional isomers, with potential applications in chemical analysis and metrology.