Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Hybridization of Atomic Orbitals I03:24

Hybridization of Atomic Orbitals I

The mathematical expression known as the wave function, ψ, contains information about each orbital and the wavelike properties of electrons in an isolated atom. When atoms are bound together in a molecule, the wave functions combine to produce new mathematical descriptions that have different shapes. This process of combining the wave functions for atomic orbitals is called hybridization and is mathematically accomplished by the linear combination of atomic orbitals. The new orbitals that...
π Molecular Orbitals of 1,3-Butadiene01:24

π Molecular Orbitals of 1,3-Butadiene

Conjugated dienes have lower heats of hydrogenation than cumulated and isolated dienes, making them more stable. The enhanced stabilization of conjugated systems can be understood from their π molecular orbitals.
The simplest conjugated diene is 1,3-butadiene: a four-carbon system where each carbon is sp2-hybridized and has an unhybridized p orbital that contains an unpaired electron. According to molecular orbital theory, atomic orbitals combine to form molecular orbitals such that the number...
Radicals: Electronic Structure and Geometry01:07

Radicals: Electronic Structure and Geometry

This lesson delves into the geometry of a radical, which is influenced by the electronic structure of the molecule. The principle is similar to that of a lone pair, where the unpaired electron influences the geometry at the radical center.
Accordingly, the structure of a trivalent radical lies between the geometries of carbocations and carbanions. An sp2-hybridized carbocation is trigonal planar, while an sp3-hybridized carbanion is trigonal pyramidal. Here, the difference in geometry is...
Spin–Spin Coupling Constant: Overview01:08

Spin–Spin Coupling Constant: Overview

In bromoethane, the three methyl protons are coupled to the two methylene protons that are three bonds away. In accordance with the n+1 rule, the signal from the methyl protons is split into three peaks with 1:2:1 relative intensities. The methylene protons appear as a quartet, with the relative intensities of 1:3:3:1.
Qualitatively, any spin plus-half nucleus polarizes the spins of its electrons to the minus-half state. Consequently, the paired electron in the hydrogen–carbon bond must have a...
Hybridization of Atomic Orbitals II03:35

Hybridization of Atomic Orbitals II

sp3d and sp3d 2 Hybridization
π Molecular Orbitals of the Allyl Cation and Anion01:18

π Molecular Orbitals of the Allyl Cation and Anion

An allyl group is a three-carbon conjugated system where the sp³-hybridized allylic carbon is bonded to a CH=CH2 group via a single bond. Allyl anions can be obtained by treating propene with a strong base that can deprotonate methyl groups. Allyl cations are formed as intermediates during substitution reactions involving allylic halides. In both cases, the hybridization of the allylic carbon changes from sp3 to sp2, giving rise to a carbon chain with three sp2-hybridized carbons, each with an...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Rotational Characterization of Four-Ring Polycyclic Aromatic Hydrocarbons: Toward the Detection of Fluoranthene and Cyanofluoranthene in Space.

The journal of physical chemistry letters·2026
Same author

Tuning halogen bond donor ability: benchmarking substituent effects in fluoroiodobenzenes.

Physical chemistry chemical physics : PCCP·2026
Same author

Application of Intensity Ratios to Disentangle Rotational Spectra of Large Molecular Clusters: Trifluoroethylene with up to 6 CO<sub>2</sub> Molecules.

The journal of physical chemistry. A·2025
Same author

Rotational Spectroscopy Pinpoints the Tetrahydrate as the Onset of Water Self-Aggregation in Sevoflurane Hydration.

The journal of physical chemistry letters·2025
Same author

Analysis of Drugs in Whole Blood by Paper Spray Mass Spectrometry with Integrated Solid-Phase Extraction.

Analytical chemistry·2025
Same author

A Pure Rotational Spectroscopic Study of Two Nearly-Equivalent Structures of Hexafluoroacetone Imine, (CF<sub>3</sub>)C=NH.

Molecules (Basel, Switzerland)·2025

Related Experiment Video

Updated: May 28, 2026

Isolating Free Carbenes, their Mixed Dimers and Organic Radicals
10:44

Isolating Free Carbenes, their Mixed Dimers and Organic Radicals

Published on: April 19, 2019

C-H···π interactions in the CHBrF2···HCCH weakly bound dimer.

Daniel A Obenchain1, Brandon J Bills, Cori L Christenholz

  • 1Department of Chemistry, Eastern Illinois University, Charleston, Illinois 61920, United States.

The Journal of Physical Chemistry. A
|October 8, 2011
PubMed
Summary

Researchers studied the CHBrF(2)···HCCH dimer using microwave spectroscopy. They determined its C(s) symmetric structure, revealing a C-H···π interaction between the molecules.

More Related Videos

Measurements of Long-range Electronic Correlations During Femtosecond Diffraction Experiments Performed on Nanocrystals of Buckminsterfullerene
08:44

Measurements of Long-range Electronic Correlations During Femtosecond Diffraction Experiments Performed on Nanocrystals of Buckminsterfullerene

Published on: August 22, 2017

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

Related Experiment Videos

Last Updated: May 28, 2026

Isolating Free Carbenes, their Mixed Dimers and Organic Radicals
10:44

Isolating Free Carbenes, their Mixed Dimers and Organic Radicals

Published on: April 19, 2019

Measurements of Long-range Electronic Correlations During Femtosecond Diffraction Experiments Performed on Nanocrystals of Buckminsterfullerene
08:44

Measurements of Long-range Electronic Correlations During Femtosecond Diffraction Experiments Performed on Nanocrystals of Buckminsterfullerene

Published on: August 22, 2017

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

Area of Science:

  • Physical Chemistry
  • Molecular Spectroscopy
  • Intermolecular Forces

Background:

  • Weakly bound complexes provide insights into non-covalent interactions.
  • Understanding these interactions is crucial for molecular recognition and crystal engineering.

Purpose of the Study:

  • To investigate the structure and bonding of the CHBrF(2)···HCCH dimer.
  • To characterize the intermolecular forces governing the complex formation.
  • To compare the structural features with related halogenated methane-acetylene complexes.

Main Methods:

  • Chirped-pulse and Balle-Flygare Fourier-transform microwave spectroscopy were employed.
  • Measurements were performed in the 6-18 GHz frequency range.
  • Spectra of multiple isotopologues, including bromine and carbon-13 variants, were analyzed.

Main Results:

  • The C(s) symmetric structure of the CHBrF(2)···HCCH dimer was determined.
  • A C-H···π interaction was identified, with a hydrogen bond distance of 2.670(8) Å.
  • The bromine atom was found to be positioned in the ab plane, 3.293(40) Å from an acetylene hydrogen atom.

Conclusions:

  • The study elucidates the specific binding interactions in the CHBrF(2)···HCCH complex.
  • The determined structure provides valuable data for computational chemistry models of halogenated methane-acetylene interactions.
  • Comparative analysis with CHClF(2)···HCCH offers further understanding of substituent effects on complex geometry.