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Related Concept Videos

Halogens03:01

Halogens

24.2K
Group 17 elements, known as halogens, are nonmetals. At room temperature, fluorine and chlorine are gases, bromine is a liquid, and iodine a solid. Astatine is a highly unstable radioactive element, so currently, most of its properties are unknown due to its short half-life. Tennessine is a synthetic element also predicted to be in this group. 
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Electrophilic Aromatic Substitution: Fluorination and Iodination of Benzene01:13

Electrophilic Aromatic Substitution: Fluorination and Iodination of Benzene

8.0K
Bromination and chlorination of aromatic rings by electrophilic aromatic substitution reactions are easily achieved, but fluorination and iodination are difficult to achieve. Fluorine is so reactive that its reaction with benzene is difficult to control, resulting in poor yields of monofluoroaromatic products. To address this, Selectfluor reagent is used as a fluorine source in which a fluorine atom is bonded to a positively charged nitrogen.
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Alkyl Halides02:45

Alkyl Halides

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Structural Properties
Alkyl halides are halogen-substituted alkanes wherein one or more hydrogen atoms of an alkane is replaced by a halogen atom such as fluorine, chlorine, bromine, or iodine. The carbon atom in an alkyl halide is bonded to the halogen atom, which is sp3-hybridized and exhibits a tetrahedral shape.
Unlike alkyl halides, compounds in which a halogen atom is bonded to an sp2 -hybridized carbon atom of a carbon-carbon double bond (C=C) are called vinyl halides. Whereas aryl...
22.4K
Comparing Intermolecular Forces: Melting Point, Boiling Point, and Miscibility02:34

Comparing Intermolecular Forces: Melting Point, Boiling Point, and Miscibility

53.6K
Intermolecular forces are attractive forces that exist between molecules. They dictate several bulk properties, such as melting points, boiling points, and solubilities (miscibilities) of substances. Molar mass, molecular shape, and polarity affect the strength of different intermolecular forces, which influence the magnitude of physical properties across a family of molecules.
Temporary attractive forces like dispersion are present in all molecules, whether they are polar or nonpolar. They...
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Electrophilic Addition to Alkynes: Hydrohalogenation02:35

Electrophilic Addition to Alkynes: Hydrohalogenation

12.2K
Electrophilic addition of hydrogen halides, HX (X = Cl, Br or I) to alkenes forms alkyl halides as per Markovnikov's rule, where the hydrogen gets added to the less substituted carbon of the double bond. Hydrohalogenation of alkynes takes place in a similar manner, with the first addition of HX forming a vinyl halide and the second giving a geminal dihalide.
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ortho–para-Directing Deactivators: Halogens01:24

ortho–para-Directing Deactivators: Halogens

7.1K
Halogens are ortho–para directors. They are more electronegative than carbon. Therefore, as ring substituents, they can withdraw electrons through the inductive effect and deactivate the aromatic ring towards electrophilic substitution. Halogens also have an electron-donating resonance effect on the ring, which influences the orientation of the incoming electrophile. If an electrophile attacks at the ortho or the para position, the halogen donates electrons and stabilizes the intermediate...
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Related Experiment Video

Updated: Apr 5, 2026

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding
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From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding

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Correction: perfluoropropenyl-containing phosphines from HFC replacements.

Alan K Brisdon1, Hana Ali Ghaba, Bernd Beutel

  • 1School of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK. alan.brisdon@manchester.ac.uk.

Dalton Transactions (Cambridge, England : 2003)
|August 7, 2015
PubMed
Summary

This correction clarifies details regarding perfluoropropenyl-containing phosphines, which are derived from hydrofluorocarbon (HFC) replacements. The updated information ensures accuracy in the chemical synthesis and properties discussed in the original study.

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Area of Science:

  • Organometallic Chemistry
  • Fluorine Chemistry

Context:

  • This work addresses a correction to previously published research on perfluoropropenyl-containing phosphines.
  • The original study focused on compounds derived from hydrofluorocarbon (HFC) replacements.

Purpose:

  • To provide accurate chemical structures and synthetic details for perfluoropropenyl-containing phosphines.
  • To correct errors in the original publication to ensure scientific integrity.

Summary:

  • The correction pertains to the synthesis and characterization of specific organophosphorus compounds.
  • It rectifies details concerning perfluoropropenyl-containing phosphines derived from HFC alternatives.

Impact:

  • Ensures the reliability of data for researchers working with fluorinated phosphines.
  • Facilitates correct understanding and future research in fluorine and organophosphorus chemistry.