Hydrogen Halides
Hydrogen Halides - Related Videos
06:06
Hydrogenation
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2023
Source: Vy M. Dong and Zhiwei Chen, Department of Chemistry, University of California, Irvine, CA This experiment will demonstrate the hydrogenation of chalcone as an example of an alkene hydrogenation reaction (Figure 1). In this experiment, palladium on carbon (Pd/C) will be used as a heterogeneous catalyst for the process. A balloon will be used to supply the hydrogen atmosphere. Figure 1: Diagram showing the hydrogenation of chalcone to 3-phenylpropiophenone.
![The Synthesis of [Sn<sub>10</sub>(Si(SiMe<sub>3</sub>)<sub>3</sub>)<sub>4</sub>]<sup>2</sup><sup>-</sup> Using a Metastable Sn(I) Halide Solution Synthesized via a Co-condensation Technique](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F54498.jpg%3Fv%3D2026-09-28%252016%253A08%253A49&w=750&q=75)
12:43
The Synthesis of [Sn10(Si(SiMe3)3)4]2- Using a Metastable Sn(I) Halide Solution Synthesized via a Co-condensation Technique
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Cited by 3 •
2016
The disproportionation reaction of a metastable Sn(I) chloride solution, obtained via the preparative co-condensation technique, is used for the synthesis of a metalloid tin cluster compound.
02:45
Alkyl Halides
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2023
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...
08:56
Catalytic Reactor: Hydrogenation of Ethylene
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2023
Source: Kerry M. Dooley and Michael G. Benton, Department of Chemical Engineering, Louisiana State University, Baton Rouge, LA The hydrogenation of ethylene (C2H4) to ethane (C2H6) has often been studied as a model reduction reaction in characterizing new metal catalysts.1-2 While supported nickel is not the most active metal catalyst for this reaction, it is active enough that reaction can take place at < 200°C. The reaction typically involves adsorbed, dissociated hydrogen (H2) reacting...
01:12
Acid Halides to Esters: Alcoholysis
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2025
Alcoholysis is a nucleophilic acyl substitution reaction in which an alcohol functions as a nucleophile. Acid halides react with alcohol to produce esters. The mechanism proceeds in three steps: First, the alcohol acts as a nucleophile and attacks the acyl carbon to form a tetrahedral intermediate. Next, the carbonyl re-forms with the loss of a chloride ion. Lastly, the positively charged intermediate loses a proton to give an ester as the final product along with H3O+, making HCl an...
FAQs
Water participates directly in the acid-base process: a hydrogen halide transfers its proton to a water molecule, producing hydronium and a halide ion. This separates the original H-X bonding pattern into ionic products in solution. The result provides a molecular explanation for why these compounds are useful examples when studying proton transfer and acid-base behavior.
The H-X bond is central to both acidity and reactivity. Its strength affects how readily the bonded hydrogen can be transferred, while bond polarity reflects how unevenly electrons are distributed between hydrogen and the halogen. Considering these factors together helps explain why related hydrogen halides can show different chemical behavior without treating acidity as an isolated property.
Hydrogen halides connect two levels of chemical description. As molecules, they illustrate polar covalent bonding; in water, their proton-transfer behavior produces hydronium and halide ions. Examining both stages prevents confusion between the structure of the starting compound and the ionic species present after reaction, making them useful for linking bonding concepts with acid-base chemistry.
In organic chemistry, hydrogen halides serve as reagents for introducing halogens into organic molecules. Their value comes from the combination of proton-transfer chemistry and a halogen that can become part of the product. The specific reaction outcome depends on the molecular system, so the reagent is selected in relation to the desired halogen-containing compound.
Hydrogen halides can also be used to prepare inorganic halide compounds. In this context, attention shifts from proton transfer in water to the formation of products containing halide components. Such applications demonstrate that hydrogen halides are not studied only as acid-base examples; they also function as chemically useful starting reagents in inorganic synthesis.
Comparing these compounds allows chemists to relate changes among the halogens to bond strength, molecular polarity, acidity, and reactivity. The comparison is useful because the compounds share a simple hydrogen-halogen framework while displaying property changes that can be interpreted through periodic trends rather than through unrelated molecular structures.