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Acid Halides to Alcohols: LiAlH4 Reduction01:19

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Acid halides are reduced to alcohols in the presence of a strong reducing agent like lithium aluminum hydride.
The mechanism proceeds in three steps. First, the nucleophilic hydride ion attacks the carbonyl carbon of the acid halide to form a tetrahedral intermediate. Next, the carbonyl group is re-formed, and the halide ion departs as a leaving group, generating an aldehyde. A second nucleophilic attack by the hydride yields an alkoxide ion, which, upon protonation, gives a primary alcohol as...
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Chemical stoichiometry describes the quantitative relationships between reactants and products in chemical reactions.
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The elements in group 18 are noble gases (helium, neon, argon, krypton, xenon, and radon). They earned the name “noble” because they were assumed to be nonreactive since they have filled valence shells. In 1962, Dr. Neil Bartlett at the University of British Columbia proved this assumption to be false.
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Preparation of Aldehydes and Ketones from Nitriles and Carboxylic Acids01:24

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Although it is possible to reduce a carboxylic acid to an aldehyde, strong reducing agents, like lithium aluminum hydride (LAH), prohibit a controlled reduction, instead causing the generated aldehyde to instantly over-reduce to a primary alcohol.
Reducing carboxylic acid derivatives like acyl chlorides (RCOCl), esters (RCO2R′), and nitriles (RCN) using milder aluminum hydride agents like lithium tri-tert-butoxyaluminum hydride [LiAlH(O-t-Bu)3] and diisobutylaluminum hydride [DIBAL-H]...
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Related Experiment Video

Updated: Dec 29, 2025

1,3,5-Triphenylbenzene and Corannulene as Electron Receptors for Lithium Solvated Electron Solutions
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1,3,5-Triphenylbenzene and Corannulene as Electron Receptors for Lithium Solvated Electron Solutions

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Methods for preparing quantum gases of lithium.

Randall G Hulet1, Jason H V Nguyen1, Ruwan Senaratne1

  • 1Department of Physics and Astronomy, Rice University, Houston, Texas 77005, USA.

The Review of Scientific Instruments
|February 5, 2020
PubMed
Summary
This summary is machine-generated.

Lithium atoms are crucial for quantum gas experiments due to tunable interactions and dual isotopes. This review details methods overcoming experimental challenges for lithium atom manipulation in quantum research.

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Last Updated: Dec 29, 2025

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A Protocol for Safe Lithiation Reactions Using Organolithium Reagents
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A Protocol for Safe Lithiation Reactions Using Organolithium Reagents

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Area of Science:

  • Atomic physics
  • Quantum gas experiments
  • Quantum simulation

Background:

  • Lithium's unique properties, including tunable interactions via Feshbach resonances and two stable isotopes (fermionic ⁶Li and bosonic ⁷Li), make it valuable for atomic quantum gas research.
  • Despite its advantages, working with lithium atoms presents significant experimental challenges that require specialized techniques.

Purpose of the Study:

  • To review and present methods developed to address experimental challenges associated with using lithium in atomic quantum gas experiments.
  • To provide essential resources, including spectral diagrams and Feshbach resonance plots, for researchers working with both ⁶Li and ⁷Li isotopes.

Main Methods:

  • Review of established and adapted techniques for lithium atom manipulation.
  • Detailed description of beam and vapor sources, Zeeman slowers, and sub-Doppler laser cooling.
  • Discussion of laser sources at 671 nm and all-optical trapping and cooling strategies.

Main Results:

  • Compilation of critical experimental methods for handling lithium atoms.
  • Presentation of spectral data and Feshbach resonance plots for both ⁶Li and ⁷Li.
  • Insights into overcoming specific hurdles in lithium-based quantum gas experiments.

Conclusions:

  • The reviewed methods provide a comprehensive toolkit for researchers utilizing lithium in quantum gas experiments.
  • Successful implementation of these techniques enables precise control over lithium atoms, advancing quantum simulation and atomic physics research.