Chemistry HL
Chemistry HL
6
Chapters
243
Notes
Chapter 1 - Models Of The Particulate Nature Of Matter
Chapter 1 - Models Of The Particulate Nature Of Matter
Chapter 2 - Models Of Bonding & Structure
Chapter 2 - Models Of Bonding & Structure
Chapter 3 - Classification Of Matter
Chapter 3 - Classification Of Matter
Chapter 4 - What Drives Chemical Reactions?
Chapter 4 - What Drives Chemical Reactions?
Chapter 5 - How Much, How Fast & How Far?
Chapter 5 - How Much, How Fast & How Far?
Chapter 6 - What Are The Mechanisms Of Chemical Change?
Chapter 6 - What Are The Mechanisms Of Chemical Change?
IB Resources
Chapter 6 - What Are The Mechanisms Of Chemical Change?
Chemistry HL
Chemistry HL

Chapter 6 - What Are The Mechanisms Of Chemical Change?

Unveiling Halogenoalkane Reactivity: Nucleophilic Substitution Insights

Word Count Emoji
390 words
Reading Time Emoji
2 mins read
Updated at Emoji
Last edited on 5th Nov 2024

Table of content

Let's Set The Stage! 🎬

  • Topic: Nucleophilic substitution & how halogen identity affects it.
  • Why Care?: Speed & type of reactions can depend on tiny details, like which halogen's attached!

Key Concepts 🗝️

  • Nucleophilic substitution: Where a nucleophile replaces another atom/group in a molecule.
  • SN1 and SN2: Two types of nucleophilic substitution mechanisms.

The Role of Halogens 💡

  • The quicker the carbon-halogen bond breaks, the faster the reaction.
  • Fact: Stronger bonds break slower. Check bond enthalpy.
  • Example: C–F bond (in fluoroalkanes) is super strong (492kJmol−1) = Very slow to react.

Trend Alert! 📉

Down group 17 (halogens)

  • Carbon-halogen bond strength decreases (bigger atom, less electronegative).
  • Halide anions' stability increases.

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IB Resources
Chapter 6 - What Are The Mechanisms Of Chemical Change?
Chemistry HL
Chemistry HL

Chapter 6 - What Are The Mechanisms Of Chemical Change?

Unveiling Halogenoalkane Reactivity: Nucleophilic Substitution Insights

Word Count Emoji
390 words
Reading Time Emoji
2 mins read
Updated at Emoji
Last edited on 5th Nov 2024

Table of content

Let's Set The Stage! 🎬

  • Topic: Nucleophilic substitution & how halogen identity affects it.
  • Why Care?: Speed & type of reactions can depend on tiny details, like which halogen's attached!

Key Concepts 🗝️

  • Nucleophilic substitution: Where a nucleophile replaces another atom/group in a molecule.
  • SN1 and SN2: Two types of nucleophilic substitution mechanisms.

The Role of Halogens 💡

  • The quicker the carbon-halogen bond breaks, the faster the reaction.
  • Fact: Stronger bonds break slower. Check bond enthalpy.
  • Example: C–F bond (in fluoroalkanes) is super strong (492kJmol−1) = Very slow to react.

Trend Alert! 📉

Down group 17 (halogens)

  • Carbon-halogen bond strength decreases (bigger atom, less electronegative).
  • Halide anions' stability increases.

Unlock the Full Content! File Is Locked Emoji

Dive deeper and gain exclusive access to premium files of Chemistry HL. Subscribe now and get closer to that 45 🌟

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