Delocalised and localised chemical bond - Theory + Examples #mscchemistrynotes @itschemistrytime
By It's chemistry time
Published Loading...
N/A views
N/A likes
AI Summary of "Delocalised and localised chemical bond - Theory + Examples #mscchemistrynotes @itschemistrytime"
Get instant insights and key takeaways from this YouTube video by It's chemistry time.
Localized vs. Delocalized Bonds
π Localized bonds are fixed between two specific atoms or nuclei, meaning their position does not shift.
π Sigma bonds ( bonds) are typically localized, while pi bonds ( bonds) can be either localized or delocalized.
βοΈ Molecules containing only localized bonds (e.g., Hβ, HβO, NHβ) can be represented by a single Lewis structure.
Delocalized Bonding and Resonance
π Delocalized bonds occur when electrons (especially electrons) are not fixed but move throughout the molecular system, often due to conjugation.
βοΈ A molecule exhibiting delocalization (like Benzene) cannot be represented by a single Lewis structure; instead, it is represented as a resonance hybrid of multiple contributing structures (canonical forms).
π§ͺ Benzene is the classic example, possessing six localized bonds (C-C and C-H) and three delocalized bonds moving around the ring.
Resonance Structures and Representation
βοΈ Resonance structures are indicated by a double-headed arrow () between the contributing structures (canonical forms).
𧬠The actual structure is the resonance hybrid, which is a combination or average of all contributing structures.
π― Contributing structures are also called canonical structures, and the final, stabilized structure is the hybrid.
Key Points & Insights
β‘οΈ Focus on understanding concepts over rote memorization in Organic Chemistry, as understanding allows you to derive answers independently.
β‘οΈ Localized bonds are fixed (e.g., bonds), while delocalized bonds move, usually indicated by electrons in a conjugated system.
β‘οΈ A molecule with only localized bonds requires only one Lewis structure for representation (e.g., Hβ, HβO).
β‘οΈ Molecules exhibiting conjugation display delocalization and require multiple resonance structures to be accurately described.
πΈ Video summarized with SummaryTube.com on Oct 14, 2025, 11:45 UTC
πTranscript
Loading transcript...
πVideo Description
TranslateUpgrade
π Itβs Chemistry Time β Notes for M.Sc. Chemistry (All Semesters)
Dear Students πΈ
If you are preparing for M.Sc. Chemistry, here you will get *complete, authentic, and well-structured notes covering all four semesters. These notes are prepared in a systematic way, with each topic arranged unit-wise.
π How to Get Notes
1. Just WhatsApp me at +91 92860 95602 with the word βNotesβ and mention your *Semester(1st, 2nd, 3rd, or 4th).
2. I will share my QR code with you.
3. After payment, kindly share the screenshot.
4. You will then be added to the respective Telegram Group for that semester.
β¨ Each group contains PDF notes unit-wise, according to the syllabus:
π Semester-wise Notes
M.Sc. Chemistry First Semester β Total PDFs: 220
* Partial molar properties
* Aromatic & aliphatic substitution reactions
* Classical thermodynamics
* Thermodynamics & kinetic stability
* Group theory, MOT, CFT
* Reaction mechanisms (organic & inorganic)
* Stereochemistry, bonding, rearrangements
* Non-ideal systems, chemical dynamics, etc.and more ,,,,
M.Sc. Chemistry Second Semesterβ Total PDFs: 200
* Addition to multiple bonds
* Photochemistry (alkenes, aromatic, etc.)
* Transition metal reaction mechanisms
* Free radical reactions
* Stereochemistry, HSAB, bonding
* Surface chemistry, metal pi acid complex
* Spectra & statistical thermodynamics and more ,,,,
M.Sc. Chemistry Third Semester β Total PDFs: 212
* Advanced photochemistry & pericyclic reactions
* Raman, IR, UV-Vis, 1H NMR, ESR, X-ray spectroscopy
* Electrochemistry, quantum, non-equilibrium thermodynamics
* Lanthanides & actinides
* Surface chemistry, macromolecules, medicinal chemistry
* Atomic spectroscopy, charge transfer, catalysis and more,,,,,
M.Sc. Chemistry Fourth Semester β Total PDFs: 121+
* Miscellaneous photochemical topics
* Bioorganic chemistry (prostaglandins, steroids, alkaloids, pigments, etc.)
* Metal insulator & semiconductors
* Protection groups, disconnection approach
* Soil & environmental chemistry
* Oxidation & Reduction
* Mass Spectroscopy and more ,,,,,
π½οΈ Here is a demo video showing how notes are arranged and provided in the Telegram groups:
π [Watch Video] (https://youtu.be/erUoELczjSE)
π‘ My goal is to provide you with reliable, exam-focused notes so that your preparation becomes easier, structured, and effective.
Thank you for your trust πΈ
Stay consistent, stay confident π
π² Contact: +91 92860 95602
Full video URL: youtube.com/watch?v=kmLj8NeMY8Y
Duration: 20:10
Recently Summarized Videos
πRelated Tags
# localised and delocalised chemistry bond# complete pdf notes# easiest explanation# MSc Chemistry# it's chemistry time
Total Video Summary Page Visits :1
AI Summary of "Delocalised and localised chemical bond - Theory + Examples #mscchemistrynotes @itschemistrytime"
Get instant insights and key takeaways from this YouTube video by It's chemistry time.
Localized vs. Delocalized Bonds
π Localized bonds are fixed between two specific atoms or nuclei, meaning their position does not shift.
π Sigma bonds ( bonds) are typically localized, while pi bonds ( bonds) can be either localized or delocalized.
βοΈ Molecules containing only localized bonds (e.g., Hβ, HβO, NHβ) can be represented by a single Lewis structure.
Delocalized Bonding and Resonance
π Delocalized bonds occur when electrons (especially electrons) are not fixed but move throughout the molecular system, often due to conjugation.
βοΈ A molecule exhibiting delocalization (like Benzene) cannot be represented by a single Lewis structure; instead, it is represented as a resonance hybrid of multiple contributing structures (canonical forms).
π§ͺ Benzene is the classic example, possessing six localized bonds (C-C and C-H) and three delocalized bonds moving around the ring.
Resonance Structures and Representation
βοΈ Resonance structures are indicated by a double-headed arrow () between the contributing structures (canonical forms).
𧬠The actual structure is the resonance hybrid, which is a combination or average of all contributing structures.
π― Contributing structures are also called canonical structures, and the final, stabilized structure is the hybrid.
Key Points & Insights
β‘οΈ Focus on understanding concepts over rote memorization in Organic Chemistry, as understanding allows you to derive answers independently.
β‘οΈ Localized bonds are fixed (e.g., bonds), while delocalized bonds move, usually indicated by electrons in a conjugated system.
β‘οΈ A molecule with only localized bonds requires only one Lewis structure for representation (e.g., Hβ, HβO).
β‘οΈ Molecules exhibiting conjugation display delocalization and require multiple resonance structures to be accurately described.
πΈ Video summarized with SummaryTube.com on Oct 14, 2025, 11:45 UTC
Loading Similar Videos...
Recently Summarized Videos
Get the Chrome Extension
Summarize youtube video with AI directly from any YouTube video page. Save Time.
Install our free Chrome extension. Get expert level summaries with one click.