Back Bonding in Chemistry | Inorganic and Organic Chemistry | IIT Jee Mains, Advance, NEET & AIIMS Video
Hello Guys,
Back-Bonding is one of the most important topic for Jee Mains, Advance, NEET & AIIMS.
Sigma bond: A covalent bond resulting from the formation of a molecular orbital by the end-to-end overlap of atomic orbitals, denoted by the symbol σ.
Pi bond: A covalent bond resulting from the formation of a molecular orbital by side-to-side overlap of atomic orbitals along a plane perpendicular to a line connecting the nuclei of the atoms, denoted by the symbol π.
now, coming to the explanation part:
If there is bonding between two atoms where one atom is having one vacant orbital and another is having one lone pair of electrons, then this electron pair is donated to that respective vacant orbital ..then this bonding is called p-p or p-d depending upon the orbital to which the pair is donated and from which the electron pair is donated. if both the orbitals are d, then its called d(pi)-d(pi) bonding. these bonding are also called back-bonding bonds.
Eg.
in BF3, B has incomplete octet so a fully filled p(pi) orbital of F donates a lone pair of e to the vacant orbital of B. so here pp(pi)-p(pi) bonding occurs and is known as back-bonding also.
dπ-pπ bonding is the formation of a π molecular orbital by the overlap of a d orbital on one atom with a
p or p* orbital on another atom.
An example is the orbital overlap in a metal carbonyl such as Ni(CO)₄.
Usually, one atom supplies both electrons to the new bond. If the
d-orbital supplies the electrons, the process is called backbonding.
Phosphorus does not form dπ-pπ bonds, because the d-orbitals on P are too high in energy.
However, the lone-pair electrons in phosphines (R₃P) make good
σ donors to the d orbitals of transition metals.
Electron withdrawing groups lower the energies of the
σ*orbitals. These antibonding orbitals can then act as backbonding
π acceptors. PF₃ is almost as good an acceptor as CO. Phosphites [(RO)₃P] are about half as good as CO.
Watch our others videos:-
---------------------------------------------------------------------------------------
Solvation and Solvation Energy for JEE
https://www.youtube.com/watch?v=pmPMefZS0nc
--------------------------------------------------------------------------------------
Supertrick to find Bond Order for resonating Structure (Part -II)
https://www.youtube.com/watch?v=zdFuZPNJz4o
---------------------------------------------------------------------------------------
Supertrick to Find Bond Order (Part - I)
https://www.youtube.com/watch?v=Oqf2mn-lDNk
---------------------------------------------------------------------------------------
Inert Pair Effect in p-Block Chemistry
https://www.youtube.com/watch?v=yQLZneRCeZ0
---------------------------------------------------------------------------------------
Tricks to understand basicity of Amines
https://www.youtube.com/watch?v=fHty94MxT8M
---------------------------------------------------------------------------------------
Drago Rule in Chemical Bonding
https://www.youtube.com/watch?v=pAQvjCENDP8
---------------------------------------------------------------------------------------
Bent's Rule in Chemical Bonding
https://www.youtube.com/watch?v=6PNGlX-jkKw
---------------------------------------------------------------------------------------
Graham's Law of Diffusion in Gases
https://www.youtube.com/watch?v=nSeMmVsnpK4
---------------------------------------------------------------------------------------
Thermal Stability of Salts (Theory)
https://www.youtube.com/watch?v=NEcZohujhLo
---------------------------------------------------------------------------------------
Like our Facebook Page and Share with friends
https://www.facebook.com/iitianexplains/
----------------------------------------------------------------------------------------
Thanks
We Hope you will enjoy the Lecture.
Team
IITian explains.
-~-~~-~~~-~~-~-
Please watch: "Tricks for dpi - ppi Bonding | Explained by IITian | Jee Mains, Advance, BITSAT, NEET & AIIMS"
https://www.youtube.com/watch?v=ca1GZPqvcw8
-~-~~-~~~-~~-~-
About the Site 🌐
This site provides links to random videos hosted at YouTube, with the emphasis on random. 🎥
Origins of the Idea 🌱
The original idea for this site stemmed from the need to benchmark the popularity of a video against the general population of YouTube videos. 🧠
Challenges Faced 🤔
Obtaining a large sample of videos was crucial for accurate ranking, but YouTube lacks a direct method to gather random video IDs.
Even searching for random strings on YouTube doesn't yield truly random results, complicating the process further. 🔍
Creating Truly Random Links 🛠️
The YouTube API offers additional functions enabling the discovery of more random videos. Through inventive techniques and a touch of space-time manipulation, we've achieved a process yielding nearly 100% random links to YouTube videos.
About YouTube 📺
YouTube, an American video-sharing website based in San Bruno, California, offers a diverse range of user-generated and corporate media content. 🌟
Content and Users 🎵
Users can upload, view, rate, share, and comment on videos, with content spanning video clips, music videos, live streams, and more.
While most content is uploaded by individuals, media corporations like CBS and the BBC also contribute. Unregistered users can watch videos, while registered users enjoy additional privileges such as uploading unlimited videos and adding comments.
Monetization and Impact 🤑
YouTube and creators earn revenue through Google AdSense, with most videos free to view. Premium channels and subscription services like YouTube Music and YouTube Premium offer ad-free streaming.
As of February 2017, over 400 hours of content were uploaded to YouTube every minute, with the site ranking as the second-most popular globally. By May 2019, this figure exceeded 500 hours per minute. 📈
List of ours generators⚡
Random YouTube Videos Generator
Random Film and Animation Video Generator
Random Autos and Vehicles Video Generator
Random Pets and Animals Video Generator
Random Travel and Events Video Generator
Random People and Blogs Video Generator
Random Entertainment Video Generator
Random News and Politics Video Generator
Random Howto and Style Video Generator
Random Education Video Generator