Back Bonding in Chemistry | Inorganic and Organic Chemistry | IIT Jee Mains, Advance, NEET & AIIMS
ฝัง
- เผยแพร่เมื่อ 13 ต.ค. 2024
- 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
• Solvation and Solvatio...
--------------------------------------------------------------------------------------
Supertrick to find Bond Order for resonating Structure (Part -II)
• Supertrick to Find Bon...
---------------------------------------------------------------------------------------
Supertrick to Find Bond Order (Part - I)
• Supertrick to Find Bon...
---------------------------------------------------------------------------------------
Inert Pair Effect in p-Block Chemistry
• Inert Pair Effect | p-...
---------------------------------------------------------------------------------------
Tricks to understand basicity of Amines
• Basicity of Amines | ...
---------------------------------------------------------------------------------------
Drago Rule in Chemical Bonding
• Drago's Rule | Chemica...
---------------------------------------------------------------------------------------
Bent's Rule in Chemical Bonding
• Bent's Rule | Chemical...
---------------------------------------------------------------------------------------
Graham's Law of Diffusion in Gases
• Graham's Law of Diffus...
---------------------------------------------------------------------------------------
Thermal Stability of Salts (Theory)
• Thermal Stability of S...
---------------------------------------------------------------------------------------
Like our Facebook Page and Share with friends
/ 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"
• Tricks for dpi - ppi B...
~-~~-~~~-~~-~
Sir ji ye kya thaaa? Itna clear concept kon explain karta hain? I am speechless.... Gajab sir gajab.... No words at all excellent
Hi more gende
pehli br laga ki chemistry mei bhi interesting cheeze hai, nice very well explained. and the practical examples, and visualization given by u was the most fabulous part. thanks sir
*Best explanation sir best ...No words to say ...GOD BLESS YOU* 🙏
Keep Doing hard work. 😊
And Share with friends and family.
I watched it in ×2 speed but such crystal explanation just set everything in my mind...this is pure chemistry..he talked about also semiconductor that about induced charge...+ - interaction...such interesting lectures..why this channel not have required subscribers...
Guruji aap 4 sal phle bhi relevancy ka or quality ka dhyan rakhte the or abhi bhi. I'm ur student from old excel . I'm so glad that I'm your student ☺️
Guruji I am your follower after watching this video. I told my many friends about you and plus courses. But They don't take it seriously. I don't want that whatever I have missed, Anyone else will miss that. Thank you Guruji 🙏🔥🔥🔥
Chemistry inorganic se nafar hone lga tha. Ab aapka video ke baad mujhe inorganic se pyaar ho gya🥰😍
Had a loophole in this topic
Gr8 explaination
You are the gift jee aspirants have on the internet sir. Hats off to you 🔥🔥
Thanks a lot sir.
This being the first time I have been able to understand this awesome concept of backbonding
Alcl3 form , option me diya h(a) monomer as well as dimer .
(b) monomer only ,
to correct Option kya hoga.
You're God of chemistry.... I'm speechless
Don't say like that god is god
@@abdullahfaruque. lol🤣🤣🤣👍👍
No god of chemistry is paaras sir... from UNACADEMY
@@dr.vinodsharma8154 whatever you think, no one is god here, it is just your world is too small.
@@by7212 speaking some truth there
Sir please explain If there is backbondingin H3Si-N=C=S
Haa backbonding hoga
Yes....back Bonding h......"
Si" ke pas vacant d orbital Hai na aur nitrogen ke pas lone pairs. 2p pi - 3d pi back Bonding hogi
Thank you so much! This is the only video which cleared all my doubts! Also, I love the sentence "inke beech mei chemistry hi itni acchi hai!". 😂
Sir can bbr3 form dimer? Because it has a poor back bonding
No....dimer mein steric crowding ho jayegi so no dimer forms
Good afternoon sir,
How do you compare between 2pπ-2pπ , 3pπ-3pπ, and the process of dimerization.
Is it simply experimental for the greater stability gained during dimerization/back bonding.
How would we come to know just by looking at a compound whether dimerization or back bonding is going to be a better choice.
Awaiting for your quick reply.
Reply was so quick that it haven't arrived even after 5 year.😅😅😅.. jokes apart BTW what are u doing nowadays
Sir,
why is there no backbonding in N(CH3)3 but it is there in case of N(SiH3)3
Becoz c does not have vacant orbital to accommodate lone pair donated by nitrogen
Mohammad kashif alam sir is specially designed by GOD for iitjee aspirants...
best concepts in such a short time, that is why i watch your videos👏👏👏hats off to your teaching
Sir in BF3 F is electronegative so it will shift electron density towards itself so B will become more electron deficient so it should be best lewis acid
Sir, itna mehnat karta hain, ki video banate banate saath description main bhi pura concept double-explained rehta hain, uske saath research papers ke upaar kaam karna.....hats off to you, Mka Sir
Nice explanation. Pura concept clear ho gya. Thank you sir
Sir bsc 1st year 1st semester chemistry padhate hai ki nhi is chanel pe reply
No
sir luv you. my teachers never talked about proving such things while i always wanted to!!!
Sir your lectures are very interesting and focuses on fundamental concept therefore sir I request you to make a video on nomenclature of functional groups so that we can build a strong foundation for organic chemistry
Sir please compare the lewis acidic character between OCL2 and OF2 on the basis of backbonding
WOW just WOW!!!! Nothing left to say....
Thank you sir 🎉❤
Sir plz give some MCQ of back bonding ..sir it is very helpful to us..
Sir thermochemistry ka bhi video bnaie na...it was awsm..thanks
at 15:37, shouldn't it be chlorine instead of carbon?
Please provide video regarding backbonding in metal carbonyl
Sir add video on detail bonding in Cabonyl compounds too.. If it can be on ur schedule
i appreciate your hard work salam to your way of clearing concept
Shaandar Concept Junior.Proud on you. 👍
ChemGuru Publ
Thanks Sir 😊
Why there is need to form adduct with nh3 if it can complete its deficiency by back bonding
same question .
i think by forming aduct it stabilize more than back bonding..
i dont know ...just a random guess
Sir you are great😍😍
Sir please put the video of nomenclature in ORGANIC
Starting music kon sa hai?
Mujhe use ringtone set karna hai... 😅🙃
Sir back bonding ki theory NCERT k kis chapter m milegi . Pls tell sir . Maine dhundha par nhi mila mujhe
chemical bonding
Sir is there back bonding present in AlF3?
You explained so well👏👏👏
Nope it is ionic compound
That is what i want..best teacher in the world💞
Kaafi achhe se samjhaya aapne 👍😊
Sir in bcl3 chlorine will be having vacant 3 d orbital whereas in f there is no vacant d orbital so the relative tendency of back bonding will be more in bf3 as that in bcl3 is this a correct explanation
1st view and the video was awesome sir it cleared my all doubts..thnx
pranav parashar
Thanks
Stay connected with us for more videos.
Team
IITian explains
Why BF3 is stronger lewis acid than its lower gr member though it has back bonding
Sir CH4,SiH4,GeH4,SnH4,pbH4 innn sab molecules ke central atom ki electronegativity different hoti hai phir bhi inka bond angle same kaise hota hai apne to btaya tha ki bond angle central atom ki electronegativity ke directly proportional hota hai phir isme kyu nhi
Because agar geometry regular hai, as in tetrahedral and octahedral, every position is the same! Isliye in shapes me electronegativity factors ko nahi dekhte hai
Sir plz thermodynamics pr video banaiye and thank u very much sir for this video
Astha Thakur
You are welcome and stay connected with us.
Team
IITian explains
Thanx sir
Sir superb video..tysm iske lye🤘👍🙌💫🎉🔥💯🕺🥇
What is diff in back bonding and resonance ..........
Wah betey wah
Sir ek doubt hain :
BF3 react nahi kadegi NH3 ke sath coz iski strong backbonding hain aur isko Lewis base (NH3) nahi chahiye apne kaha at 29:00
But at 23:38 pe apne kaha hi BF3 NH3 ke saath react kar rahi hain..?????? Sir please explain 🙏🙏🙏
Aba thermodynamics paro
Jasa benzene ko high temp ma cyclohexane ma convert kar sakta ha wasa extreme reaction condition ma ya ammonia and boron trifloride bhi react kar sakta ha
plz make vedio on hw we calculate no. of bridging carbonyl in metal carbonyl complexes
Thank you sir , helped me clear my concepts :)
sir plzz explain d block imp topic... i like your lecture too much and your teaching with full energy
Sir can u please explai why there is weakest backbonding comparitively in ocl2 comparing with sif4
Sir BF3 KE CASE MEIN APNE 2p lie -2p pie hain lekin BCL3 MEIN 2p pie and 3p pie kyun hain??? Please explain
Gulshan Tayal 😊
Because, in BF3 2p take part in back bonding(Fluorine being second period element) while in BCl3 3p take part in back bonding.
(Chlorine being 3rd period element).
Thanks
Team IITian explains
Sir, my another question....why nitrogen do not form vacant d orbital
sir excellent explanation.At 23:26 you wrote NH3 BF3 complex wrong sir.The arrow should point from N to B
Yaa u r correct
In Al2Cl6 too the coordinate Bond is 3pπ-3pπ ...so why is it favourable but the back bonding is not?
Whi are this dislkers???
Sir u r great
Teaches very nicely
Sir kya sab reaction mechanism parle ya sirf product ratta nar le plz boldejea
Sir muze aap bass..itna bataiye kya aapke inorganic ke vedioes sufficient hai jisse 16/16inorganic ke questions neet me banege plz bataiye.....
Also sir how to decide when will back bonding bring about linear arrangement about central atom in complexes?
Thank you sir for this explaination .
Aap jaise teacher log self study ko boost up la dete ho sir
Bond order of bf3 ka 1 appne kaise likha??
Sir pls explain Relation bw back bonding and hybridisation
Thanks sir I understand this topic vey clearly sir u are so talented
NH3 ka bond angle 109.5 degree hota hi dir ..... sir udka pyramid shape hota hi na ?
Hello sir ....
As we know that +I effect of Deuterium (D) is more than Hydrogen (H)....
So whose +I will be more in these two compounds : In -CD3 or in -CH3????
+I will be more in case cd3
It really works sir..grt job..
sir if BC3 is possible can it have back bond or if it has will it be stronger than BF3
Sir please reply
Why PH3 shows back bonding?
Dark Lord
I think you should google it.
It has pure p orbital
Hydrogen dosen't have lone pairs which would donate electron
Thank you very much sir for helping me to understand this concept.
Sir no doubt you are one of best teachers in this platform. Two suggestions from my end
Do write the important points which you speak at corner of board
Please be little slow🙏🙏🙏🙏 while explaining.
I am just giving a suggestion
Thank you
why is 2pi-2pi overlap more stable than 3 pi-3pi overlap (3pi orbitals also have comparable energies and size)
What is the difference between back bonding and coordinate bonding?
Wow so energetic and so clear ...i m really shocked
#Backbone_Of_Chemistry...!!
😍
*Backbone* ding
bahut bahut bahut bdia video hai ............
Fabulous lecture hope you cover more topics in less time
Thanks
Stay connected with us for more videos.
Team
IITian explains.
Sir,aapne BF3 ki hybridization kese calculate kari?
description is like notes for us
Voh baki ke 9 topics kaunsa hai??
16:15 C stands for chlorine or carbon
sir plzz make a video on thermal stability of carbonates and bicarbonates and solubility of inorganic compound
awesome lecture
Crystal field theory please!!!!
Isomarism bhi!!!!!!!!!!!!!!!!!!!!!!!!!!!
Amazing sir
U r too good
My concept is clear wow
Sir plz upload more videos che as well phy
Guruji kya padhaya Maja hi aa gaya. Ekdam cleear.
sir please give me a trick to count number of p,pii-p,pii p,pii-d,pii bond very easly without making any structure
Sayan Ray
Our next video is coming from pπ -pπ and pπ-dπ bonding in details with some great tricks.
We hope, you will enjoy it.
Thanks
Team IITian explains
Molecular Orbital Theory. Please🙏🙏🙏🙏🙏🙏🙏
Really an iitian
Thanks sir
Please make a series of equilibrium
Italian
sir ur concepts are very much strong u helped me a lot in clearing my concepts thanx
Such high quality content for free. Salute you sir
Where did you get that chawlk from😅
it looks so smooth
@@tiredcat6653 and unique
sir konsa compound kese banta hai uspe video banao
Sir Metal carbonyl Ko bhi detail mein expalin krna, plz.. If u can ?
Rocking Star
Stay connected with us.
Team
IITian explains
👍
Best lacture on you tube......