21:58, Sir both silyl isothiocyanate and methyl isothiocyanate have S atom instead of O in the structure you drew. Otherwise why would we add "thio" in the name of the compound?
carbon has a fully filled p orbital and also it doesn't have a d orbital. so no back bonding is possible in Trimethylamine. you can get satisfied by this explanation if you draw the hybridized orbitals by yourselves then it would be much clear.
for those who are in a doubt sio2 do backbonding.. yes it forms covalently bonded network structure but at room temperature and also do back bonding in another states
Sir in SiO2 there shouldn't be any back bonding beacause it forms single coordinate bond with the O atom and thus has sp3 hybridisation and is present in a 3-D covalently bonded network like diamond.(As you told in the previous lectures.)
in the P4O10 molecule the lone pair is donated by the oxygen atom and received by the vacant d orbital of phosphorus. Therefore oxygen is Lewis base and phosphorus is Lewis acid. sir did the opposite.
wo sir ne back bond ko samjhane ke liye bataya hai ki backbond kucch khas nahi hai ek coordinate bond hai ab coordinate bond banane se pehele phosphorous pe lone pair tha toh wo pehle LB tha aur oxygen ke pass 6e the valence shell mai toh wo LA tha phir waha pe coordinate bond ban gya(jisko double bond se dikhaya jata hai 3rd period aur higher elements ke case mai )
sir but in silicyl ether, if back bond is formed, max it should go upto is 120 degree as trigonal planar structure will be there. How is it forming 165 degree sir?
Sir , Please tell whether p(pi)-d(pi) back bonding will occur in NCl3 or not ?? There are some books/ teachers which/who say that there is no back bonding in NCl3 due to no electronegativity difference between N and Cl ! Sir please clear the confusion. Regards.
to understand mechanism of backbonding in p4o10 higher knowledge is required p and o doesnt share electrons due to high energy difference in 3d and 2p orbitals
This video contains lots of misconceptions or wrong content delivered 1. Cynate and thiocyanate 2. Sio2 does not have any backbonding because it will destabilize it's crystal structure 3.
@@AnandSingh-yc4lf 3. In P4O10 Oxygen is giving electrons to phosphorus and not phosphorus to oxygen because oxygen being 2nd period element cannot expand its octet.
@@AbhayShukla_247Tell me if i am wrong the first sigma bond is formed when phosphorus donates a pair of electron to oxygen as a coordinate bond(note: oxygen's octet is now complete earlier it was not) Now oxygen gives a pair of electrons to phosphorus thus forming a 2p3p pi coordinate bond or simply a 2p3p backbond?????
