13 Replies
@Dexter
Note for OP
+solved @user1 @user2... to close the thread when your doubt is solved. Mention the users who helped you solve the doubt. This will be added to their stats.Im able to judge bw BX3 by back bonding strength
anyone?:uhh:
Boron me 2p orbital se back bonding hota hai
Aluminium se 3p se
To boron is more wanting towards electron
And vaise bhi boron ki electronegativity jyda hai
Hence loves electrons
lewis acid strength goes like BI3 > BBr3 > BCl3 > BF3
now this is because of p pi p pi back bonding between p orbital of B and of the halogen. BI3 has worst back bonding because of the large P orbital
thus the most acidic nature ( more probable to accept electrons )
now wouldnt Al and B follow the same logic
Al has 3p whereas as B has 2p
3p is bigger than 2p
Back bonding depends on size factor no? Bada size= less bb?
yes exactly
Bb zyda to ganda lewis acid because usme deficiency utna nhi hai electron ka right?
sorry ?
Back bonding jisme strong hoga wo weak lewis acid right?
yeah
thats what i said
BI3 mein weak back bonding hai cuz boron ke p orbital and I ke p orbital mei bohot bada size diff hai
similarly
ohh shit
Cl and Al ka p toh same size hai
and B ka chota hai
yeah makes more sense