Boron atom in BF3 is sp2 hybridized. But while the formation of BF4¯ ion by the formation of co-ordinate....

Question

..covalent bond between B-atom and F¯ ion,B atom in BF4¯becomes sp3 hybridized.But this change in state of hybridization of central atom does not take place in case of formation of NH4+ and H3O+ from NH3 and H2O resp. In NH3 and H2O,N-atom and O-atom are sp3 hybridized and the single lone pair in case of the former and the two lone pairs in case of the latter are placed in the sp3 hybrid orbitals which are not involved in the bond formation.On the overlap of such orbital,containing lone pair electrons,in NH3 and one of the two such in H2O,by the empty 1s orbital of H+,NH4+ and H3O+ are formed resp. But in both NH4+ and H3O+,the state of hybridization of N and O remains sp3.So how can I show the formation of BF4¯(ie how to show a vacant 2p orbital of B,perpendicular to the plane of three sp2 hybrid orbitals in BF3,turning to a sp3 hybrid one in BF4¯.). So please explain the change of hybridized state in formation of BF4¯ from BF3..Also suggest a site showing the orbital overlap diagram.

Answer 1

The spare orbitals of NH3 and H2O can accommodate the incoming proton and achieve a relatively low energy state. BF3 cannot without undergoing a change in hybridisation.

Answer 2

hi. i like to envision the cloud formation and in case you look and stared after a at a similar time as you will possibly see different variety hidden under the clouds, my daughter,my husband and my self we stared on the cloud so in lots of circumstances one cloudy evening all of us observed formation of angels 2 small angels and a colossal one unfolded in the sky, as quickly as we better the photos, besides the fact that it became raining we observed a great arch that made a protracted line and on the top of the line we observed an exquisite rainbow. We nonetheless look into the cloud and each now and then we can glazed some issues beautiful in the sky some circumstances we are no longer conscious of the variety, yet all of us comprehend that we are residing in a great international. advantageous tale i theory you simply by fact we did observed some incredible cloud-formation.