ompetition between whether the nitrogen atom or the oxygen atom can form the more favorable (stronger) Lewis acid-base

[nancy9494]

Hello!

I have to find whether the N or the O are better at giving electrons to react in a lewis acid base. I think that since O is more electronegative it will not do a good job at giving up electrons because it wants more to fill its octet while N is less electronegative it will be better at giving its electrons to B in the BH3 molecule. Is there more to this? or would the N bond better to the BH3 than O in all for molecules?

Thank you in advance for your help!