Why sf4 is Lewis acid isn't it Lewis base as it have two electron in its lone pair??? please answer
Answers
SF4 has a lone pair on the S: Lewis base.
Cu2+ accepts electron pairs in order to make complexes: Lewis acid.
Answer:
SF₄ can act as both Lewis Acid as well as Lewis Base. In the presence of a really strong Lewis Acid, SF₄ acts as a weak Lewis base and in the presence of a really strong Lewis base, it acts as a weak Lewis Acid.
Explanation:
SF₄ or Sulphur tetrafluoride, is generally a colorless gas with a very distinct and noticeable sulphur odour. It is really toxic as well as a terrible irritant to the skin, that too is strong, eyes as well as mucous membranes.
It can act as both Lewis Acid as well as Lewis base depending upon it's environment or we can say surroundings.
It acts as a Lewis acid because of having vacant or empty d-orbitals in it. This allow acceptance of electrons, making it acidic.
It acts as a Lewis base because of having one lone pair of electrons. This allows giving of electrons to other compounds, making it a Lewis Base.