"Water decomposed into its primitive elements ( Hydrogen and Oxygen), and decomposed doubtless by electricity, which will then have become a powerful and manageable force. Yes, my friends, I believe that water will one day be employed as a fuel".

Jules Verne, book The Mysterious Island (1874)

Today:

Chris Eckman of Idaho State University presents an overview of his theory of how Brown's gas is electrical in nature. This precocious undergrad proposes a new isomer of water, something that would probably land a Nobel prize.

You can read here more about "browns gas, what is it?"

In the Browns Gas water plasma model, the water molecule goes from the tetrahedral and bent (4 electron pairs, 2 being used and 2 not being used) to the trigonal bipyramidal (5 electron pairs, 2 being used and 3 not being used), this causes the shape change.