[Python] Pair all elements leaving alternate element in a list and form a new list of lists

I have a list which I would like to have unique element pairs generated for every alternate element

List = [ L1, L2, L3, L4, L5, L6, L7,L8 ]

List_in_pairs = [[L1,L3], [L2,L4], [L5,L7],[L6,L8]]


I tried

list_in_pairs = list(zip(List[::1], List[2::1]))


but that doesn't seem to generate pairs as above fashion. Any insights?

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