Abstract

The crystal structure of lithium l-ascorbate dihydrate is triclinic, P1; with a = 5.964(9), b = 5.299(9), c = 7.760(15)Å; α = 100.82(9), β = 109.78(9), γ = 92.02(9)°. The planar fragment of the ascorbate anion is a part of the five-membered ring [C-1,C-2,C-3(O-3),C-4], and O-4 deviates by 0.053(2) Å from this plane. Deprotonated O-3 is an acceptor of three hydrogen bonds, but does not interact with Li+. The coordination number of the Li+ is 5 and it is bonded to two water molecules and three hydroxyl oxygen atoms of two ascorbate anions: O-2 and the gauche O-5,6 of the side chain.

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