The structural characterization of some t-butanol solvates of some lithium halides, of LiX:BuOH(1:4,6) ratio

The single crystal structural characterization of an array of t-butanol solvates of the lithium halides LiX, X = Cl, Br, I is recorded. Two series have been identified, of LiX : (BuOH)-Bu-t ratio 1:4 and 1:6, represented by the formulations [Li((HOBu)-Bu-t)(4)]X (X = Cl, I; not isomorphous) and [Li((HOBu)-Bu-t)(4)]X(.)2(t)BuOH (all X = Cl, Br, I, also BH4); isomorphous, triclinic P1, a similar to 10.3, b similar to 13, c similar to 14.4 angstrom, alpha similar to 73, 0 similar to 70, gamma similar to 68 degrees, Z = 2. Li-O are 1.97 angstrom, in an environment of quasi-42m symmetry, the pair of O-Li-O angles trans to each other which contain the hydroxyl hydrogen atoms being reduced to (range) 92.9(2)-98.2(3)degrees. Interactions between these hydroxylic hydrogen atoms with the anions link the cations and anions alternately into chains in the 1:4 adducts; in the 1:6 adducts these chains are extended by interposed solvent molecules by way of hydrogen-bonding interactions.