Crystal structure of lithium diisopropylamide (LDA): an infinite helical arrangement composed of near-linear nitrogen-lithium-nitrogen units with four units per turn of helix

Although the number of crystal structure reports of organic lithium derivatives has mushroomed over the past decade or so, a report of the most important lithium reagent, indeed, one of the most utilized reagents throughout organic synthesis, lithium diisopropylamide (LDA), has been conspicuously absent.