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metal-organic compounds
Reaction of catechol with n-butyllithium in absolute n-hexane yields the corresponding monoanion, which crystallizes from N,N'-dimethylformamide/n-hexane solution as the title compound, [Li(C6H5O2)(C3H7NO)2]. The structure contains Li cations each coordinated by one catechol monoanion and two N,N'-dimethylformamide molecules with nearly tetrahedral coordination geometry. The anions are connected via very short OHO hydrogen bridges to form an infinite polymeric one-dimensional structure.