title: Bis(μ-dimesitylborinato-κO:O)bis-[(2-methyl-pyridine-κN)lithium].
abstract: The title compound, [Li(2)(C(18)H(22)BO)(2)(C(6)H(7)N)(2)], is a lithium dimesitylboroxide dimer in which the lithium cation is also coordinated by one mol-ecule of 2-methyl-pyridine. At the core of the structure is an Li(2)O(2) four-membered ring. The structure is centrosymmetric with an inversion centre midway between two Li atoms. Inter-molecular C-H⋯π inter-actions and π-π inter-actions between the 2-methyl-pyridine rings exist [centroid-centroid distance = 3.6312 (16) Å].
authors.affiliation: Department of Chemistry, The University of South Dakota, 414 E. Clark St, Vermillion, SD 57069, USA.
authors.forename: K T Pillai
authors.initials: KT
authors.lastname: Saravana
authors.forename: Jung-Ho
authors.initials: JH
authors.lastname: Son
authors.forename: James D
authors.initials: JD
authors.lastname: Hoefelmeyer