Crystal structure and Hirshfeld surface analysis of 2-picolyllithium·3thf

Abstract

In the title compound, (2-methylidene-1,2-dihydropyridinium-κN)tris(tetrahydrofuran-κO)lithium, [Li(C6H6N)(C4H8O)3], the lithium ion adopts a distorted LiNO3 tetrahedral coordination geometry and the 2-picolyl anion adopts its enamido form with the lithium ion lying close to the plane of the pyridine ring. A methylene group of one of the thf ligands is disordered over two orientations. In the crystal, a weak C—H...O interaction generates inversion dimers. A Hirshfeld surface analysis shows that H...H contacts dominate the packing (86%) followed by O...H/H...O and C...H/H...C contacts, which contribute 3% and 10.4%, respectively.

Keywords

• crystal structure
• 2-picolyllithium
• 2-methylpyridyllithium
• hirshfeld surface analysis