catena-Poly­[lithium(I)-μ-1-tert-butyl-3-(3-pyridyl)-N,N′-bis­(tri­methyl­silyl)propane-1,3-diiminato]

The title compound, [Li(C₁₈H₃₂N₃Si₂)]_n, is a convenient ligand-transfer reagent for the synthesis of metal complexes of this β-diketiminate ligand. Lithium is coordinated by three N atoms: two are in the delocalized NCCCN fragment and one is from the pyridyl in an adjacent mol­ecule. Owing to the coordination of lithium by the pyridyl N atom, the crystal structure displays a one-dimensional polymeric structure.

9,9′-Bi-10H-anthracene-9,9′-diol

The title compound, C₂₈H₂₂O₂, is a inter­mediate in the synthesis of 10,10′-dibromo-9,9′-bianthracen­yl. The mol­ecule forms both intra- and inter­molecular O—H...O hydrogen bonds.

catena-Poly[[bis­(tetra­hydro­furan)lithium(I)]-μ-N-(2-isopropyl­phen­yl)benzamidinato]

The title compound, [Li(C₁₆H₁₇N₂)(C₄H₈O)₂]_n, is an unsymmetrical benzamidinate exhibiting a one-dimensional chain made up of lithium-linked N—C—N units. Two tetra­hydro­furan mol­ecules complete the distorted LiO₂N₂ tetra­hedral coordination.

Maleopimaric anhydride ethyl ester

The title compound, C₂₆H₃₆O₅, is a derivative of abietic acid formed by an endo-Diels-Alder reaction between maleic anhydride and the diene levopimaric acid ethyl ester. The two fused and unbridged cyclohexane rings have chair conformations and the anhydride ring is planar.