Fig. 2: Synthesis and molecular structures of dinuclear calcium fluorides. | Nature Chemistry

Fig. 2: Synthesis and molecular structures of dinuclear calcium fluorides.

From: Enabling nucleophilic reactivity in molecular calcium fluoride complexes

Fig. 2

a, Reaction of (DippNON)Ca(THF)2 (1-Dipp) with [NMe4]F in THF to generate [NMe4]2[{(DippNON)Ca(μ2-F)}2] (2) or with KF/2.2.2-crypt to yield [K(2.2.2-crypt)][{(DippNON) Ca(THF)}2(μ2-F)] (3) featuring Ca(μ2-F)2Ca and Ca(μ2-F)Ca cores, respectively. b,c, Molecular structures in the solid state of 2 (b) and 3 (c), respectively, as determined by X-ray crystallography. The thermal ellipsoids are set at the 30% level. Hydrogen atoms, second disorder components and solvate molecules are omitted, and selected fragments are shown in wireframe format for clarity. Structure 2 is displayed for connectivity purposes only. The selected bond lengths and angles for 3 are: Ca–F 2.182(1) and 2.187(1) Å and Ca–F–Ca 166.9(1)°.

Back to article page