The hydrotris(triazolyl)borate ligand, [BH(trz)3]- (trz=1,2,4-trizolate), can be used to assemble both molecular coordination compounds and extended 2- and 3-dimensional hybrid frameworks. Substitutions on the triazole ring increase the steric bulk and may affect coordination by this ligand. The hydrotris(3,5-dimethyl-1,2,4-triazolyl)borate ligand, [BH(dmtrz)3]- (dmtrz-=3,5-dimethyl-1,2,4-trizolate), was assembled to determine similarities in its coordination chemistry to [BH(trz)3]-. Two new isostructural coordination complexes, "M[BH(dmtrz)3]2" (M = Co, Ni), have been synthesized. Efforts are ongoing to synthesize iron(II) and zinc analogs of these materials. New and crystalline materials are produced when monovalent alkali metal cations are used (A = Li, Na, K). Different materials crystallize with the different alkali metal cations. Solvent affects the material crystallized from the potassium-containing system. Progress on the synthesis and characterization by single crystal X-ray diffraction, powder X-ray diffraction, thermal analysis and evolved gas analysis of "M[BH(dmtrz)3]2" and "A[BH(dmtrz)3]" will be presented. Differences between these materials and compounds containing the unsubstituted borate will be discussed.

Coordination compounds and hybrid materials containing the hydrtris(3,5-dimethyl-1,2,4-triazolyl)borate ligand

253rd National Meeting (2017)

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