Electric Literature of C9H10BKN6. Aromatic heterocyclic compounds can also be classified according to the number of heteroatoms contained in the heterocycle: single heteroatom, two heteroatoms, three heteroatoms and four heteroatoms. Compound: Potassiumtris(1-pyrazolyl)borohydride, is researched, Molecular C9H10BKN6, CAS is 18583-60-3, about Synthesis, properties and structural characterization of [SmCl(BHpz3)2(Hpz)] (pz = 1-pyrazolyl group). Author is Onishi, Masayoshi; Itoh, Kei; Hiraki, Katsuma.
In THF at -78°, potassium tris(1-pyrazolyl)hydroborate K[BHpz3] (pz = 1-pyrazolyl group) reacted with SmCl3.6H2O in a 1:1 molar ratio, and CH2Cl2 extraction of the reaction mixture yielded the white powder, [SmCl(BHpz3)2(Hpz)] (1), in 60.4% yield. The 1H-NMR spectrum of 1 showed only one signal set of pyrazolyl groups for two BHpz3 ligands. Colorless prismatic crystals of 1 were obtained and single crystal x-ray structural determination was undertaken. An eight-coordinated monomeric structure was confirmed for 1, and square-antiprismatic geometry around Sm was revealed. The structural determination indicated H bonding of the acidic proton on the 1-N nitrogen of the coordinated Hpz mol., with the Cl atom on Sm.
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