Electric Literature of C9H10BKN6. The protonation of heteroatoms in aromatic heterocycles can be divided into two categories: lone pairs of electrons are in the aromatic ring conjugated system; and lone pairs of electrons do not participate. Compound: Potassiumtris(1-pyrazolyl)borohydride, is researched, Molecular C9H10BKN6, CAS is 18583-60-3, about A Moessbauer study of some iron(II) and iron(III) poly(pyrazolyl)borates. The x-ray crystal structures of iron(II) bis[hydridotris(3-methyl-1H-pyrazol-1-yl)borate] and iron(III) bis[hydridotris(1H-pyrazol-1-yl)borate] tetrafluoroborate. Author is Calogero, S.; Lobbia, G. Gioia; Cecchi, P.; Valle, G.; Friedl, J..
FeL2 or [FeL2]X (X = BF4 or BPh4) with L = BHR3 (R = 1H-pyrazol-1-yl) (L0), BR4 (L0′), BHR13 (R1 = 3-methyl-1H-pyrazol-1-yl) (L1), BHR23 (R2 = 3,5-dimethyl-1H-pyrazol-1-yl) (L2), BHR33 (R3 = 4-chloro-3,5-dimethyl-1H-pyrazol-1-yl) (L2Cl), BHR43 = (R4 = 3,4,5-trimethyl-1H-pyrazol-1-yl) (L3), BHR53 (R5 = 1,2,4-1H-triazol-1-yl) (Ltz) and BHR63 (R6 = 3a,7a-benzo-1,2,3-1H-triazol-1-yl) (Lbtz) was prepared The series was characterized mainly by the 57Fe Moessbauer effect. The x-ray crystal structures of Fe[BHR13]2 (3) and Fe[BHR3]2BF4 (9) were resolved. Discrete units with octahedral FeIIN6 or FeIII sites are present in each. The Fe-N bond length ranges from 2.197(4) to 2.215(4) Å in 3 and from 1.948(6) to 1.964(6) Å in 9. The bond angle ranges from 86.4(2)° to 93.7(2)° in 3 and from 88.3(4)° to 90.9(5)° in 9.
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