Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 18583-60-3, is researched, SMILESS is [BH-](N1N=CC=C1)(N2N=CC=C2)N3N=CC=C3.[K+], Molecular C9H10BKN6Journal, Organometallics called Ligand Effect on the Structures and Acidities of [TpOs(H2)(PPh3)2]BF4 and [CpOsH2(PR3)2]BF4, Author is Ng, Weng Sang; Jia, Guochen; Hung, Mei Yuen; Lau, Chak Po; Wong, Kwok Yin; Wen, Libai, the main research direction is acidity osmium ruthenium hydrido dihydrogen complex; electrochem oxidation osmium ruthenium hydrido dihydrogen; bond energy osmium ruthenium hydrido dihydrogen; osmium hydrido dihydrogen acidity electrochem; ruthenium hydrido dihydrogen acidity electrochem; hydrido osmium ruthenium acidity electrochem; dihydrogen osmium ruthenium acidity electrochem.Name: Potassiumtris(1-pyrazolyl)borohydride.
The new mol. dihydrogen complex [TpOs(H2)(PPh3)2]BF4 was prepared by protonation of TpOsH(PPh3)2 with HBF4. The pseudo-aqueous pKa values of [CpOsH2(PR3)2]BF4 ((PR3)2 = (PPh3)2, dppm, dppe, dppp) and [TpOs(H2)(PPh3)2]BF4 were determined in CH2Cl2. [TpOs(H2)(PPh3)2]BF4 is more acidic than trans-[CpOsH2(PPh3)2]BF4. While [TpOs(H2)(PPh3)2]BF4 is less acidic than [TpRu(H2)(PPh3)2]BF4 by 1.3 pKa units, trans-[CpOsH2(PPh3)2]BF4 is less acidic than trans-[CpRuH2(PPh3)2]BF4 by 5.1 pKa units. The oxidation potentials and hydrogen-metal bond dissociation energies of the complexes were also studied.
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Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics