Ovcharenko, Victor; Fursova, Elena; Romanenko, Galina; Eremenko, Igor; Tretyakov, Evgeny; Ikorskii, Vladimir published an article in Inorganic Chemistry. The title of the article was 《Synthesis, Structure, and Magnetic Properties of (6-9)-Nuclear Ni(II) Trimethylacetates and Their Heterospin Complexes with Nitroxides》.Safety of 1-Butyl-1H-pyrazole The author mentioned the following in the article:
New polynuclear nickel trimethylacetates [Ni6(OH)4(C5H9O2)8(C5H10O2)4] (6), [Ni7(OH)7(C5H9O2)7(C5H10O2)6(H2O)]·0.5C6H14·0.5H2O (7), [Ni8(OH)4(H2O)2(C5H9O2)12] (8), and [Ni9(OH)6(C5H9O2)12(C5H10O2)4]·C5H10O2·3H2O (9), where C5H9O2 is trimethylacetate and C5H10O2 is trimethylacetic acid, were found. Their structures were determined by x-ray crystallog. Because of their high solubility in low-polarity organic solvents, compounds 6-9 reacted with stable organic radicals to form the first heterospin compounds based on polynuclear Ni(II) trimethylacetate and nitronyl nitroxides containing pyrazole (L1-L3), Me (L4), or imidazole (L5) substituent groups, resp., in side chains [Ni7(OH)5(C5H9O2)9(C5H10O2)2(L1)2(H2O)]·0.5C6H14·H2O (6+1a), [Ni7(OH)5(C5H9O2)9(C5H10O2)2(L2)2(H2O)]·H2O (6+1b), [Ni7(OH)5(C5H9O2)9(C5H10O2)2(L3)2(H2O)]·H2O (6+1c), [Ni6(OH)3(C5H9O2)9(C5H10O2)4(L4)]·1.5C6H14 (6”), and [Ni4(OH)3(C5H9O2)5(C5H10O2)4(L5)]·1.5C7H8 (4). Their structures were also determined by x-ray crystallog. Although Ni(II) trimethylacetates may have varying nuclearity and can change their nuclearity during recrystallization or interactions with nitroxides, this family of compounds is easy to study because of its topol. relation. For any of these complexes, the polynuclear framework may be derived from the [Ni6] polynuclear fragment {Ni6(μ4-OH)2(μ3-OH)2(μ2-C5H9O2-O,O’)6(μ2-C5H9O2-O,O)(μ4-C5H9O2-O,O,O’,O’)(C5H10O2)4}, which is shaped like an open book. From this fragment, the structure of 7-nuclear compounds (7 and 6+1a-c) is conveniently represented as the result of sym. addition of other mononuclear fragments to the four Ni(II) ions lying at the vertexes of the [Ni6] open book. The 9-nuclear complex is formed by the addition of trinuclear fragments to two Ni(II) ions lying on one of the lateral edges of the [Ni6] open book. This wing of the 9-nuclear complex preserves its structure in another type of 6-nuclear complex (6”) with the boat configuration. If, however, two edge-sharing Ni(II) ions are removed from [Ni6] (one of these lies at a vertex of the open book and the other, on the book-cover line), one obtains a 4-nuclear fragment recorded in the mol. structure of 4. Twinning of this 4-nuclear fragment forms highly sym. mol. 8, which is a new chem. version of cubane. In the part of experimental materials, we found many familiar compounds, such as 1-Butyl-1H-pyrazole(cas: 52096-24-9Safety of 1-Butyl-1H-pyrazole)
1-Butyl-1H-pyrazole(cas: 52096-24-9) belongs to pyrazoles. Pyrazoles and their related multiring analogs are common elements of a wide variety of bioactive compounds. These ring structures are rare in nature. A consequence of this is that they have previously been thought to be poor moieties to include in potential new drugs. Safety of 1-Butyl-1H-pyrazole
Referemce:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics