Crystal and molecular structure of two new Schiff bases: paeonol — ethylenediamine and paeonol — 1,3-propylenediamine
Ключевые слова: Molecular crystals, crystal structure, amine, 2-hydroxy-4-methoxyacetophenone
Страницы: 189-193 Подраздел: КРАТКИЕ СООБЩЕНИЯ
Аннотация
Two new Schiff bases were prepared by the condensation reaction of paeonol with ethylenediamine (for compound 1) and 1,3-propylenediamine (for compound 2). The compounds were studied with single crystal X-ray diffraction method. Compound 1 is monoclinic, space group P21/c, a = 10.956(15), b = 6.767(10), c = 12.494(18) Å; b = 104.66(2)°, V = 896(2) Å 3, Z = 2. Compound 2 is triclinic, space group P-1, a = 6.878(2), b = 12.141(4), c = 12.414(4) Å ;a = 101.023(6)°, b = 103.415(6)°, γ = 102.337(6)°, V = 952.8(6) Å 3, Z = 2. The molecular structures of 1 and 2 are similar; the molecule being centrosymmetric in 1 but asymmetric in 2.
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