Crystal and molecular structure of two new Schiff bases: Paeonol-ethylenediamine and paeonol-1,3-propylenediamine |
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| Authors: | T.-T. Xu X.-Y. Xu J. Gao Sh.-Sh. Ni D.-Q. Wang L.-D. Lu X.-J. Yang X. Wang |
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| Affiliation: | (1) Nanjing University of Science and Technology, Nanjing, 210094, P.R. China;(2) Huaihai Institute of Technology, Lianyungang, 222005, P.R. China;(3) Lianyungang Technical College, Lianyungang, 222006, P.R. China;(4) College of Chemistry and Chemical Engineering, Liaocheng University, Shandong, 252059, P.R. China |
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| Abstract: | 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) Å, b = 6.767(10) Å, c = 12.494(18) Å; β = 104.66(2)°, V = 896(2) Å3, Z = 2. Compound 2 is triclinic, space group P-1, a = 6.878(2) Å, b = 12.141(4) Å, c = 12.414(4) Å; α = 101.023(6)°, β = 103.415(6)°, γ = 102.337(6)°, V = 952.8(6) Å3, 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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| Keywords: | Molecular crystals crystal structure amine 2-hydroxy-4-methoxyacetophenone |
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