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首页> 外文期刊>Journal of chemical crystallography >Hydrogen Bonding Patterns and DFT Studies of (4- Acetylphenyl)amino 2,2-Dimethylpropanoate and (E)-1-(4- Aminophenyl)-3-4-(dimethylamino)phenylprop-2-en-1-one
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Hydrogen Bonding Patterns and DFT Studies of (4- Acetylphenyl)amino 2,2-Dimethylpropanoate and (E)-1-(4- Aminophenyl)-3-4-(dimethylamino)phenylprop-2-en-1-one

机译:(4-乙酰基苯基)氨基2,2-二甲基丙酸酯和(E)-1-(4-氨基苯基)-3-4-(二甲基氨基)苯基丙-2-烯-1-酮的氢键模式和DFT研究

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摘要

The (4-acetylphenyl)amino 2,2-dimethylpropanoate (1) and (E)-1-(4-aminophenyl)-3-4-(dimethylamino) phenylprop-2-en-1-one (2), were synthesized and characterized by elemental analysis, FT-IR, ~1HNMR, ~(13)CNMR and single crystalX-ray diffraction techniques.Both compounds 1 and 2 crystallized in orthorhombic crystal system with Pbca and P212121 space group respectively, having the unit cell parameters: a = 11.7220(12) ?, b = 14.4580(13) ?, c = 15.7853(12) ?, b = 90o,Volume = 2675.2(4) ?~3, Z = 8 for 1 and a = 6.1146(5) ?, b = 9.0567(8) ?, c = 26.079(3) ?, b = 90o, Volume = 1444.2(2) ?~3, Z = 4 for compound 2. The crystal structures of both compounds (1 and 2) are stabilized by N-H???O strong intermolecular hydrogen bonding forming C~1~1 (8)motifs. In compound 1, the molecules are linked by three C-H???O intramolecular H-bond forming S(6) motifs. In compound 2, the molecules are linked by C-H???N intermolecular H-bond exhibiting C_1~1 (12) motif and C-H???O intramolecular H-bond leading to S(5) motif. Crystallographic and vibrational data are comparedwith the results of density functional theory (DFT) method at the B3LYP/6- 31G(d,p) level. The electronic (UV-vis) spectra was calculated by using the TD-DFT method and correlated with experimental spectra.
机译:通过元素分析、傅里叶变换红外光谱(FT-IR)、~1HNMR、~(13)CNMR和单晶X射线衍射技术合成了(4-乙酰基苯基)氨基2,2-二甲基丙酸酯(1)和(E)-1-(4-氨基苯基)-3-[4-(二甲基氨基)苯基]丙基]丙烯-2-烯-1-酮(2)和(E)-1-(4-氨基苯基)-3-[4-(二甲基氨基)苯基]丙基]丙-2-烯-1-酮(2)和(E)-1-(4-(二甲基氨基)苯基]丙烯-2-烯-1-酮(2)-2-(2-二甲基氨基)-2-(2-二甲基氨基)-2-(2-二甲基氨基)-2-2-2-2-2-2-2-2-2-2-2-2-1-1-4-2-2-2-2-2-1-1-4-2-2-2-2-1-2-1-4-(4-2-2-2-2-2-2-2-1-2-1-2-1-2-1-2-1-2-2化合物 1 和 2 分别在斜方晶体系中结晶,分别具有 Pbca 和 P212121 空间群,晶胞参数为:a = 11.7220(12) ?, b = 14.4580(13) ?, c = 15.7853(12) ?, b = 90o,体积 = 2675.2(4) ?~3, Z = 8 for 1 和 a = 6.1146(5) ?, b = 9.0567(8) ?, c = 26.079(3) ?, b = 90o, 体积 = 1444.2(2) ?~3, 化合物 2 的 Z = 4。两种化合物(1 和 2)的晶体结构都由 NH 稳定???O.强分子间氢键形成C~1~1(8)基序。在化合物 1 中,分子通过三个 CH 连接???O 分子内氢键形成 S(6) 基序。在化合物 2 中,分子通过 C-H 连接???N个分子间氢键表现出C_1~1(12)基序和C-H???O 分子内氢键导致 S(5) 基序。将晶体学和振动数据与密度泛函理论(DFT)方法在B3LYP/6-31G(d,p)水平上的结果进行了比较。采用TD-DFT方法计算电子(紫外-可见)光谱,并与实验光谱相关联。

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