Structural and Spectral Analysis of a Mannich Base: 3-(Morpholin-4-ylmethyl)-1,3-Benzothiazole-2-Thione
作者:S. Franklin、D. Tamilvendan、G. Venkatesa Prabhu、T. Balasubramanian
DOI:10.1007/s10870-011-0199-z
日期:2012.1
The crystal structure of 3-(morpholin-4-ylmethyl)-1,3-benzothiazole-2-thione, C12H14N2OS2, crystallizes in the monoclinic space group (P21/c). This benzothiazole derivative is a mannich base. Methylene group bridges the molecules of 2-mercapto benzothiazole and morpholine with an angle at the methylene bridge being 110.31(12)° [N–C–N]. The dihedral angle between the benzothiazole and morpholine planes is 70.37(5)°. The morpholine ring adopts a chair conformation. The molecular structure is stabilized by the weak C–H···S hydrogen bond in addition to the C–H···π and π···π interactions. Present study reports the conformation and hydrogen bonding interactions. Spectral analysis complement the structure analyzed. The compound 3-(morpholin-4-ylmethyl)-1,3-benzothiazole-2-thione is a Mannich base. The crystal structure gives a picture of a methylene group bridging the molecules of 2-mercapto benzothiazole and morpholine.
3-(吗啉-4-基甲基)-1,3-苯并噻唑-2-硫酮(C12H14N2OS2)在单斜空间群(P21/c)中的晶体结构。这种苯并噻唑衍生物是一种甘露碱。亚甲基将 2-巯基苯并噻唑和吗啉分子连接起来,亚甲基桥的角度为 110.31(12)° [N-C-N]。苯并噻唑和吗啉平面之间的二面角为 70.37(5)°。吗啉环呈椅状构象。除了 C-H---π 和 π---π 相互作用外,分子结构还通过微弱的 C-H-S 氢键得到稳定。本研究报告了构象和氢键相互作用。光谱分析补充了所分析的结构。3-(吗啉-4-基甲基)-1,3-苯并噻唑-2-硫酮化合物是一种曼尼希碱。晶体结构显示,2-巯基苯并噻唑分子和吗啉分子之间有一个亚甲基桥接。