第 45 卷第 2 期 |  | Vol. 45 No. 2 | 2015 年 4 月 | Apr 2015 |
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所屬欄目:醫藥及中間體
1-(2,3-環(huán)氧丙基)-2-甲基-5-硝基咪唑的晶體結構及參數計算 |
石 強,秦明娜,唐 望,王子俊,呂英迪,蘇鵬飛,邱少君*
(西安近代化學(xué)研究所,陜西 西安 710065) |
摘 要:采用相轉移催化法,制得了1-(2,3-環(huán)氧丙基)-2-甲基-5-硝基咪唑(1),并使用單晶X-射線(xiàn)衍射法測定1 的晶體結構,結果表明,1 屬于三斜晶系,P-1空間群,晶胞參數a=6.570(5)?魡,b=7.536(5)?魡,c=9.050(6)?魡,V=423.5(5)?魡3,Z=2,晶體密度為1.436 g/cm3,最終偏離因子R1=0.045 6,ωR2=0.132 4。采用密度泛函理論的B3LYP方法,在6-31G**基組水平上對1 進(jìn)行了結構優(yōu)化,計算得到1 的理論密度為1.465 g/cm3,固相生成焓為-123.76 kJ/mol。 |
關(guān)鍵詞:1-(2,3-環(huán)氧丙基)-2-甲基-5-硝基咪唑;晶體結構;計算 |
中圖分類(lèi)號:TQ 252.3 文獻標識碼:A 文章編號:1009-9212(2015)02-0053-03 |
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Parameter Calculation and Crystal Structure of 1-(2,3-Epoxypropyl)-2-methyl-5-nitroimidazole |
SHI Qiang, QIN Ming-na, TANG Wang, WANG Zi-jun, L?譈 Ying-di, SU Peng-fei, QIU Shao-jun*
(Xi′an Modern Chemistry Research Institute, Xi′an 710065, China) |
Abstract:1-(2,3-Epoxypropyl)-2-methyl-5-nitroimidazole(1)was synthesized by phase transfer catalysis. The structure of 1 was characterized using single-crystal X-ray diffraction. 1 belongs to the triclinic system, space group P-1 with a=6.570(5) ?魡, b=7.536(5) ?魡, c=9.050(6) ?魡, V=423.5(5) ?魡3, Z=2, Dc=1. 436 g/cm3 and final R1= 0.0456, ωR2=0.132 4. On the basis of the stable geometry optimized at B3LYP/6-31G** theoretical level, theoretical density(ρ)and solid state phase heat of formation(ΔfH°solid)of 1 were calculated. The results showed that the ρ and ΔfH° solid of 1 were 1. 465 g/cm3 and -123. 76 kJ/mol, respectively. |
Key words:1-(2,3-epoxypropyl)-2- methyl-5-nitroimidazole; crystal structure; calculation |
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作者簡(jiǎn)介:石 強(1967-),男,廣東番禺人,高級工程師,碩士,研究方向:有機合成(E-mail:shiqiangxa@sohu.com)。
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聯(lián) 系 人:邱少君,研究員,研究方向:有機合成(E-mail:qiu_shaojun@163.com)。
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收稿日期:2014-06-19
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