کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1407917 | 1501901 | 2007 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Preferred hydrogen bonding site of 1,3,6,8-tetraazatricyclo[4.3.1.13,8]undecane (TATU) to hydroquinone
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The structure of 1,3,6,8-tetraazatricyclo[4.3.1.13,8]undecane (TATU) (2), recently deduced from NMR measurements, is confirmed by single crystal X-ray diffraction of its adduct with hydroquinone. The crystals are orthorhombic, space group Pnma, with a = 7.585(1) Ã
, b = 16.065(3) Ã
, c = 10.837(2) Ã
, VÂ =Â 1320.5(4)Â Ã
3, Z = 4, F(0 0 0) = 568, R1 = 3.93%, wR2 = 8.09%. One hydroquinone molecule is linked to one TATU molecule through O-Hâ¯N hydrogen bonding, and the crystal structure, similar to other hydroquinone:adamanzanes adducts, is based on a packing determined mainly by hydrogen bonds. Additionally, significant differences in binding affinities between the two types of nitrogen atoms of TATU were estimated.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Structure - Volume 837, Issues 1â3, 30 June 2007, Pages 142-146
Journal: Journal of Molecular Structure - Volume 837, Issues 1â3, 30 June 2007, Pages 142-146
نویسندگان
Augusto Rivera, Diego González-Salas, Jaime RÃos-Motta, Angelina Hernández-Barragán, Pedro Joseph-Nathan,