کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9770205 | 1501942 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Transformations of the molecular complex of hydroiodide of 7-methyl-1,5,7-triazabicyclo[4.4.0]dec-5-ene and 5,5â²-dibromo-2,2â²-biphenol between crystal and solutions
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A complex of 5,5â²-dibromo-2,2â²-biphenol with 7-methyl-1,5,7-triazabicyclo[4.4.0]dec-5-ene hydroiodide has been studied by X-ray diffraction, FT-IR, and 1HNMR spectroscopy. In the crystal structure, the iodide anion is hydrogen-bonded to the MTBDH+ cation and to two hydroxyl groups of two 5,5â²-dibromo-2,2â²-biphenol molecules. In chloroform and acetonitrile the structure of the complex assumes a new structure due to almost complete dissociation of the protonated MTBD molecule. In chloroform the MTBDH+ cation is hydrogen bonded to 5,5â²-dibromo-2,2â²-biphenol whereas in acetonitrile it is free and solvated by the solvent. In both cases the 5,5â²-dibromo-2,2â²-biphenol molecule is hydrogen bonded to the iodide anion. In chloroform the iodide ion interacts strongly with the solvent.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Structure - Volume 741, Issues 1â3, 2 May 2005, Pages 37-43
Journal: Journal of Molecular Structure - Volume 741, Issues 1â3, 2 May 2005, Pages 37-43
نویسندگان
Grzegorz Wojciechowski, MaÅgorzata Ratajczak-Sitarz, Andrzej Katrusiak, Bogumil Brzezinski,