کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1404327 984905 2008 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Layering in cinnamate structures: The role of cations and anion substituents
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Layering in cinnamate structures: The role of cations and anion substituents
چکیده انگلیسی

Four materials have been used to investigate the effect of the cation and ring substituent on crystal packing. In potassium 3-bromo-trans-cinnamate (1), potassium 3-chloro-trans-cinnamate (2) and sodium 3-chloro-trans-cinnamate (3), the cations are accommodated in continuous two-dimensional layers formed by the interaction between cations and anions. The CC double bonds in 1 and 2 are parallel with optimal geometry for photochemical reaction, whereas 3 is disordered. The identity of the halogen substituent influences the structure through halogen-halogen contacts. In the structure of calcium di-trans-cinnamate (4), calcium-anion coordination leads to the formation of ribbons rather than two-dimensional layers.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Structure - Volume 872, Issue 1, 15 January 2008, Pages 64–71
نویسندگان
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