کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1408073 1501904 2007 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
C-H⋯X hydrogen-bond-mediated supramolecular frameworks: Syntheses and crystal structures of hydrochlorate hexafluorophosphorate and hydrochlorate tetrafluoroborate of 4′-chloro-2,2′:6′,2″-terpyridine
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
C-H⋯X hydrogen-bond-mediated supramolecular frameworks: Syntheses and crystal structures of hydrochlorate hexafluorophosphorate and hydrochlorate tetrafluoroborate of 4′-chloro-2,2′:6′,2″-terpyridine
چکیده انگلیسی
C-H⋯F and C-H⋯Cl hydrogen bonding interactions play essential roles in forming different supramolecular networks of 4′-chloro-2,2′:6′,2″-terpyridine hydrochlorate hexafluorophosphorate (1) and 4′-chloro-2,2′:6′,2″-terpyridine hydrochlorate tetrafluoroborate (2) in the solid state, where different crystallographic symmetry, molecular structures and packing patterns have been achieved. The former crystallizes in the triclinic P − 1 space group and the terpyridine system is staggered with the dihedral angles of 11.8°, 4.1° and 22.5°, 3.3° between the central ring and the other ones (two sets of molecules in the asymmetric unit). In contrast, the latter packs into the orthorhombic Pnma space group in which only planar molecules and layer stacking are present. This is a remarkable example on how subtle differences in the molecular formulae give a large difference in supramolecular packing.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Structure - Volume 832, Issues 1–3, 30 April 2007, Pages 108-116
نویسندگان
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