کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1331865 979020 2006 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Azine bridged silver coordination polymers: Powder X-ray diffraction route to crystal structure determination of silver benzotriazole
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی معدنی
پیش نمایش صفحه اول مقاله
Azine bridged silver coordination polymers: Powder X-ray diffraction route to crystal structure determination of silver benzotriazole
چکیده انگلیسی

In continuation of our interest in solid-state structures of silver complexes of photographic importance, the structure for silver benzotriazole (AgBZT), has now been obtained. The preferred method for solving crystal structures is via single-crystal X-ray diffraction (XRD). However, for some materials, growing single crystals of appropriate size and quality is often difficult or even impossible. AgBZT is an example of such a silver complex with poor solubility. The usual routes to preparing single crystals using recrystallization from a cooperating solvent resulted in polycrystalline powder samples. We propose a crystal structure for AgBZT, solved from synchrotron X-ray powder diffraction data, using a direct-space Monte Carlo simulated annealing approach. AgBZT crystals are monoclinic, (P21/c), with unit cell dimensions, a=14.8052(3) Å, b=3.7498(4) Å, c=12.3495(12) Å, and β=114.200(6)°. The AgBZT complex is constructed from all three of the Benzotriazole (BZT) nitrogens bonding to a separate silver atom. As a consequence of this bonding mode, the structure is a highly cross-linked, coordination polymer.

The unit cell packing showing infinite cross-linked chains in the structure of AgBZT.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Solid State Chemistry - Volume 179, Issue 4, April 2006, Pages 1053–1059
نویسندگان
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