کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1403639 | 1501806 | 2012 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Construction of 3D supramolecular networks based on 1D chains from flexible bis(imidazolyl) and 4-hydroxybenzolate
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The reaction of 1,2-bis(imidazol-1â²-yl)ethane (bime), 4-hydroxybenzoic acid (HO-HBC) with different metal salts in water/ethanol gave rise to three supramolecular architectures [M(HO-BC)2(H2O)2(bime)]n [M = Mn(II), Co(II) and Ni(II)]. Single crystal X-ray diffraction analysis reveals that complexes 1-3 are isomorphous and are 3D supramolecular networks. HO-BC serves as a monodentate ligand through one carboxylate oxygen atom coordinating to metal center. The extensive hydrogen bonds from HO-BC and coordination water result in the formation of 3D supramolecular networks. The gauche-conformational bime connects the neighboring metal ions into 1D chain, which is located in the large void of the 3D networks. The thermogravimetric analysis reveals that complexes 1-3 are stable before 273 °C. Magnetic analysis shows that there are no interactions between neighboring metal ions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Structure - Volume 1008, 25 January 2012, Pages 63-68
Journal: Journal of Molecular Structure - Volume 1008, 25 January 2012, Pages 63-68
نویسندگان
Xiaofang Guo, Xiaoju Li, Xiulan Weng, Shen Lin,