کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5160150 | 1501675 | 2017 | 33 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Mononuclear mercury(II) complexes containing bipyridine derivatives and thiocyanate ligands: Synthesis, characterization, crystal structure determination, and luminescent properties
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Mononuclear mercury(II) complexes containing bipyridine derivatives and thiocyanate ligands: Synthesis, characterization, crystal structure determination, and luminescent properties Mononuclear mercury(II) complexes containing bipyridine derivatives and thiocyanate ligands: Synthesis, characterization, crystal structure determination, and luminescent properties](/preview/png/5160150.png)
چکیده انگلیسی
A series of mercury(II) complexes, [Hg(NN)(SCN)2] (NN is 4,4â²-dimethyl-2,2â²-bipyridine in 1, 5,5â²-dimethyl-2,2â²-bipyridine in 2, 6,6â²-dimethyl-2,2â²-bipyridine in 3 and 6-methyl-2,2â²-bipyridine in 4), were prepared from the reactions of Hg(SCN)2 with mentioned ligands in methanol. Suitable crystals of these complexes were obtained for X-ray diffraction measurement by methanol diffusion into a DMSO solution. The four complexes were thoroughly characterized by spectral methods (IR, UV-Vis, 13C{1H}NMR, 1H NMR and luminescence), elemental analysis (CHNS) and single crystal X-ray diffraction. The X-ray structural analysis indicated that in the structures of these complexes, the mercury(II) cation is four-coordinated in a distorted tetrahedral configuration by two S atoms from two thiocyanate anions and two N atoms from one chelating 2,2â²-bipyridine derivative ligand. Also, in these complexes intermolecular interactions, for example CHâ¯N hydrogen bonds (in 1-4), CHâ¯S hydrogen bonds (in 1, 2 and 4), Ï â¦ Ï interactions (in 2-4), Hgâ¯N interactions (in 2) and Sâ¯S interactions (in 4), are effective in the stabilization of the crystal structures and the formation of the 3D supramolecular complexes. Furthermore, the luminescence spectra of the title complexes show that the intensity of their emission bands are stronger than the emission bands for the free bipyridine derivative ligands.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Structure - Volume 1142, 15 August 2017, Pages 92-101
Journal: Journal of Molecular Structure - Volume 1142, 15 August 2017, Pages 92-101
نویسندگان
Vahid Amani, Robabeh Alizadeh, Hanieh Soleimani Alavije, Samira Fadaei Heydari, Marzieh Abafat,