کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9770466 | 1501949 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The chiral structure induced by lone-pair electrons: syntheses and characterization of two novel chiral rare-earth selenites containing homochiral helical chains
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: The chiral structure induced by lone-pair electrons: syntheses and characterization of two novel chiral rare-earth selenites containing homochiral helical chains The chiral structure induced by lone-pair electrons: syntheses and characterization of two novel chiral rare-earth selenites containing homochiral helical chains](/preview/png/9770466.png)
چکیده انگلیسی
Two novel layered chiral rare-earth selenites [Ln(H2O)(HSeO3)(SeO3)] H2O (Ln=Dy, 1, and Gd, 2) have been hydrothermally synthesized and characterized by the elemental analyses, IR spectra, XPS spectra, TG analyses and the single crystal X-ray diffraction. Compound 1 crystallizes in the orthorhombic system, space group P212121, with a=6.5767(13)Â Ã
, b=6.9320(14)Â Ã
, c=16.333(3)Â Ã
, and Z=4. Compound 2 crystallizes in the orthorhombic system, space group P212121, with a=6.6216(13)Â Ã
, b=7.0086(14)Â Ã
, c=16.424(3)Â Ã
, and Z=4. Compounds 1 and 2 are isostructural, and both exhibit interesting chiral layer constructed from {Ln(H2O)(HSeO3)}n left-handed helical chains linked by [SeO3]2â anions. Furthermore, the chiral layers are connected by strong hydrogen bonding interactions to form the three-dimensional structure with chiral channels along the [100] directions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Structure - Volume 733, Issues 1â3, 3 January 2005, Pages 69-75
Journal: Journal of Molecular Structure - Volume 733, Issues 1â3, 3 January 2005, Pages 69-75
نویسندگان
Dongrong Xiao, Haiyan An, Enbo Wang, Lin Xu, Changwen Hu,