کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1411977 | 1501918 | 2006 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Second sphere coordination in anion binding: Syntheses, characterization and X-ray structures of [trans-Co(en)2(X)2]Y where X=Cl when Y= IO4 or X=N3 when Y=N3
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Green coloured single crystals of [trans-Co(en)2Cl2]IO4I and dark red coloured single crystals of [trans-Co(en)2(N3)2]N3II were obtained by slowly mixing stoichiometric quantities of the separately dissolved trans-dichlorobis(ethylenediamine)cobalt(III) chloride with sodium metaperiodate or sodium azide in aqueous medium. Elemental analyses, spectroscopic studies (IR, UV/visible, 1H and 13C NMR) and solubility measurements were performed to characterize the complex salts. The compound I crystallizes in the monoclinic space group P21/c with a=6.3970(2), b=16.6790(4), c=12.3730(3) Ã
, β=99.148(1)°, V=1303.35(6) Ã
3, Z=4 and II crystallizes in the orthorhombic space group Pbca with a=10.1790(1), b=13.5350(1), c=17.2410(2) Ã
, V=2375.34(4) Ã
3, Z=8. Supramolecular hydrogen bonding networks between ionic groups [NHen+â¯Xanionâ] by second sphere coordination besides electrostatic forces of attraction have been observed. Compound II represents the first reported structure of a salt containing the cation, [trans-Co(en)2(N3)2]+.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Structure - Volume 794, Issues 1â3, 7 August 2006, Pages 173-180
Journal: Journal of Molecular Structure - Volume 794, Issues 1â3, 7 August 2006, Pages 173-180
نویسندگان
Raj Pal Sharma, Rajni Sharma, Ritu Bala, Andrew D. Burrows, Mary F. Mahon, Kevin Cassar,