کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1237122 | 1495292 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Single crystal EPR study of VO(II) in magnesium potassium phosphate hexahydrate: a case of two substitutional vanadyl ions
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
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![عکس صفحه اول مقاله: Single crystal EPR study of VO(II) in magnesium potassium phosphate hexahydrate: a case of two substitutional vanadyl ions Single crystal EPR study of VO(II) in magnesium potassium phosphate hexahydrate: a case of two substitutional vanadyl ions](/preview/png/1237122.png)
چکیده انگلیسی
Single crystal EPR study of VO(II)-doped magnesium potassium phosphate hexahydrate has been carried out at room temperature. Single crystal rotations in the three orthogonal planes indicate that the paramagnetic impurity has entered the lattice in place of magnesium ions by replacing the equatorial and axial coordinated water molecules. The spin Hamiltonian parameters obtained for the two substitutional sites are: site 1: g1Â =Â 1.9800, g2Â =Â 1.9774, g3Â =Â 1.9296, A1Â =Â 7.25Â mT, A2Â =Â 8.09Â mT, A3Â =Â 18.69Â mT and site 2: g1Â =Â 1.9802, g2Â =Â 1.9765, g3Â =Â 1.9296, A1Â =Â 6.82Â mT, A2Â =Â 8.48Â mT, A3Â =Â 18.75Â mT, respectively. Superhyperfine, from protons of ligand water molecules, has been observed at certain orientations. It has been concluded that VO bond directions of the two substitutional ions are orthogonal to each other.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy - Volume 61, Issues 11â12, September 2005, Pages 2482-2487
Journal: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy - Volume 61, Issues 11â12, September 2005, Pages 2482-2487
نویسندگان
S. Deepa, K. Velavan, I. Sougandi, R. Venkatesan, P. Sambasiva Rao,