کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1409781 | 1501833 | 2010 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Syntheses, crystal structures, and magnetic properties of two molecular materials by self-assembly of bis(maleonitriledithiolato)nickelate monoanion and substituted benzyltriphenylphosphinium
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Two molecular materials, [3RBzTPP][Ni(mnt)2] (mnt2â = maleonitriledithiolate, [3RBzTPP]+ = 3-R-benzyltriphenylphosphinium, R = CN(1), F(2)), have been investigated and characterized by elemental analyses, IR, UV spectroscopy, X-ray diffraction and magnetic susceptibility measurements. The [Ni(mnt)2]â anions of 1 and 2 stack into a column through the Niâ¯S or/and Sâ¯S interactions with a Niâ¯S distance of 3.765 Ã
for 1 and with the Niâ¯S and Sâ¯S distances of 3.654 Ã
and 3.681Â Ã
for 2. The weak CHâ¯N, CHâ¯F hydrogen bonds and Ïâ¯Ï stacking interactions result in the forming of a 3D network structure. Magnetic susceptibility measurements in the temperature range 2-300 K show that 1 shows an antiferromagnetic coupling behavior with θ = â9.3 K, and 2 exhibits a spin-gap transition with Î/kb = 945.0 K around 217 K.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Structure - Volume 981, Issues 1â3, 24 September 2010, Pages 139-145
Journal: Journal of Molecular Structure - Volume 981, Issues 1â3, 24 September 2010, Pages 139-145
نویسندگان
Xing Chen, Hai-Lian Zhou, Jing-Hua Lin, Qian Huang, Hong-Rong Zuo, Jia-Rong Zhou, Chun-Lin Ni, Xue-Lei Hu,