کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9614895 | 48556 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Theoretical study of nickel porphyrinate derivatives related to catalyst dopant in the oil industry
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
کاتالیزور
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
Ni-porphyrinate is totally planar hence exhibiting a marked difference with respect to the analogous vanadyl compound which has been shown to have a dome shape. The Ni-porphyrinates studied in the present work exhibit a slight non-planar shape. The origin of this strain has been attributed to the reduced space of the porphyrin molecule cavity and also to the presence of peripheral substituents. It appears that the largest deviation from planarity occurs in the case of phenyl substituents whereas in both aliphatic cases a similar strain is predicted. This feature could be attributed to a large increase in the electronic density near the metal center caused by the presence of the aromatic rings.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Catalysis A: Chemical - Volume 228, Issues 1â2, 16 March 2005, Pages 195-202
Journal: Journal of Molecular Catalysis A: Chemical - Volume 228, Issues 1â2, 16 March 2005, Pages 195-202
نویسندگان
Isidoro GarcÃa-Cruz, José Manuel MartÃnez-Magadán, Fernando Alvarez-Ramirez, Roberto Salcedo, Francesc Illas,