کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9770255 | 1501943 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Copper(II), nickel(II) and cobalt(II) complexes of 4-cyanobenzonic acid: syntheses, crystal structures and spectral properties
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Three new metal complexes, Cu(4-Hcba)2(4-cba)2(Py)2 (4-Hcba=4-cyanobenzoic acid) 1 and M[H(4-cba)2]2(Py)2 (M=Ni 2, Co 3), have been prepared by the treatment of 4-Hcba with the respective metal nitrate M(NO3)2 (M=Cu, Ni, Co) in the presence of pyridine (Py). Single-crystal X-ray diffraction analyses (3 is isostructural to 2) show that the obtained complexes are of isolated mononuclear and the metal atoms have distorted octahedral coordination environment. Two different types of intramolecular hydrogen bonds exist: asymmetrical O-Hâ¯O for 1 and symmetrical Oâ¯Hâ¯O for 2 and 3. The crystal packing between the molecular complexes is controlled mainly by T-shaped C-Hâ¯Ï interactions between pyridine and phenyl rings. Preliminary discussions on IR, UV-VIS and fluorescent spectra have also been carried out.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Structure - Volume 740, Issues 1â3, 25 April 2005, Pages 147-151
Journal: Journal of Molecular Structure - Volume 740, Issues 1â3, 25 April 2005, Pages 147-151
نویسندگان
Fa-Kun Zheng, A-Qing Wu, Yan Li, Guo-Cong Guo, Ming-Sheng Wang, Qiang Li, Jin-Shun Huang,