Volume 18, Issue 58 (No.3&4-صفحات انگلیسی از 13 تا 73 2004)                   2004, 18(58): 32-45 | Back to browse issues page

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Synthesis of two New Dinuclear Copper(II) Complexes and ESR Studies ofCopper(II) – Copper(II) Interaction Through  System. Quarterly Journal of Science Kharazmi University. 2004; 18 (58) :32-45
URL: http://jsci.khu.ac.ir/article-1-1136-en.html
Abstract:   (4679 Views)
Our main objective is a better understanding of spin spin interaction of dinuclear copper(II) complexes through  system. The synthesis and characterization of two new dinuclear copper(II) complexes, based on the use of large, pyrole-containing macrocycles, the so called “ expanded porphyrins” , [Cu2(macrocycle)]4+ is described. A chloroform solution spectrum of two complexes taken at room temperature and 130135 K gave a classic electron spin resonance (ESR) pattern for both compounds. Both complexes show a triplet state(S = 1), with both M = 1 and M = 2 (half field) transition which is the characteristics of Cu(II) Cu(II) dimer. The observation of M = 2 band strongly suggests the spin spin interaction occurs through  system. All compounds exhibit a typical M = 1 transition with superhyperfine splitting due to the 14N bound to copper.
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Published: 2004/08/15

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