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https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/25287
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| Title: | Syntheses, structures, and magnetic properties of two new μ-alkoxo-μ-pyrazolato bridged dicopper(II) complexes |
| Authors: | 魏和祥;Wei, Ho-hsiang;Huang, Shu-Fei;Chou, Yi-Chian;Misra, Phalguni;Lee, Chin-Jhan;Mohanta, Sasankasekhar |
| Contributors: | 淡江大學化學學系 |
| Keywords: | Heterobridged;μ-Alkoxo-μ-pyrazolato dicopper(II);Antiferromagnetic;Complementarity;Countercomplementarity;X-ray structures |
| Date: | 2004-03-25 |
| Issue Date: | 2009-12-01 |
| Publisher: | Elsevier |
| Abstract: | The syntheses, structures, and magnetic properties of two new μ-alkoxo-μ-pyrazolato heterobridged compounds, [Cu II2(L1-F)(μ-prz)] (1) and [Cu II2(L1-2OMe) (μ-prz)] · 0.5 CH3CN (2) (prz=pyrazolato; H2L1-F=1,3-bis(3-fluorosalicylideneamino)-2-propanol; H2L1-2OMe=1,3-bis(4,6-dimethoxy salicylideneamino)-2-propanol) have been reported. Compound 1 crystallizes in triclinic Full-size image (<1 K) space group with a=8.6392(10) Å, b=10.6431(9) Å, c=11.6809(13) Å, α=85.972(8)°, β=71.492(9)°, and γ=72.221(9)°, while the unit cell parameters of 2 are as follows: space group: monoclinic C2/c, a=28.2948(5) Å, b=7.3033(2) Å, c=26.3933(5) Å, and β=96.243(1)°. The variable-temperature magnetic susceptibility measurements reveal that the metal centers in both the compounds are antiferromagnetically coupled with J=−200 cm−1 for 1 and J=−175 cm−1 for 2. The magnetic behaviors have been explained on the basis of two opposing factors, complementarity and countercomplementarity of magnetic orbitals. |
| Relation: | Inorganica Chimica Acta 357(5), pp.1627-1631 |
| DOI: | 10.1016/j.ica.2003.11.021 |
| Appears in Collections: | [化學學系暨研究所] 期刊論文
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