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http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/52652
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| 題名: | Antiferro- and Ferromagnetic Behaviors of Two New m1,3-N3 and m1,1-N3 Bridged Dinuclear Nickel(II) Complexes with 2,6-Bis(2-pyridyl)-4(1H)-pyridone and 2,6-Dimethyl-2,3-bis (2-pyridyl)quinoxaline Ligands |
| 作者: | 魏和祥;Wei, Ho-hsiang;廖俊源;Liao, Chun-yuan;鄭勝權;Cheng, Sheng-chuan;Sasankasekhar Mohanta |
| 貢獻者: | 淡江大學化學學系 |
| 關鍵詞: | Azide bridged;Dinickel(II);Crystallographic equivalence;Distortion of azide bridge |
| 日期: | 2002-12 |
| 上傳時間: | 2010-12-01 10:11:59 (UTC+8) |
| 出版者: | 臺北縣：淡江大學 |
| 摘要: | Two new N3-bridged dinuclear nickel(II) complexes, [Ni(ddqx)2 (μ1,3-N3)]2(ClO4)2⋅8CH3OH 1 and [Ni(tpd)(μ1,1-N3)(H2O)]2 2, (ddqx = 2,6-dimethyl-2,3-bis(2-pyridyl)quinoxaline and Htpd = 4-terpyridone = 2,6-bis(2-pyridyl)-4(1H)-pyridone), have been synthesized. Complex 1 crystallizes in the orthorhombic system with Ccca space group; the structure consists of isolated dimer and each Ni(II) atom is coordinated by two bidentate ddqx ligands and two end-to-end μ1,3-N3 groups. Complex 2 crystallizes in monoclinic P21/n space group; the structure consists of hydrogen-bonding linked 2-D chain of dinuclear Ni(II) complex, and each Ni(II) atom is coordinated by tridentate tpd ligand, water molecule and bridging μ1,1-N3 ligand; the hydrogen bonding formed between the hydrogen atom of H2O and oxygen atom of tpd ligand. Magnetic susceptibility data, measured from 2-300 K, reveal that complex 1 exhibits antiferromagnetic interaction with J = −29 cm-1, D = 10 cm-1, g = 2.0, whereas complex 2 exhibits ferromagnetic interaction with J = 17 cm-1, D = −8.5 cm-1, g = 2.18. The magneto-structural correlation has been discussed. |
| 關聯: | 淡江理工學刊=Tamkang journal of science and engineering 5(4)，頁129-136 |
| 顯示於類別: | [化學學系暨研究所] 期刊論文
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