- 作者: 張文昆 ; 李錦祥 ; 王瑜等
- 作者服務機構: 台灣大學化學系
- 中文摘要: The molecular structure of a binuclear copper(II) complex [ Cu/sub 2/L/sub 2/DMF/sub 2/ ] -DMF-2ClO/sub 4/ in which LH is 4-methyl-2,6-bis(indazol-2-ylmethyl)phenol and DMF is N,N-dimethylformamide is reported. The structure of the crystal was characterized by X-ray diffraction: monoclinic, space group P2/sub 1//c, Z=2, a=15.863(4), b=20.642(3), c=19.598(5).ANG., .beta.=113.05(2).degree.. The final R and Rw values are 0.060 and 0.061, respectively, for 4777 reflections with I>2.sigma.(I). Each copper(II) is penta coordinate, with two N atoms from the indazole ring, two O atoms from phenolate in ligands and another O atom from DMF to form a distorted square-pyramid. The mean value of the lengths of the four Cu-N bonds is 1.987(6).ANG. and the Cu...Cu distance is 3.094(1).ANG. No EPR signal was detected, and the magnetic moment has a small value.mu.=1.17 per copper. These results indicate strong antiferromagnetic interaction between the two copper(II) ions.
- 英文摘要: --
- 中文關鍵字: Dicopper Complex; Indazole; Antiferromagnetic Effect; Electron Paramagnetic Resonance (Epr); Molecular Structure
- 英文關鍵字: 雙銅配位化合物;唑;反鐵磁效應;電子順磁共振;分子結構