Synthesis Structure and Magnetic Properties of Double Bridged Dinuclear Copper(II) Complexes

• Main Authors: Chou-Yi-Chiang, 邱奕強
• Other Authors: Ho-Hsiang Wei
• Format: Others
• Language: zh-TW
• Published: 2002
• Online Access: http://ndltd.ncl.edu.tw/handle/13695909234544432514

碩士 === 淡江大學 === 化學學系 === 90 === Synthesis and structure of a series of dinuclear copper(II) complexes 1-6 containing Schiff-base，devired from 5-Bromosalicylaldehyde、salicylaldehyde 、4,6-Dimethoxysalicylaldehyde、3-Fluorosalicylaldehyde and 1,3-diamino-2-propanol. These complexes are bridged by an carboxylate and Glutaric acid or Dimethylmalonic acid or Imidazole. The main X-ray data are : ( 1 ) [ Cu2 ( L1 )( HCOO ) ]：Monoclinic P2/n、Z=4、a=7.3601 (2) A、b=19.9839 (5) A、c = 12.9352 (3) A、β= 95.884 (1)。 ( 2 ) [ Cu2 ( L2 )( C9H6N2 ) ]：Triclinic P1、Z = 2、a = 8.4259 (5) A、b = 10.5013 (7) A、c = 13.0456 (8) A、α= 86.839 (1)、β= 80.266 (1)、γ= 89.923 (1)。 ( 3 ) [ Cu2 ( L3 )( C9H6N2 ) ]：Monoclinic P2/c、Z = 4、a = 12.629 (2) A、b = 8.240 (2) A、c = 21.138 (5) A、β= 94.61 (2)。 ( 4 ) [ Cu2 ( L3 )( C3H4N2 ) ]：Triclinic P1、Z = 2、a = 8.6392 (10) A、b = 10.6431 (9) A、c = 11.6809 (13) A、α= 85.972 (8)、β= 71.492 (9)、γ= 72.221 (9)。 ( 5 ) [ Cu2 ( L4 )( C3H4N2 ) ]：Monoclinic C2/c、Z = 8、a = 28.2948 (5) A、b = 7.3033 (2) A、c = 26.3933 (5) A、β= 96.243 (1)。 ( 6 ) [ Cu4 ( L2 )2 ( C5H8O4 ) ]：Monoclinic P2/n、Z = 8、a = 11.435 (4) A、b = 14.311 (5) A、c = 29.070 (11) A、β= 92.87 (3)。 Magnetic susceptibility for all the compounds in solid state are measured over the temperature range 4.2－300 K . The magnetic behavior may be satisfactorily treated by Bleaney-Bowers equation for a spin-coupling S=1/2 system in which the singlet-triplet separation is 2J . The magnetic data show the different bridge ligand cause to the Copper(II) coordination symmetry change in space , the magnetic to appear ferromagnetism and antiferromagnetism .