Photoacoustic detection of d-d transitions and electronic structure of three polyamine copper complexes

被引:11
作者
Guskos, N [1 ]
Papadopoulos, G
Likodimos, V
Mair, GLR
Majszczyk, J
Typek, J
Wabia, M
Grech, E
Dziembowska, T
Perkowska, TA
机构
[1] Univ Athens, Dept Phys, Solid State Sect, Athens 15784, Greece
[2] Tech Univ Szczecin, Inst Phys, PL-71570 Szczecin, Poland
[3] Tech Univ Szczecin, Inst Fundamental Chem, PL-70310 Szczecin, Poland
[4] Polish Acad Sci, Inst Bioorgan Chem, PL-61704 Poznan, Poland
关键词
D O I
10.1088/0022-3727/33/20/320
中图分类号
O59 [应用物理学];
学科分类号
摘要
The potential of photoacoustic spectroscopy to resolve the crystal field levels of Cu2+ ions in three polyamine copper complexes, aqua spermine copper sulfate trihydrate [NH2(CH2)(3)NH(CH2)(4)NH(CH2)(3)NH2. Cu2+.H2O]. SO42-. 3H(2)O, norspermine copper sulfate trihydrate [NH2(CH2)(3)NH(CH2)(3)NH(CH2)(3)NH2. Cu2+. SO42-]. 3H(2)O, and homospermine copper sulfate dihydrate [NH2(CH2)(3)NH(CH2)(2)NH(CH2)(3)NH2. Cu2+. SO42-]. 2H(2)O, has been explored along with UV/VIS and electron paramagnetic resonance (EPR) spectroscopy. Intense absorption is detected in the photoacoustic spectrum corresponding to the d-d transition band weakly traced in the corresponding optical spectrum. The observed fine structure photoacoustic lines are assigned to the individual d-d transitions of Cu2+ ions, which are further exploited to determine the diverse metal-ligand interaction of the studied compound employing simple crystal field analysis.
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页码:2664 / 2668
页数:5
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