RESONANCE RAMAN CHARACTERIZATION OF IRON(III) PORPHYRIN N-OXIDE - EVIDENCE FOR AN FE-O-N BRIDGED STRUCTURE

被引:16
|
作者
MIZUTANI, Y
WATANABE, Y
KITAGAWA, T
机构
[1] OKAZAKI NATL RES INST,INST MOLEC SCI,OKAZAKI 444,JAPAN
[2] GRAD UNIV ADV STUDIES,SCH MATH & PHYS SCI,DEPT FUNCT MOLEC SCI,OKAZAKI 444,AICHI,JAPAN
[3] KYOTO UNIV,GRAD SCH ENGN,DIV MOLEC ENGN,SAKYO KU,KYOTO 606,JAPAN
关键词
D O I
10.1021/ja00087a032
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Resonance Raman (RR) spectra are reported for iron(III) tetramesityl porphyrin (TMP) N-oxide and its O-18 and N-15 derivatives, The RR bands assignable to the Fe-O stretching, O-N stretching, and Fe-O-N bending vibrations were observed at 506, 1122, and 743 and 708 cm(-1), respectively. This confirms that the complex has the Fe-O-N bridged structure. The RR bands of the macrocycle such as the CbetaCbeta and CalphaN stretching modes were split into doublets due to lowering of symmetry. The RR band arising from the C-m-phenyl stretching band exhibited a downshift by 4 cm(-1) upon formation of the N-oxide, suggesting considerable distortion of the macrocycle.
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页码:3439 / 3441
页数:3
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