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Photochemistry of the glyoxal-hydrogen peroxide complexes in solid argon: Formation of 2-hydroxy-2-hydroperoxyethanal
被引:14
作者:
Mucha, Malgorzata
[1
]
Mielke, Zofia
[1
]
机构:
[1] Univ Wroclaw, Fac Chem, PL-50383 Wroclaw, Poland
关键词:
AB-INITIO;
MATRIX-ISOLATION;
VIBRATIONAL-SPECTRA;
C-H;
PHOTOLYSIS;
MECHANISM;
OXIDATION;
WATER;
ACID;
H2O2;
D O I:
10.1016/j.cplett.2009.09.082
中图分类号:
O64 [物理化学(理论化学)、化学物理学];
学科分类号:
070304 ;
081704 ;
摘要:
The structure and photochemistry of the glyoxal-hydrogen peroxide complexes isolated in solid argon was studied by help of FTIR spectroscopy and quantum chemistry methods. The comparison of the experimental spectra with the MP2/6-311++G(2d,2p) calculated ones indicates that glyoxal-hydrogen peroxide complexes trapped in the matrix have cyclic structures; each subunit acts as a proton donor and a proton acceptor. Exposure of the complexes to the lambda > 345 nm radiation induces the addition reaction of hydrogen peroxide to glyoxal and formation of the 2-hydroxy-2-hydroperoxyethanal molecule. (C) 2009 Published by Elsevier B. V.
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页码:87 / 92
页数:6
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