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Synthesis, Characterization, and Catalytic Activity of Metallo Octamethylcalix (4) Pyridino Complexes Encapsulated in MCM-41
被引:4
作者:
Rohitha, C. N.
[1
]
Kulkarni, S. J.
[1
]
Narender, N.
[1
]
机构:
[1] Indian Inst Chem Technol, Catalysis Grp, Hyderabad 500607, Andhra Pradesh, India
关键词:
Encapsulation;
MCM-41;
metallomacrocycles;
molecular sieves;
oxidation;
SCHIFF-BASE COMPLEXES;
ZEOLITE;
OXIDATION;
DIOXYGEN;
PHTHALOCYANINE;
PORPHYRIN;
COBALT;
D O I:
10.1080/00397911.2012.745565
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
The synthesis and encapsulation of M+n-octamethylcalix(4)pyridino complexes using acetone and pyridine in H-MCM-41 have been achieved and presented. These hybrid catalysts are characterized by x-ray diffraction, infrared, thermal analysis, Brunauer-Emmett-Teller (BET) surface area, and scanning electron microscopy and tested for catalytic activity. They are active in the liquid-phase oxidation of p-xylene using H2O2 as oxidant and acetic acid as solvent in the temperature range of 30-100 degrees C. The variation of central transition-metal cation and the heterocyclic ring in the metallomacrocycle influence the catalytic activity. [Supplementary materials are available for this article. Go to the publisher's online edition of Synthetic Communications (R) for the following free supplemental resource(s): Full experimental and spectral details.]
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页码:2853 / 2866
页数:14
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