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Study of the stability of solid polyoxometalate Mo72Fe30 with a buckyball structure
Samples of polyoxometalate Mo 72 Fe 30 : [Mo 72 Fe 30 O 252 (CH 3 COO) 12 {Mo 2 O 7 (H 2 O)} 2 {H 2 Mo 2 O 8 (H 2 O)}(H 2 O) 91 ] · ≈150H 2 O with a buckyball structure, which can be both crystalline and amorphous, were synthesized. It was shown that such samples can be studied by neutron diffractio...
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Published in: | Russian journal of inorganic chemistry 2012-06, Vol.57 (6), p.858-863 |
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Main Authors: | , , , , , , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | Samples of polyoxometalate Mo
72
Fe
30
: [Mo
72
Fe
30
O
252
(CH
3
COO)
12
{Mo
2
O
7
(H
2
O)}
2
{H
2
Mo
2
O
8
(H
2
O)}(H
2
O)
91
] · ≈150H
2
O with a buckyball structure, which can be both crystalline and amorphous, were synthesized. It was shown that such samples can be studied by neutron diffraction. The stability of Mo
72
Fe
30
to heating and UV light exposure (in poly(vinyl alcohol) and polyvinylpyrrolidone films) was studied by IR, EPR, and electronic absorption spectroscopy; thermal analysis; and mass spectrometry. Mo
72
Fe
30
was found to be less stable to heating and irradiation in a poly(vinyl alcohol) film as compared with the related polyoxometallate Mo
132
free of iron. The sorption properties of Mo
72
Fe
30
to organic vapors and its stability under sorption conditions were studied. It was demonstrated that, in addition to sorption, organic substances cause the destruction of buckyballs. |
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ISSN: | 0036-0236 1531-8613 |
DOI: | 10.1134/S0036023612060174 |