Source:http://linkedlifedata.com/resource/pubmed/id/16819886
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
27
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pubmed:dateCreated |
2006-7-5
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pubmed:abstractText |
The potential of tetrazolate-based ligands for forming metal-organic frameworks of utility in hydrogen storage is demonstrated with the use of 1,4-benzeneditetrazolate (BDT(2)(-)) to generate a series of robust, microporous materials. Reaction of H(2)BDT with MnCl(2).4H(2)O and Mn(NO(3))(2).4H(2)O in N,N-diethylformamide (DEF) produces the two-dimensional framework solids Mn(3)(BDT)(2)Cl(2)(DEF)(6) (1) and Mn(4)(BDT)(3)(NO(3))(2)(DEF)(6) (2), whereas reactions with hydrated salts of Mn(2+), Cu(2+), and Zn(2+) in a mixture of methanol and DMF afford the porous, three-dimensional framework solids Zn(3)(BDT)(3)(DMF)(4)(H(2)O)(2).3.5CH(3)OH (3), Mn(3)(BDT)(3)(DMF)(4)(H(2)O)(2).3CH(3)OH.2H(2)O.DMF (4), Mn(2)(BDT)Cl(2)(DMF)(2).1.5CH(3)OH.H(2)O (5), and Cu(BDT)(DMF).CH(3)OH.0.25DMF (6). It is shown that the method for desolvating such compounds can dramatically influence the ensuing gas sorption properties. When subjected to a mild evacuation procedure, compounds 3-6 exhibit permanent porosity, with BET surface areas in the range 200-640 m(2)/g. The desolvated forms of 3-5 store between 0.82 and 1.46 wt % H(2) at 77 K and 1 atm, with enthalpies of adsorption in the range 6.0-8.8 kJ/mol, among the highest so far reported for metal-organic frameworks. In addition, the desolvated form of 6 exhibits preferential adsorption of O(2) over H(2) and N(2), showing promise for gas separation and purification applications.
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pubmed:commentsCorrections | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:status |
PubMed-not-MEDLINE
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pubmed:month |
Jul
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pubmed:issn |
0002-7863
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
12
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pubmed:volume |
128
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
8904-13
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pubmed:year |
2006
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pubmed:articleTitle |
Microporous metal-organic frameworks incorporating 1,4-benzeneditetrazolate: syntheses, structures, and hydrogen storage properties.
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pubmed:affiliation |
Department of Chemistry, University of California, Berkeley, California 94720, USA.
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pubmed:publicationType |
Journal Article
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