|
"Design and synthesis of an
exceptionally stable and highly porous metal-organic framework,"
by Hailian Li, Mohamed Eddaoudi, M. O'Keefe, and O.M. Yaghi, Nature,
402(6759):276-9, 18 November 1999.
[Authors' affiliations: University of
Michigan, Ann Arbor; Arizona State University, Tempe]
Abstract: "Open metal-organic
frameworks are widely regarded as promising materials for applications in
catalysis, separation, gas storage and molecular recognition. Compared to
conventionally used microporous inorganic materials such as zeolites, these
organic structures have the potential for more flexible rational design,
through control of the architecture and functionalization of the pores. So
far, the inability of these open frameworks to support permanent porosity and
to avoid collapsing in the absence of guest molecules, such as solvents, has
hindered further progress in the field. Here we report the synthesis of a
metal-organic framework which remains crystalline, as evidenced by X-ray
single-crystal analyses, and stable when fully desolvated and when heated up
to 300 degrees C. This synthesis is achieved by borrowing ideas from metal
carboxylate cluster chemistry, where an organic dicarboxylate linker is used
in a reaction that gives supertetrahedron clusters when capped with
monocarboxylates. The rigid and divergent character of the added linker allows
the articulation of the clusters into a three-dimensional framework resulting
in a structure with higher apparent surface area and pore volume than most
porous crystalline zeolites. This simple and potentially universal design
strategy is currently being pursued in the synthesis of new phases and
composites, and for gas-storage applications."
This 1999 report from Nature was cited
14 times in current journal articles indexed in the ISI database
during July-August 2001. Only one other chemistry report, aside from reviews,
received more citations during that two-month period. Prior to the most recent
bimonthly count, citations to the paper have accrued as follows:
May-June 2001: 12 citations
March-April 2001: 18
January-February 2001: 12
November-December 2000: 6
September-October 2000: 7
July-August 2000: 7
May-June 2000: 5
March-April 2000: 1
November-December 1999: 1
Total citations to date: 83
SOURCE: Hot
Papers Database (Available from the ISI
Research Services Group in a CD-ROM version containing data on
hundreds of highly cited papers published during the last two years.
User interface permits searching by author, organization, journal,
field, and more. Total citations, as well as citations accrued during
successive bimonthly periods, can be assessed and graphed. Database is
combined with subscription to the ISI newsletter Science
Watch®; updated discs containing the
most recent bimonthly data are mailed with each new issue, six times a
year.)
Return to SCI
Previous Page | Return to SCI-BYTES
Main Menu
| Return to 2001 Menu
If you came from the Thomson Scientific Web site, click
here to return
|
cites
:
