A Chemically Functionalizable Nanoporous Material [Cu 3 (TMA) 2 (H 2 O) 3 ] n
10.1126/science.283.5405.1148
Crossref journal-article
American Association for the Advancement of Science (AAAS)
Science (221)
Abstract

Although zeolites and related materials combine nanoporosity with high thermal stability, they are difficult to modify or derivatize in a systematic way. A highly porous metal coordination polymer [Cu 3 (TMA) 2 (H 2 O) 3 ] n (where TMA is benzene-1,3,5-tricarboxylate) was formed in 80 percent yield. It has interconnected [Cu 2 (O 2 CR) 4 ] units (where R is an aromatic ring), which create a three-dimensional system of channels with a pore size of 1 nanometer and an accessible porosity of about 40 percent in the solid. Unlike zeolites, the channel linings can be chemically functionalized; for example, the aqua ligands can be replaced by pyridines. Thermal gravimetric analysis and high-temperature single-crystal diffractometry indicate that the framework is stable up to 240°C.

Bibliography

Chui, S. S.-Y., Lo, S. M.-F., Charmant, J. P. H., Orpen, A. G., & Williams, I. D. (1999). A Chemically Functionalizable Nanoporous Material [Cu 3 (TMA) 2 (H 2 O) 3 ] n . Science, 283(5405), 1148–1150.

Authors 5
  1. Stephen S.-Y. Chui (first)
  2. Samuel M.-F. Lo (additional)
  3. Jonathan P. H. Charmant (additional)
  4. A. Guy Orpen (additional)
  5. Ian D. Williams (additional)
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  39. The analytical and calculated (in parentheses) data for [Cu 3 (TMA) 2 (py) 3 ]·0.5(py)·2H 2 O are as follows: C 43.54% (46.48%); H 3.54% (3.01%); and N 5.52% (5.30%). TGA showed Δ w = –3.9% from 25° to 120°C and Δ w = –54.2% from 120° to 400°C (–py –CO 2 and others).
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  41. Analysis for the DMF product gave the best formulation as [Cu 3 (TMA) 2 (H 2 O) 3 ]·2.5(DMF)·2.5(H 2 O) on the basis of combined chemical and thermal gravimetric analyses. The analytical and calculated (in parentheses) data are as follows: C 34.6% (34.5%); H 3.42% (3.89%); N 4.01% (3.95%); Δ w = –11.4% from 25° to 120°C (H 2 O loss); and Δ w = –48.6% from 150° to 400°C (DMF and CO 2 loss). Variable-temperature single-crystal studies of the DMSO derivative showed no bound DMSO at RT; heating up to 200°C produced intensity changes due to solvent loss (reflection 222 increases in intensity and reflection 400 decreases). Cooling to RT resulted in a general reversal of these trends.
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  43. We are grateful to the Research Grants Council of Hong Kong (RGC grants 6148-97P and 6061-98P) and the Advanced Materials Research Institute (AMRI-HKUST) for financial support and to J. Zheng and A. Siu for technical assistance.
Dates
Type When
Created 23 years ago (July 27, 2002, 5:39 a.m.)
Deposited 1 year, 7 months ago (Jan. 12, 2024, 10:42 p.m.)
Indexed 23 minutes ago (Aug. 21, 2025, 6:29 a.m.)
Issued 26 years, 6 months ago (Feb. 19, 1999)
Published 26 years, 6 months ago (Feb. 19, 1999)
Published Print 26 years, 6 months ago (Feb. 19, 1999)
Funders 0

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@article{Chui_1999, title={A Chemically Functionalizable Nanoporous Material [Cu 3 (TMA) 2 (H 2 O) 3 ] n }, volume={283}, ISSN={1095-9203}, url={http://dx.doi.org/10.1126/science.283.5405.1148}, DOI={10.1126/science.283.5405.1148}, number={5405}, journal={Science}, publisher={American Association for the Advancement of Science (AAAS)}, author={Chui, Stephen S.-Y. and Lo, Samuel M.-F. and Charmant, Jonathan P. H. and Orpen, A. Guy and Williams, Ian D.}, year={1999}, month=feb, pages={1148–1150} }