From condensed lanthanide coordination solids to microporous frameworks having accessible metal sites

Theresa M. Reineke; Mohamed Eddaoudi; Michael Fehr; Douglas Kelley; O. M. Yaghi

doi:10.1021/ja983577d

From condensed lanthanide coordination solids to microporous frameworks having accessible metal sites

Theresa M. Reineke, Mohamed Eddaoudi, Michael Fehr, Douglas Kelley, O. M. Yaghi

Chemistry (Twin Cities)

Research output: Contribution to journal › Article › peer-review

880 Scopus citations

Abstract

The combination of terbium nitrate and 1,4-benzenedicarboxylic acid (H₂BDC) in the presence of triethylamine yields the compound Tb₂(BDC)₃·(H₂O)₄, which has an extended nonporous structure constructed from copolymerized BDC and Tb(III) units. The multidentate functionality of BDC and the tendency of Tb to have a high coordination number has allowed water to act as a terminal ligand to Tb in the structure. Upon thermally liberating the water ligands, a microporous material, Tb₂(BDC)₃, is achieved, which has extended 1-D channels and the same framework structure as that of the as-synthesized solid as evidenced by XRPD. Water sorption isotherm data proves that Tb₂(BDC)₃ has permanent microporosity, and points to the presence of accessible metal sites within the pores, which also allows the sorption of ammonia to give Tb₂(BDC)₃·(NH₃)₄. Luminescence lifetime measurements confirm that resorbed water and sorbed ammonia are bound to Tb and that they give distinctly different decay constants.

Original language	English (US)
Pages (from-to)	1651-1657
Number of pages	7
Journal	Journal of the American Chemical Society
Volume	121
Issue number	8
DOIs	https://doi.org/10.1021/ja983577d
State	Published - Mar 3 1999

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title = "From condensed lanthanide coordination solids to microporous frameworks having accessible metal sites",

abstract = "The combination of terbium nitrate and 1,4-benzenedicarboxylic acid (H2BDC) in the presence of triethylamine yields the compound Tb2(BDC)3·(H2O)4, which has an extended nonporous structure constructed from copolymerized BDC and Tb(III) units. The multidentate functionality of BDC and the tendency of Tb to have a high coordination number has allowed water to act as a terminal ligand to Tb in the structure. Upon thermally liberating the water ligands, a microporous material, Tb2(BDC)3, is achieved, which has extended 1-D channels and the same framework structure as that of the as-synthesized solid as evidenced by XRPD. Water sorption isotherm data proves that Tb2(BDC)3 has permanent microporosity, and points to the presence of accessible metal sites within the pores, which also allows the sorption of ammonia to give Tb2(BDC)3·(NH3)4. Luminescence lifetime measurements confirm that resorbed water and sorbed ammonia are bound to Tb and that they give distinctly different decay constants.",

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AU - Reineke, Theresa M.

AU - Eddaoudi, Mohamed

AU - Fehr, Michael

AU - Kelley, Douglas

AU - Yaghi, O. M.

PY - 1999/3/3

Y1 - 1999/3/3

N2 - The combination of terbium nitrate and 1,4-benzenedicarboxylic acid (H2BDC) in the presence of triethylamine yields the compound Tb2(BDC)3·(H2O)4, which has an extended nonporous structure constructed from copolymerized BDC and Tb(III) units. The multidentate functionality of BDC and the tendency of Tb to have a high coordination number has allowed water to act as a terminal ligand to Tb in the structure. Upon thermally liberating the water ligands, a microporous material, Tb2(BDC)3, is achieved, which has extended 1-D channels and the same framework structure as that of the as-synthesized solid as evidenced by XRPD. Water sorption isotherm data proves that Tb2(BDC)3 has permanent microporosity, and points to the presence of accessible metal sites within the pores, which also allows the sorption of ammonia to give Tb2(BDC)3·(NH3)4. Luminescence lifetime measurements confirm that resorbed water and sorbed ammonia are bound to Tb and that they give distinctly different decay constants.

AB - The combination of terbium nitrate and 1,4-benzenedicarboxylic acid (H2BDC) in the presence of triethylamine yields the compound Tb2(BDC)3·(H2O)4, which has an extended nonporous structure constructed from copolymerized BDC and Tb(III) units. The multidentate functionality of BDC and the tendency of Tb to have a high coordination number has allowed water to act as a terminal ligand to Tb in the structure. Upon thermally liberating the water ligands, a microporous material, Tb2(BDC)3, is achieved, which has extended 1-D channels and the same framework structure as that of the as-synthesized solid as evidenced by XRPD. Water sorption isotherm data proves that Tb2(BDC)3 has permanent microporosity, and points to the presence of accessible metal sites within the pores, which also allows the sorption of ammonia to give Tb2(BDC)3·(NH3)4. Luminescence lifetime measurements confirm that resorbed water and sorbed ammonia are bound to Tb and that they give distinctly different decay constants.

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From condensed lanthanide coordination solids to microporous frameworks having accessible metal sites

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