The Highly Connected MOFs Constructed from Nonanuclear
and Trinuclear Lanthanide-Carboxylate Clusters: Selective Gas Adsorption
and Luminescent pH Sensing
Yun-Jian Li
Yu-Ling Wang
Qing-Yan Liu
10.1021/acs.inorgchem.6b02811.s003
https://acs.figshare.com/articles/dataset/The_Highly_Connected_MOFs_Constructed_from_Nonanuclear_and_Trinuclear_Lanthanide-Carboxylate_Clusters_Selective_Gas_Adsorption_and_Luminescent_pH_Sensing/4596565
The
highly odd-numbered 15-connected nonanuclear [Ln<sub>9</sub>(μ<sub>3</sub>-O)<sub>2</sub>(μ<sub>3</sub>-OH)<sub>12</sub>(O<sub>2</sub>C−)<sub>12</sub>(HCO<sub>2</sub>)<sub>3</sub>] and 9-connected trinuclear [Ln<sub>3</sub>(μ<sub>3</sub>-O)(O<sub>2</sub>C−)<sub>6</sub>(HCO<sub>2</sub>)<sub>3</sub>] lanthanide-carboxylate clusters with triangular
and linear carboxylate bridging ligands were synergistically combined
into Ln-MOFs, [(CH<sub>3</sub>)<sub>2</sub>NH<sub>2</sub>]<sub>3</sub>{[Ln<sub>9</sub>(μ<sub>3</sub>-O)<sub>2</sub>(μ<sub>3</sub>-OH)<sub>12</sub>(H<sub>2</sub>O)<sub>6</sub>][Ln<sub>3</sub>(μ<sub>3</sub>-O)(H<sub>2</sub>O)<sub>3</sub>](HCO<sub>2</sub>)<sub>3</sub>(BTB)<sub>6</sub>}·(solvent)<sub><i>x</i></sub> (abbreviated
as <b>JXNU-3</b>, Ln = Gd, Tb, Er; BTB<sup>3–</sup> =
benzene-1,3,5-tris(4-benzoate)), displaying a (3,9,15)-connected topological
net. The <b>JXNU-3</b>(Tb) exhibits highly selective CO<sub>2</sub> adsorption capacity over CH<sub>4</sub> that resulted from
the high localized charge density induced by the presence of the nonanuclear
and trinuclear cluster units. In addition, <b>JXNU-3</b>(Tb)
with high chemical stability and characteristic bright green color
exhibits fluorescent pH sensing, which is pertinent to the different
protonation levels of the carboxylate groups of the benzene-1,3,5-tris(4-benzoate)
ligand with varying pH.
2017-01-30 18:53:36
ligand
carboxylate
nonanuclear
OH
CO 2 adsorption capacity
benzene
JXNU -3
HCO
BTB
pH
trinuclear cluster units
NH
CH
Connected MOFs Constructed
exhibit
Ln
Tb
Trinuclear Lanthanide-Carboxylate Clusters
Selective Gas Adsorption