Τίτλος:
Two new alkaline earth metal organic frameworks with the diamino
derivative of biphenyl-4,4 ‘-dicarboxylate as bridging ligand:
Structures, fluorescence and quenching by gas phase aldehydes
Γλώσσες Τεκμηρίου:
Αγγλικά
Περίληψη:
Alkaline earth metal ion organic frameworks (AEMOFs) represent a
relatively underexplored subcategory of MOFs. Two new MOFs
[Ca-6(bpdc-(NH2)(2))(5)(mu(3)-HCO2)(2)(H2O)(2.5)(DMF)(0.5)]center dot
0.5H(2)O center dot 2.5DMF (1) and [Sr-4(bpdc-(NH2)(4))(
mu(2)-DMF)(2)(DMF)(1/3)]center dot 2/3(DMF) (2) [H(2)bpdc-(NH2)(2)=
2,2’-diamino-[1,1’-biphenyl]-4,4’dicarboxylic acid); DMF =
N,N-dimethylformamide] are presented here. These MOFs display structural
variety with diverse topologies and new structural features.
Luminescence studies revealed that both MOFs display ligand based
fluorescence with small differences in emission profiles possibly
attributable to the difference in charge density of the metal ions
combined with the different conformation adopted by the ligand in the
crystal structures of 1 and 2. Furthermore, initial sensing studies
reveal that both MOFs can potentially function as fluorescent sensors
for gas phase aldehydes. (C) 2018 Elsevier Ltd. All rights reserved.
Συγγραφείς:
Stavros A. Diamantis
Anastasia D. Pournara
Antonios G. Hatzidimitriou
Manolis J. Manos
Giannis S. Papaefstathiou
Theodore Lazarides
Κύρια θεματική κατηγορία:
Θετικές Επιστήμες
DOI:
10.1016/j.poly.2018.07.010
