TY - JOUR TI - 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 AU - Stavros A. Diamantis AU - Anastasia D. Pournara AU - Antonios G. Hatzidimitriou AU - Manolis J. Manos AU - Giannis S. Papaefstathiou AU - Theodore Lazarides JO - Polyhedron PY - 2018 VL - 153 TODO - null SP - 173--180 PB - ELSEVIER BV SN - 0277-5387 TODO - 10.1016/j.poly.2018.07.010 TODO - null TODO - 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. ER -