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Title: Hydrothermal synthesis, crystal structures and properties of two alkaline earth metal coordination polymers with 3D pillared open framework structures based on trifunctional aromatic ligands
Authors: Guan, Lei
Wang, Xin
Wang, Ying
Keywords: Hydrothermal synthesis;Open framework;Crystal structure;Coordination polymer
Issue Date: Jun-2019
Publisher: NISCAIR-CSIR, India
Abstract: Two novel alkaline earth metal coordination polymers, [Sr(HL)(H2O)]n (1) and [Ba(HL)(H2O)1.5]n (2) (NaH2L = 5-sulfoisophthalic monosodium salt), have been synthesized by hydrothermal reactions. The central strontium and barium atoms have been eight- and nine-coordinate with the distorted bicapped trigonal prism and monocapped square anti-prism, respectively. The whole HL2- ligands act as hexadentate linkers to generate the homometallic 3D (4, 12)-type lattice-like topologies with the nonequivalent six-connected nodes based on central metal ions. In the solid state, both 1 and 2 show blue photoluminescence with the maximum emission intensities at 398 and 471 nm upon excitation at 315 nm, respectively.
Page(s): 629-636
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.58A(06) [June 2019]

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