Release Time:2019-03-09  Hits:

Indexed by: Journal Papers

Date of Publication: 2015-11-01

Journal: INORGANICA CHIMICA ACTA

Included Journals: Scopus、SCIE

Volume: 438

Page Number: 153-159

ISSN: 0020-1693

Key Words: Framework; Bilayer; Hexa-carboxylates; Tetra-carboxylates; Microporous

Abstract: New asymmetric tetra-carboxylates ligand, 2,2'-((6-chloro-1,3,5-triazine-2,4-diyl)bis(azanediyl)) diterephthalic acid (H4L1) and hexa-carboxylates ligand, 2,2',2 ''-((1,3,5-triazine-2,4,6-triyl)(azanediyl))-triterephthalic acid (H6L2), were designed and used for the assemble reactions with Cd2+ ions. [Cd-2(L-1) (H2O)(2)]center dot 2.5DMSO center dot 2H(2)O (1) and (Me2NH2)(9)(H3O)(2)[Cd2Cl3(L-2)(2)]center dot 5H(2)O (2) have been synthesized and structurally characterized. Single crystal X-ray analysis show that compound 1 bears a 2D neutral (4, 8)-net based on 3-connected {Cd-2} nodes and 3-connected spacers. 2 is the first bilayer MOFs pillared by monatomic Cl linker and its structure is built of 4-connected single metal nodes and 3-connected spacers. The topology of the resulted (3, 4)-connected anionic framework could be described as (6(3))(6(6)) (Schlafli symbol). N-2 sorption isotherm of 2 shows typical type I behavior with BET surface area of 599 m(2) g(-1) and a micropore volume of 0.2345 cm(3) g(-1). Luminescent analysis indicates both compounds exhibit linker-localized emission. Furthermore, infrared (IR), thermogravimetric analyses (TGA) properties of the compounds were also investigated. (C) 2015 Elsevier B.V. All rights reserved.