Premium
Construction of (3,8)‐connected three‐dimensional cobalt(II) and copper(II) coordination polymers with 1,3‐bis[(1,2,4‐triazol‐4‐yl)methyl]benzene and benzene‐1,3,5‐tricarboxylate ligands
Author(s) -
Zhang Ya-Qian,
Blatov Vladislav A.,
Lv Xiu-Xiu,
Tang Ding-Yi,
Qian Lin-Lu,
Li Ke,
Li Bao-Long
Publication year - 2019
Publication title -
acta crystallographica section c
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 17
ISSN - 2053-2296
DOI - 10.1107/s205322961900826x
Subject(s) - cobalt , benzene , copper , polymer , chemistry , coordination polymer , polymer chemistry , materials science , inorganic chemistry , organic chemistry
Coordination polymers (CPs) have been widely studied because of their diverse and adjustable topologies and wide‐ranging applications in luminescence, chemical sensors, magnetism, photocatalysis, gas adsorption and separation. In the present work, two coordination polymers, namely poly[(μ 5 ‐benzene‐1,3,5‐tricarboxylato‐κ 6 O 1 : O 1′ : O 3 : O 3 : O 5 , O 5′ ){μ 3 ‐1,3‐bis[(1,2,4‐triazol‐4‐yl)methyl]benzene‐κ 3 N : N ′: N ′′}di‐μ 3 ‐hydroxido‐dicobalt(II)], [Co 2 (C 9 H 3 O 6 )(OH)(C 12 H 12 N 6 )] n or [Co 2 (btc)(OH)(mtrb)] n , (1), and poly[[diaquabis(μ 3 ‐benzene‐1,3,5‐tricarboxylato‐κ 3 O 1 : O 3 : O 5 )bis{μ 3 ‐1,3‐bis[(1,2,4‐triazol‐4‐yl)methyl]benzene‐κ 3 N : N ′: N ′′}tetra‐μ 3 ‐hydroxido‐tetracopper(II)] monohydrate], {[Cu 4 (C 9 H 3 O 6 ) 2 (OH) 2 (C 12 H 12 N 6 ) 2 (H 2 O) 2 ]·H 2 O} n or {[Cu 4 (btc) 2 (OH) 2 (mtrb) 2 (H 2 O) 2 ]·H 2 O} n , (2), were synthesized by the hydrothermal method using 1,3‐bis[(1,2,4‐triazol‐4‐yl)methyl]benzene (mtrb) and benzene‐1,3,5‐tricarboxylate (btc 3− ). CP (1) exhibits a (3,8)‐coordinated three‐dimensional (3D) network of the 3,8T38 topological type, with a point symbol of {4,5,6} 2 {4 2 ·5 6 ·6 16 ·7 2 ·8 2 }, based on the tetranuclear hydroxide cobalt(II) cluster [Co 4 (μ 3 ‐OH) 2 ]. CP (2) shows a (3,8)‐coordinated tfz‐d topology, with a point symbol of {4 3 } 2 {4 6 ·6 18 ·8 4 }, based on the tetranuclear hydroxide copper(II) cluster [Cu 4 (μ 3 ‐OH) 2 ]. The different (3,8)‐coordinated 3D networks based on tetranuclear hydroxide–metal clusters of (1) and (2) are controlled by the different central metal ions [Co II for (1) and Cu II for (2)]. The thermal stabilities and solid‐state optical diffuse‐reflection spectra were measured. The energy band gaps ( E g ) obtained for (1) and (2) were 2.72 and 2.29 eV, respectively. CPs (1) and (2) exhibit good photocatalytic degradation of the organic dyes methylene blue (MB) and rhodamine B (RhB) under visible‐light irradiation.