TY - JOUR
T1 - Carboxylate-Assisted Assembly of Zinc and Cadmium Coordination Complexes of 1,3,5-Tri-4-pyridyl-1,2-ethenylbenzene
T2 - Structures and visible-light-induced photocatalytic degradation of Congo red in water
AU - Zhang, Jian Guo
AU - Gong, Wei Jie
AU - Guan, Yu Song
AU - Li, Hong Xi
AU - Young, David James
AU - Lang, Jian Ping
N1 - Publisher Copyright:
© 2018 American Chemical Society.All rights reserved.
PY - 2018/10/3
Y1 - 2018/10/3
N2 - Solvothermal reactions of zinc and cadmium nitrates with 1,3,5-tri-4-pyridyl-1,2-ethenylbenzene (tpeb) in the presence of various carboxylic acids including 4-iodobenzoic acid (4-HIBA), benzene-1,4dicarboxylic acid (1,4-H 2 BDC), 2,5-furandicarboxylic acid (2,5-H 2 FDC), 2,5-dibromoterephthalic acid (2,5-H 2 DBTPA), 1,2-cyclohexane-dicarboxylic acid (1,2-H 2 CHDC), and 1,5-pentanedioic acid (1,5-H 2 PDC) gave rise to eight coordination complexes, viz, [Zn(tpeb) 2 (4IBA) 2 ]·2H 2 O (1), {[Cd(NO 3 )(tpeb)(4-IBA)]·H 2 O} n (2), {[Cd 2 (NO 3 ) 2 (tpeb) 2 (1,4-BDC)]} n (3), {[Cd 2 (tpeb) 2 (2,5-FDC) 2 ]·2H 2 O} n (4), [Cd(tpeb)(2,5-DBTPA) 2 ] n (5), {[Cd 2 (H 2 O) 2 (tpeb) 2 (1,2-CHDC) 2 ]·H 2 O} n (6), [Zn(tpeb)(1,2-CHDC)] n (7), and {[Zn(tpeb)(1,5-PDC)]·H 2 O} n (8). Compound 1 is a discrete mononuclear complex with its Zn(II) center coordinated by two pairs of tpeb and 4-IBA ligands. Compound 2 has a 2D waterfall-like network constructed from bridging [Cd(NO 3 )(4-IBA)] units with tpeb ligands. Compounds 3, 4, and 5 contain similar 1D [Cd(tpeb)] n chains, which are linked by 1,4-BDC, 2,5-FDC, and 2,5-DBTPA bridges, respectively, forming either 2D (2 and 3) networks or a 3D (4) framework. Compound 6 holds a 2D wavelike layer structure in which dimeric [Cd 2 (H 2 O) 2 (1,2-CHDC) 2 ] fragments are connected by two couples of tpeb ligands. Compounds 7 and 8 contain similar 2D fish-scale networks assembled from 1D chains of [Zn(1,2-CHDC)] n or [Zn(1,5PDC)] n bridged by tpeb ligands. Compound 6, as a representative sample, has larger absorption in the visible light region, and can be employed to efficiently degrade Congo red in water without additional oxidizing or reducing reagents upon visible light irradiation. This photocatalyst could be recycled at least five times without evident loss of its catalytic efficiency.
AB - Solvothermal reactions of zinc and cadmium nitrates with 1,3,5-tri-4-pyridyl-1,2-ethenylbenzene (tpeb) in the presence of various carboxylic acids including 4-iodobenzoic acid (4-HIBA), benzene-1,4dicarboxylic acid (1,4-H 2 BDC), 2,5-furandicarboxylic acid (2,5-H 2 FDC), 2,5-dibromoterephthalic acid (2,5-H 2 DBTPA), 1,2-cyclohexane-dicarboxylic acid (1,2-H 2 CHDC), and 1,5-pentanedioic acid (1,5-H 2 PDC) gave rise to eight coordination complexes, viz, [Zn(tpeb) 2 (4IBA) 2 ]·2H 2 O (1), {[Cd(NO 3 )(tpeb)(4-IBA)]·H 2 O} n (2), {[Cd 2 (NO 3 ) 2 (tpeb) 2 (1,4-BDC)]} n (3), {[Cd 2 (tpeb) 2 (2,5-FDC) 2 ]·2H 2 O} n (4), [Cd(tpeb)(2,5-DBTPA) 2 ] n (5), {[Cd 2 (H 2 O) 2 (tpeb) 2 (1,2-CHDC) 2 ]·H 2 O} n (6), [Zn(tpeb)(1,2-CHDC)] n (7), and {[Zn(tpeb)(1,5-PDC)]·H 2 O} n (8). Compound 1 is a discrete mononuclear complex with its Zn(II) center coordinated by two pairs of tpeb and 4-IBA ligands. Compound 2 has a 2D waterfall-like network constructed from bridging [Cd(NO 3 )(4-IBA)] units with tpeb ligands. Compounds 3, 4, and 5 contain similar 1D [Cd(tpeb)] n chains, which are linked by 1,4-BDC, 2,5-FDC, and 2,5-DBTPA bridges, respectively, forming either 2D (2 and 3) networks or a 3D (4) framework. Compound 6 holds a 2D wavelike layer structure in which dimeric [Cd 2 (H 2 O) 2 (1,2-CHDC) 2 ] fragments are connected by two couples of tpeb ligands. Compounds 7 and 8 contain similar 2D fish-scale networks assembled from 1D chains of [Zn(1,2-CHDC)] n or [Zn(1,5PDC)] n bridged by tpeb ligands. Compound 6, as a representative sample, has larger absorption in the visible light region, and can be employed to efficiently degrade Congo red in water without additional oxidizing or reducing reagents upon visible light irradiation. This photocatalyst could be recycled at least five times without evident loss of its catalytic efficiency.
UR - http://www.scopus.com/inward/record.url?scp=85053333629&partnerID=8YFLogxK
U2 - 10.1021/acs.cgd.8b01040
DO - 10.1021/acs.cgd.8b01040
M3 - Article
AN - SCOPUS:85053333629
SN - 1528-7483
VL - 18
SP - 6172
EP - 6184
JO - Crystal Growth and Design
JF - Crystal Growth and Design
IS - 10
ER -