Jump to main content
Jump to site search


Metal/N-donor-induced versatile structures and properties of seven 0D→3D complexes based on dpq/dppz and O-bridged tricarboxylate: fluorescent and electrochemical behaviors

Abstract

To investigate the effect of the metal ions on the assembly of complexes derived from a semirigid tripodal carboxylic acid 5-(4'-carboxylphenoxy) isophthalic acid (H3L) and two rigid chelating terminal N-donor ligands dipyrazino[2, 3-d: 2′ 3′-f]quinoxaline (dpq), dipyrido[3, 2-a: 2', 3'-c]phenazine (dppz), seven 0D→3D complexes of [Cu(HL)(dpq)(H2O)2] (1), [Co(HL)(dpq)(H2O)]·H2O (2), [Ni3(L)2(dpq)3(H2O)4]·4H2O (3), [Zn(HL)(dpq)(H2O)]·H2O (4), [Cu2(L)(dppz)]·H2O (5), [Co(HL)(dppz)]·H2O (6) and [Ni3(L)2(dppz)3(H2O)3] (7) have been hydrothermally synthesized and structural characterized by IR, TG and X-ray single-crystal diffraction. Complex 1 is a 0D complex processing an unusual μ1-HL2– anion. Complex 2 features 1D single chain based on Co(II) ions with 6 coordinated mode. Complex 3 is the first (2,3,4)-connected 3D dpq-based framework derived from single/bimetallic mixed nodes with {83}2{84·122}{8} topology. Complex 4 is a 1D structure based on Zn(II) ions with 5 coordinated mode. Complex 5 can be described as a 2D (6,3)-c structure based on carboxyl-bridged Cu4 cores. Complex 6 is a 1D double chain derived from bimetallic nodes. Complex 7 exhibits a 2D double layer with the (2,2,3,3,4)-c nodes. The structural details of 1–7 were discussed. The solid-state luminescent properties of 1–7 and electrochemical properties of 1–3 have been investigated. The luminescent investigations show that 4 is an effective fluorescent probe for environmentally relevant Fe3+ ions. The electrochemical properties of carbon paste electrode modified by the complexes 1–3 (1-CPE, 2-CPE and 3-CPE) were studied. 1-CPE has good electrocatalytic activity toward the reduction of nitrite, bromate and hydrogen peroxide in solution.

Back to tab navigation

Supplementary files

Article information


Submitted
27 Nov 2019
Accepted
05 Jan 2020
First published
06 Jan 2020

CrystEngComm, 2020, Accepted Manuscript
Article type
Paper

Metal/N-donor-induced versatile structures and properties of seven 0D→3D complexes based on dpq/dppz and O-bridged tricarboxylate: fluorescent and electrochemical behaviors

G. Liu, S. Liang, Q. Li, J. Guo, N. Xu, X. Wang, Y. Li and B. Chen, CrystEngComm, 2020, Accepted Manuscript , DOI: 10.1039/C9CE01878F

Social activity

Search articles by author

Spotlight

Advertisements