Issue 42, 2021

Cobalt(ii) coordination polymers constructed from bis(N-pyrid-3-ylmethyl)adipoamide and polycarboxylic acids: reversible structural transformation upon proton delivery and removal

Abstract

Hydrothermal reactions of cobalt(II) salts and bis(N-pyrid-3-ylmethyl)adipoamide (L) with various polycarboxylic acids in water and NaOH solutions afforded {[Co(L)0.5(1,3,5-HBTC)(H2O)]·H2O}n (1,3,5-H3BTC = benzene-1,3,5-tricarboxylic acid), 1, {[Co1.5(L)1.5(1,3,5-BTC)(H2O)4]·4H2O}n, 2, [Co(L)(5-tert-IPA)(H2O)2]n (5-tert-H2IPA = 5-tert-butylbenzene-1,3-dicarboxylic acid), 3, and {[Co(L)(5-NH2-IPA)]·H2O}n (5-NH2-H2IPA = 5-aminoisophthalic acid), 4, respectively, which have been structurally characterized by using single crystal X-ray crystallography. Complexes 1–3 display two-dimensional (2D) networks, showing bey, bex and hcb topologies, respectively, while complex 4 exhibits a three-dimensional (3D) framework with the xww topology (standard representation), which can be further simplified as the tfz-d topology (cluster representation), revealing the structure-directing roles of the substituent groups on the polycarboxylate ligands. Reversible structural transformation upon delivery and removal of H+ in 1 and 2 is observed, which can be ascribed to the various bonding modes of the benzene-1,3,5-tricarboxylate anions and the flexible nature of L.

Graphical abstract: Cobalt(ii) coordination polymers constructed from bis(N-pyrid-3-ylmethyl)adipoamide and polycarboxylic acids: reversible structural transformation upon proton delivery and removal

Supplementary files

Article information

Article type
Paper
Submitted
08 ספט 2021
Accepted
01 אוק 2021
First published
01 אוק 2021

CrystEngComm, 2021,23, 7471-7478

Cobalt(II) coordination polymers constructed from bis(N-pyrid-3-ylmethyl)adipoamide and polycarboxylic acids: reversible structural transformation upon proton delivery and removal

J. Hu, Y. Liu and J. Chen, CrystEngComm, 2021, 23, 7471 DOI: 10.1039/D1CE01216A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements