Issue 12, 2020

Proton-conducting layered structures based on transition metal oxo-clusters supported by Sb(iii) tartrate scaffolds

Abstract

Two transition metal–antimony oxo-cluster based compounds, H5{MCd(H2O)6[M(H2O)3Co3SbVSbIII6(μ3-O)8(L-tta)6]}·7H2O (1) (M = Cd0.5 + Co0.5) and H3K5(H2O)11{Cd(H2O)4[Cd(H2O)Fe4Cd2Sb6(μ4-O)5(μ3-O)3(L-tta)6][Cd(H2O)2Fe4Cd2Sb6(μ4-O)4(μ3-O)4(L-tta)6][Cd(H2O)2Fe4Cd2Sb6(μ4-O)4(μ3-O)4(L-tta)6Cd(H2O)5]}·17H2O (2) (L-H4tta = L-tartaric acid) were hydrothermally synthesized and characterized. Compound 1 features a [MCo3SbVSbIII6(μ3-O)8(L-tta)6(H2O)3]9− cluster, while compound 2 contains three types of clusters, namely, [Cd(H2O)Fe4Cd2Sb6(μ4-O)5(μ3-O)3(L-tta)6]4−, [Cd(H2O)2Fe4Cd2Sb6(μ4-O)4(μ3-O)4(L-tta)6]4− and [Cd(H2O)2Fe4Cd2Sb6(μ4-O)4(μ3-O)4(L-tta)6Cd(H2O)5]2−. All the clusters are of sandwich-type with {Sb3(μ3-O)(L-tta)} scaffolds on the top and bottom. The Cd (and M in 1) ions interconnect the clusters into layered structures in both compounds. To the best of our knowledge, this is the first report of transition metal–antimony oxo-clusters that simultaneously contain the first-row and second-raw transition metal ions, and compound 1 represents the first example of such type of clusters that contain Sb(V). The two compounds exhibit proton conductivity with the values of 2.43 × 10−3 and 2.95 × 10−3 S cm−1 at 85 °C under 98% relative humidity, respectively.

Graphical abstract: Proton-conducting layered structures based on transition metal oxo-clusters supported by Sb(iii) tartrate scaffolds

Supplementary files

Article information

Article type
Paper
Submitted
08 Nov. 2019
Accepted
26 Nov. 2019
First published
26 Nov. 2019

Dalton Trans., 2020,49, 3849-3855

Proton-conducting layered structures based on transition metal oxo-clusters supported by Sb(III) tartrate scaffolds

W. Ma, B. Hu, K. Jing, Z. Li, J. Jin, S. Zheng and X. Huang, Dalton Trans., 2020, 49, 3849 DOI: 10.1039/C9DT04333K

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