Issue 30, 2010

Investigating metal size effects in the Ln/As/Se/amine (Ln = lanthanide excluding Pm, amine = en, dien, en+trien) systems: solvothermal syntheses and characterizations of lanthanide selenidoarsenates

Abstract

Three solvothermal systems Ln/As/Se/en, Ln/As/Se/dien and Ln/As/Se/(en+trien) (Ln = lanthanide excluding Pm, en = ethylenediamine, dien = diethylenetriamine, trien = triethylenetetramine) were investigated in detail across the lanthanide series, and ternary lanthanide selenidoarsenates [Ln(en)3(H2O)(μ-η11-AsSe4)] (Ln = La(1a), Ce(1b), Nd(1c)), [Ln(en)4]AsSe4·0.5en (Ln = Sm(1d), Gd(1e), Dy(1f)), [Ln(dien)2(μ-η12-AsSe4)] (Ln = La(2a), Ce(2b), Pr(2c)), [Ln(en)(trien)(μ-η12-AsSe4)] (Ln = La(3a), Nd(3b)) and [Sm(en)(trien)(η2-AsSe4)] (3c) were prepared. Systematic investigations of the three systems clarify the relationship between the molecular structures of the synthetic lanthanide selenidoarsenates and the metal size evolution of the lanthanide series. Meanwhile, the coordination modes of the [AsSe4]3 tetrahedral anion to the same lanthanide ion are dependent on the denticity of ethylene polyamine as the second ligand. The lanthanide selenidoarsenates exhibit semiconducting properties with Eg between 2.15 and 2.31 eV.

Graphical abstract: Investigating metal size effects in the Ln/As/Se/amine (Ln = lanthanide excluding Pm, amine = en, dien, en+trien) systems: solvothermal syntheses and characterizations of lanthanide selenidoarsenates

Supplementary files

Article information

Article type
Paper
Submitted
27 Feb 2010
Accepted
12 May 2010
First published
24 Jun 2010

Dalton Trans., 2010,39, 7066-7072

Investigating metal size effects in the Ln/As/Se/amine (Ln = lanthanide excluding Pm, amine = en, dien, en+trien) systems: solvothermal syntheses and characterizations of lanthanide selenidoarsenates

J. Wang, Y. Pan, J. Chen, J. Gu, Y. Zhang and D. Jia, Dalton Trans., 2010, 39, 7066 DOI: 10.1039/C0DT00040J

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