Mixed X-Site Formate-Hypophosphite Hybrid Perovskites

Yue Wu; David M Halat; Fengxia Wei; Trevor Binford; Ieuan D Seymour; Michael W Gaultois; Sammy Shaker; John Wang; Clare P Grey; Anthony K Cheetham

doi:10.1002/chem.201803061

Mixed X-Site Formate-Hypophosphite Hybrid Perovskites

Chemistry. 2018 Aug 6;24(44):11309-11313. doi: 10.1002/chem.201803061. Epub 2018 Jul 13.

Authors

Yue Wu^{1

2}, David M Halat³, Fengxia Wei^{1

4}, Trevor Binford¹, Ieuan D Seymour³, Michael W Gaultois⁵, Sammy Shaker^{1

6}, John Wang², Clare P Grey³, Anthony K Cheetham^{1

2}

Affiliations

¹ Department of Materials Science and Metallurgy, University of Cambridge, Cambridge, CB3 0FS, UK.
² Department of Materials Science and Engineering, National University of Singapore, Singapore, 117574, Singapore.
³ Department of Chemistry, University of Cambridge, Cambridge, CB2 1EW, UK.
⁴ Institute of Materials Research and Wngineering, A*STAR, 2 Fusionopolis way, Innovis, Singapore, 138634, Singapore.
⁵ Leverhulme Research Centre for Functional Materials Design, The Materials Innovation Factory, Department of Chemistry, University of Liverpool, Liverpool, L7 3NY, UK.
⁶ Current address: David Geffen School of Medicine, University of California, 10833 Le Conte Ave, Los Angeles, CA, 90095, USA.

PMID: 29920832
DOI: 10.1002/chem.201803061

Abstract

Following the recent discovery of a new family of hybrid ABX₃ perovskites where X=(H₂ POO)^- (hypophosphite), this work reports a facile synthesis for mixed X-site formate perovskites of composition [GUA]Mn(HCOO)_3-x (H₂ POO)_x , with two crystallographically distinct, partially ordered intermediate phases with x=0.84 and 1.53, corresponding to ca. 30 and 50 mol % hypophosphite, respectively. These phases are characterised by single-crystal XRD and solid-state NMR spectroscopy, and their magnetic properties are reported.

Keywords: disordered structures; hybrid perovskite; metal-organic frameworks; paramagnetic NMR spectroscopy; perovskite phases.

MeSH terms

Calcium Compounds / chemistry*
Crystallography, X-Ray
Formates / chemistry*
Ligands
Magnets
Manganese Compounds / chemistry*
Models, Molecular
Molecular Structure
Oxides / chemistry*
Phosphinic Acids / chemistry*
Titanium / chemistry*

Substances

Calcium Compounds
Formates
Ligands
Manganese Compounds
Oxides
Phosphinic Acids
perovskite
Titanium