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REI5O14 (RE=Y and Gd): Promising SHG Materials Featuring the Semicircle‐Shaped I5O143− Polyiodate Anion.
- Source :
- Angewandte Chemie International Edition; 8/19/2019, Vol. 58 Issue 34, p11666-11669, 4p
- Publication Year :
- 2019
-
Abstract
- The first examples of rare‐earth polyiodates, namely, REI5O14 (RE=Y and Gd), have been prepared by hydrothermal reactions of RE2O3 and H5IO6 in H3PO4 (≥85 wt % in H2O), with extremely high yields (>95 %). They crystalize in the polar space group Cm and feature a brand‐new semicircle‐shaped [I5O14]3− pentameric polyiodate anion composed of two IO3 and three IO4 polyhedra. Remarkably, both compounds exhibit very large second‐harmonic generation (SHG) signals (14× and 15×KH2PO4 (KDP) upon 1064 nm laser radiation for Y and Gd compounds, respectively). Our work shows that the hydrothermal reaction in a phosphoric acid medium facilitates the formation of rare‐earth polyiodates. [ABSTRACT FROM AUTHOR]
- Subjects :
- GADOLINIUM
ANIONS
PHOSPHORIC acid
MATERIALS
Subjects
Details
- Language :
- English
- ISSN :
- 14337851
- Volume :
- 58
- Issue :
- 34
- Database :
- Complementary Index
- Journal :
- Angewandte Chemie International Edition
- Publication Type :
- Academic Journal
- Accession number :
- 137988115
- Full Text :
- https://doi.org/10.1002/anie.201904383