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Pb@Pb8Basket-like-Cluster-Based Lead Tellurate–Nitrate Kleinman-Forbidden Nonlinear-Optical Crystal: Pb9Te2O13(OH)(NO3)3
- Source :
- Inorganic Chemistry; July 2017, Vol. 56 Issue: 14 p7900-7906, 7p
- Publication Year :
- 2017
-
Abstract
- The first lead tellurate–nitrate nonlinear-optical (NLO) crystal, Pb9Te2O13(OH)(NO3)3, featuring a 3D anionic diamondlike toplogical structural motif formulated as [Pb9O13]8–constructed by unique nonanuclear basket-shaped Pb@Pb8O14clusters has been hydrothermally achieved, in which the Pb@Pb8O14cluster shows a core–shell structure with one PbO10polyhedron enclosed by eight PbOx(x= 3 and 4) polyhedera via edge and face sharing. The hexavalent Te in TeO5(OH) octahedra is linked to a [Pb9O13]8–cluster to form a rare [Pb9Te2O13(OH)]3+cationic framework. The compound demonstrates a powder second-harmonic-generation (SHG) response of about 1.2 times that of KH2PO4(KDP) as well as a wide transparency range. Calculations on the local dipole moment and SHG coefficient reveal that the net polarization is zero because of a Kleinman-forbidden point group. Further analysis shows that the SHG response results from structure-induced variations by thermal vibrations of the lattice rather than the intrinsic dipole moment, which offers another insight on the design of new NLO materials.
Details
- Language :
- English
- ISSN :
- 00201669 and 1520510X
- Volume :
- 56
- Issue :
- 14
- Database :
- Supplemental Index
- Journal :
- Inorganic Chemistry
- Publication Type :
- Periodical
- Accession number :
- ejs42634736
- Full Text :
- https://doi.org/10.1021/acs.inorgchem.7b00647