NaK5Zn2(B5O10)2 and β-K3ZnB5O10: Two Zincoborates with Deep-UV Cutoff Edge
Authors:
- 10 October 2022
- journal article
- research article
- Published by American Chemical Society (ACS) in Inorganic Chemistry
- Vol. 61 (42) , 16533-16538
Abstract
The design of new materials is important for the exploration of compounds with good properties. Borates have attracted extensive attention because of their excellent properties and rich structures. Herein, two new zincoborates NaK5Zn2(B5O10)2 and β-K3ZnB5O10 with fundamental building blocks (FBBs) as the isolated [B5O10] group were synthesized. The polymerization degree of B-O units is regulated by cations and [ZnO4] polyhedra, and the structural arrangement is further affected, to improve the properties. The transmittance spectra show that NaK5Zn2(B5O10)2 and β-K3ZnB5O10 have deep ultraviolet (UV) cutoff edge (183 nm, 181 nm), and theoretical calculations indicate their birefringence is 0.012 and 0.029 at 1064 nm, respectively. Indicating that NaK5Zn2(B5O10)2 has the potential to be used as a deep-UV waveplate material. More importantly, we analyzed the reason why the birefringence of β-K3ZnB5O10 is twice that of NaK5Zn2(B5O10)2 from the perspective of structure. These results are important for the design of optical materials.Keywords
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