(N 2 H 6 )[HPO 3 F] 2 : maximizing the optical anisotropy of deep-ultraviolet fluorophosphates

Although phosphates are a rich source of deep-ultraviolet optical materials, the realization of large optical anisotropy in them still remains a challenge because of the small polarizability anisotropy of [PO ] units. Inspired by the fluoridation strategy and hydrogen bond interaction, a new metal-f...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2022-05, Vol.58 (37), p.5594-5597
Main Authors: Qiu, Haotian, Li, Fuming, Jin, Congcong, Lu, Juanjuan, Yang, Zhihua, Pan, Shilie, Mutailipu, Miriding
Format: Article
Language:English
Subjects:
Anisotropy
Birefringence
Hydrogen bonds
Microscopes
Optical materials
Optics
Phosphates
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Summary:Although phosphates are a rich source of deep-ultraviolet optical materials, the realization of large optical anisotropy in them still remains a challenge because of the small polarizability anisotropy of [PO ] units. Inspired by the fluoridation strategy and hydrogen bond interaction, a new metal-free monofluorophosphate, (N H )[HPO F] , was synthesized, which exhibits a large birefringence (cal. 0.077) and wide band gap (∼6.51 eV). Such a large birefringence in (N H )[HPO F] sets a new record among available fluorophosphates, and the [HPO F] unit is theoretically confirmed to be a new birefringence-active unit.
ISSN:1359-7345
1364-548X
DOI:10.1039/d2cc01035f