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Li Y, Ok KM. Crystal clear: unveiling giant birefringence in organic-inorganic cocrystals. Chem Sci 2024; 15:10193-10199. [PMID: 38966371 PMCID: PMC11220600 DOI: 10.1039/d4sc02569e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Accepted: 05/25/2024] [Indexed: 07/06/2024] Open
Abstract
Coplanar groups with large anisotropic polarizability are suitable as birefringence-active groups for investigating compounds with significant birefringence. In this study, the organic coplanar raw reagent, o-C5H5NO (4HP), was selected as an individual complement. Utilizing the cocrystal engineering strategy, we successfully designed two cocrystals: [LiNO3·H2O·4HP]·4HP (Li-4HP2) and [Mg(NO3)2·6H2O]·(4HP)2 (Mg-4HP), and one by-product: LiNO3·H2O·4HP (Li-4HP), which were grown using a mild aqua-solution method. The synergy of the coplanar groups of NO3 - and 4HP in the structures resulted in unexpectedly large birefringence values of 0.376-0.522@546 nm. Furthermore, the compounds exhibit large bandgaps (4.08-4.51 eV), short UV cutoff edges (275-278 nm), and favorable growth habits, suggesting their potential as short-wave UV birefringent materials.
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Affiliation(s)
- Yang Li
- Department of Chemistry, Sogang University Seoul 04107 Republic of Korea
| | - Kang Min Ok
- Department of Chemistry, Sogang University Seoul 04107 Republic of Korea
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2
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Li PF, Hu CL, Mao JG, Kong F. Pb 2(SeO 3)(SiF 6): the first selenite fluorosilicate with a wide bandgap and large birefringence achieved through perfluorinated group modification. Chem Sci 2024; 15:7104-7110. [PMID: 38756790 PMCID: PMC11095375 DOI: 10.1039/d4sc01376j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Accepted: 04/05/2024] [Indexed: 05/18/2024] Open
Abstract
Birefringent crystals serve as the core elements of polarizing optical devices. However, the inherent challenge of balancing bandgap and birefringence poses a significant hurdle in designing crystals with excellent overall performance. In this study, we propose a novel approach, namely modification with perfluorinated groups, to achieve dual enhancement of the bandgap and birefringence of selenite materials. We have successfully synthesized the first selenite fluorosilicate, namely, Pb2(SeO3)(SiF6). This compound exhibits a three-dimensional structure composed of two-dimensional lead selenite layers bridged by SiF6 octahedrons. Notably, by introducing a perfluorinated SiF6 group, the bandgap of the lead selenite compound has been expanded to 4.4 eV. Furthermore, Pb2(SeO3)(SiF6) demonstrates a large birefringence (0.161 @ 546 nm), surpassing most of the selenite compounds with a bandgap larger than 4.2 eV. Theoretical calculations suggest that the large birefringence of Pb2(SeO3)(SiF6) can be attributed to the synergistic effects of SeO3, PbO4 and PbO3F4 polyhedrons. Our research not only pioneers a new system for selenite materials, enriching the diversity of selenite structures, but also provides a design methodology for obtaining wide bandgap birefringent selenite.
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Affiliation(s)
- Peng-Fei Li
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou 350002 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Chun-Li Hu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou 350002 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Jiang-Gao Mao
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou 350002 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Fang Kong
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou 350002 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
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Li W, Wang J, Liu L, Huang C, Ding Y, Zhu M, Tian J, Qi H, Chu Y, Xu J. Na 3K 6(CO 3) 3(NO 3) 2X·6H 2O (X = NO 3, Cl, Br): Exploring High-Performance UV Birefringent Crystals Induced by Coplanar π-Conjugated CO 3 and NO 3 Groups. Inorg Chem 2024; 63:8408-8417. [PMID: 38650459 DOI: 10.1021/acs.inorgchem.4c00844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
Planar π-conjugated groups, like CO3, NO3, and BO3 triangles, are ideal functional units for designing birefringent materials due to their large optical anisotropy and wide band gap. The key point for designing birefringent crystals is to select appropriate functional building blocks (FBBs) and the proper arrangement mode. It is well known that the substitution strategy has proven to be a promising and accessible approach. In this work, alkali metals were chosen to regulate and control two different π-conjugated groups, CO3 and NO3, to build new compounds with large birefringence. Subsequently, three new compounds, Na3K6(CO3)3(NO3)2X·6H2O (X = NO3, Cl, Br), were successfully synthesized using the hydrothermal method. The aliovalent substitution between the [NO3]- anionic group and halogen anions [Cl]-/[Br]- has been achieved in these compounds. Na3K6(CO3)3(NO3)2X·6H2O feature the well-coplanar CO3 and NO3 groups in their crystal structure. This coplanar arrangement mode may effectively enhance the anisotropic polarizability of Na3K6(CO3)3(NO3)2X·6H2O. And their experimental birefringence can reach 0.094-0.131 at 546 nm. Diffuse reflectance spectra demonstrate that these compounds exhibit short ultraviolet (UV) absorption edges of ∼235 nm. Meanwhile, Na3K6(CO3)3(NO3)2X·6H2O also have an easily grown capacity under facile conditions. This work not only reports three new potential UV birefringent crystals but also provides a strategy to make the π-conjugated MO3 group coplanar.
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Affiliation(s)
- Wencong Li
- Institute of Crystal Growth, School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Junbo Wang
- Institute of Crystal Growth, School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Lili Liu
- Institute of Crystal Growth, School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Chunmei Huang
- Chongqing Key Laboratory of Inorganic Functional Materials, College of Chemistry, Chongqing Normal University, Chongqing 401331, China
| | - Yanyan Ding
- Institute of Crystal Growth, School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - MengMeng Zhu
- Institute of Crystal Growth, School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Jindan Tian
- Institute of Crystal Growth, School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Haixin Qi
- School of Materials Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China
| | - Yaoqing Chu
- Institute of Crystal Growth, School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Jiayue Xu
- Institute of Crystal Growth, School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, China
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Zhu M, Wang J, Hou L, Yuan Y, Liu L, Chu Y, Huang C. AX·(H 2SeO 3) n (A = K, Cs; X = Cl, Br; n = 1, 2): A Series of Ionic Cocrystals as Promising UV Birefringent Materials with Large Birefringence and Wide Band Gap. Inorg Chem 2024; 63:2289-2297. [PMID: 38237039 DOI: 10.1021/acs.inorgchem.3c04371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2024]
Abstract
The design and syntheses of new birefringent crystals will be of great importance in commercial applications and materials science. A series of ultraviolet (UV) birefringent crystals, AX·(H2SeO3)n (A = K, Cs; X = Cl, Br; n = 1, 2), with large sizes up to 23 × 6 × 3 mm3, was successfully synthesized by simple aqueous solution method. These four compounds belong to three different space groups. Isomorphic KCl·(H2SeO3)2 and CsCl·(H2SeO3)2 crystallize in the P 1 ¯ space group, while CsBr·(H2SeO3)2 and CsCl·H2SeO3 crystallize in the P21/m and P21/c space groups, respectively. They exhibit cocrystal structures composed of [2(H2SeO3)]∞ and [AX]∞ frameworks, ingeniously inheriting the large optical anisotropy of selenite and the wide band gap of alkali metal halide. And it proves that these compounds indeed possess large birefringence (0.1-0.17 at 532 nm) and short UV cutoff edges (227-239 nm), achieving a balance of optical properties. This research affords a simple and viable strategy for the design and syntheses of new UV birefringent crystals. Besides, it is also found that the n value and ionic size (A and X ions) have important influences on the crystal structures and optical properties of AX·(H2SeO3)n. And this will promote further understanding of the alkali metal halide selenite family.
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Affiliation(s)
- Mengmeng Zhu
- Institute of Crystal Growth, School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Junbo Wang
- Institute of Crystal Growth, School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Lei Hou
- Institute of Crystal Growth, School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Yiwen Yuan
- Institute of Crystal Growth, School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Lili Liu
- Institute of Crystal Growth, School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Yaoqing Chu
- Institute of Crystal Growth, School of Materials Science and Engineering, Shanghai Institute of Technology, Shanghai 201418, China
| | - Chunmei Huang
- Chongqing Key Laboratory of Inorganic Functional Materials, College of Chemistry, Chongqing Normal University, Chongqing 401331, China
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Feng Q, Gao Z, Hou K, Wang J, Du H, Jing Q. Synthesis, structures and properties of two new selenite optical materials: K 2Zn 3Se 4O 12 and K 4Zn 3V 4Se 2O 19. Dalton Trans 2023; 52:16920-16926. [PMID: 37927065 DOI: 10.1039/d3dt03130f] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2023]
Abstract
Two new selenites, K2Zn3Se4O12 (compound 1) and K4Zn3V4Se2O19 (compound 2), have been successfully synthesized by solid-state reactions in vacuum tubes. Compound 1 consists of a three-dimensional (3D) framework with [SeO3] triangular pyramids and [ZnO4] tetrahedra in the monoclinic space group P21/c (No. 14). Compound 1's cut-off edge is below 344 nm, based on its UV-Vis-NIR diffuse reflectance studies, and theoretical calculations indicate a birefringence of around 0.043 at 1064 nm. The two-dimensional layer of compound 2, in contrast, is made up of [SeO3] triangular pyramids, [ZnO4] tetrahedra, and [V4O13] tetrahedra. It crystallizes in the monoclinic space group C2/c (No. 15). Its UV-Vis-NIR diffuse reflectance studies demonstrate that the compound's cut-off edge is lower than 330 nm.
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Affiliation(s)
- Qiuyuan Feng
- College of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi, 830054, P. R. China.
| | - Zhixia Gao
- College of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi, 830054, P. R. China.
| | - Ketian Hou
- School of Physical Science and Technology, Xinjiang University, Urumqi, Xinjiang 830017, P. R. China.
| | - Jialong Wang
- School of Physical Science and Technology, Xinjiang University, Urumqi, Xinjiang 830017, P. R. China.
| | - Hong Du
- College of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi, 830054, P. R. China.
| | - Qun Jing
- School of Physical Science and Technology, Xinjiang University, Urumqi, Xinjiang 830017, P. R. China.
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Charkin DO, Nazarchuk EV, Dmitriev DN, Grishaev VY, Omelchenko TA, Spiridonova DV, Siidra OI. Protonated Organic Diamines as Templates for Layered and Microporous Structures: Synthesis, Crystal Chemistry, and Structural Trends among the Compounds Formed in Aqueous Systems Transition Metal Halide or Nitrate-Diamine-Selenious Acid. Int J Mol Sci 2023; 24:14202. [PMID: 37762505 PMCID: PMC10532228 DOI: 10.3390/ijms241814202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 08/23/2023] [Accepted: 09/12/2023] [Indexed: 09/29/2023] Open
Abstract
Systematic studies of crystalline compounds formed in aqueous systems containing aliphatic diamines, divalent transition metal halides, and selenious acid resulted in the discovery of a large family of new complex species corresponding to several new structure types. With ethylenediamine (en), layered (enH2)[M(HSeO3)2X2] compounds are the most commonly formed species which constitute a significant contribution to the family of layered hydrogen selenites containing neutral [M(HSeO3)2] (M = Mg, Mn, Co, Ni, Cu, Zn, Cd) 2D building blocks. In contrast to some previous suggestions, piperazine (pip), as well as its homologue N-methylpiperazine, mostly give rise to quite different, sometimes more complex, structures of varied dimensionality while the (pipH2)[M(HSeO3)2X2] compounds are formed only with M = Cu and Cd. In addition, metal-, halide-, or selenium-free by-product species are observed. The SeIV can be present in a multitude of forms, including H2SeO3, HSeO3-, SeO32-, and Se2O52-, reflecting amazing adaptability to the shape of the templating cations.
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Affiliation(s)
- Dmitri O. Charkin
- Inorganic Chemistry Division, Chemistry Department, Moscow State University, Vorobievy Gory, 1-3, 199991 Moscow, Russia; (D.O.C.); (D.N.D.); (T.A.O.)
| | - Evgeny V. Nazarchuk
- Department of Crystallography, Institute of Earth Sciences, St. Petersburg State University, 199034 St. Petersburg, Russia; (E.V.N.); (V.Y.G.)
| | - Dmitri N. Dmitriev
- Inorganic Chemistry Division, Chemistry Department, Moscow State University, Vorobievy Gory, 1-3, 199991 Moscow, Russia; (D.O.C.); (D.N.D.); (T.A.O.)
| | - Vasili Yu. Grishaev
- Department of Crystallography, Institute of Earth Sciences, St. Petersburg State University, 199034 St. Petersburg, Russia; (E.V.N.); (V.Y.G.)
| | - Timofey A. Omelchenko
- Inorganic Chemistry Division, Chemistry Department, Moscow State University, Vorobievy Gory, 1-3, 199991 Moscow, Russia; (D.O.C.); (D.N.D.); (T.A.O.)
| | - Darya V. Spiridonova
- X-ray Diffraction Resource Center, St. Petersburg State University, 199034 St. Petersburg, Russia;
| | - Oleg I. Siidra
- Department of Crystallography, Institute of Earth Sciences, St. Petersburg State University, 199034 St. Petersburg, Russia; (E.V.N.); (V.Y.G.)
- Kola Science Center, Russian Academy of Sciences, Fersman Str. 14, 184209 Apatity, Russia
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