1
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Gao Z, Feng Q, Lu J, Du H. K 2MgMoP 2O 10 and K 3Mg 2MoP 3O 14: two new molybdophosphates exhibiting different optical anisotropies induced by variable dimensionality of the anion framework. Dalton Trans 2024; 53:10686-10692. [PMID: 38864507 DOI: 10.1039/d4dt01026d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2024]
Abstract
By introducing the d0 metal cation Mo6+ into phosphates, two new molybdophosphates, K2MgMoP2O10 and K3Mg2MoP3O14, were synthesized by spontaneous crystallization, and their structures were determined by single-crystal X-ray diffraction. K2MgMoP2O10 shows a two-dimensional layer composed of the uncommon eight-membered ring [Mo2P2O16] formed by [MoO6] and [PO4], while K3Mg2MoP3O14 shows isolated [MoP3O14] clusters composed of [MoO5] and [PO4]. K2MgMoP2O10 and K3Mg2MoP3O14 have UV cut-off wavelengths of 277 and 271 nm, respectively, which are significantly shorter than those of most recently published molybdophosphates. To the best of our acknowledge, K2MgMoP2O10 exhibits the largest birefringence (a calculated value of 0.187 at 546 nm) among reported alkali metal or alkaline earth metal molybdophosphates, which provides a way to explore new birefringent materials. First-principles analysis of the electronic structure shows that the large birefringence of K2MgMoP2O10 mainly originates from the [MoO6] units.
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Affiliation(s)
- Zhixia Gao
- College of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi, 830054, P. R. China.
| | - Qiuyuan Feng
- College of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi, 830054, P. R. China.
| | - Juanjuan Lu
- Xinjiang Technical Institute of Physics & Chemistry, Chinese Academy of Sciences, Xinjiang Key Laboratory of Functional Crystal Materials, Urumqi 830011, China
| | - Hong Du
- College of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi, 830054, P. R. China.
- Xinjiang Key Laboratory of Energy Storage and Photoelectrocatalytic Materials, Urumqi, 830054, China
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2
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Hu M, Wang J, Tuerhong N, Zhang Z, Jing Q, Chen Z, Yang Y, Lee MH. Novel antimony phosphates with enlarged birefringence induced by lone pair cations. Dalton Trans 2024. [PMID: 38264854 DOI: 10.1039/d3dt03833e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2024]
Abstract
Phosphates, whose obvious disadvantage is the relatively small birefringence, can be overcome by the introduction of post-transition metal cations containing stereochemically active lone-pair electrons. In this paper, two new compounds were successfully explored in the A-Sb-P-O system, i.e. Cs2Sb3O(PO4)3 (CsSbPO) and (NH4)2Sb4O2(H2O)(PO4)2[PO3(OH)]2 (NH4SbPOH). Transmission spectra show that CsSbPO has a surprising transmission range with a UV cutoff edge of 213 nm. First-principles calculations show that both compounds have a wide band gap (5.02 eV for CsSbPO and 5.30 eV for NH4SbPOH) and enlarged birefringence (Δn = 0.034@1064 nm for CsSbPO and Δn = 0.045@1064 nm for NH4SbPOH). The results of real-space atom-cutting investigations show that the distorted [SbOx] polyhedra originating from the asymmetric lone pair electrons give the main contribution to the total birefringence and overcome the disadvantage of small birefringence of phosphates but maintain wide transition windows.
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Affiliation(s)
- Mei Hu
- Xinjiang Key Laboratory of Solid State Physics and Devices, School of Physical Science and Technology & Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education and Xinjiang Uyghur Autonomous Region, School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830017, China.
| | - Jialong Wang
- Xinjiang Key Laboratory of Solid State Physics and Devices, School of Physical Science and Technology & Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education and Xinjiang Uyghur Autonomous Region, School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830017, China.
| | - Nuerbiye Tuerhong
- Xinjiang Key Laboratory of Solid State Physics and Devices, School of Physical Science and Technology & Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education and Xinjiang Uyghur Autonomous Region, School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830017, China.
| | - Zhiyuan Zhang
- Xinjiang Laboratory of Phase Transitions and Microstructures in Condensed Matter Physics, College of Physical Science and Technology, Yili Normal University, Yining 835000, China
| | - Qun Jing
- Xinjiang Key Laboratory of Solid State Physics and Devices, School of Physical Science and Technology & Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education and Xinjiang Uyghur Autonomous Region, School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830017, China.
| | - Zhaohui Chen
- Xinjiang Key Laboratory of Solid State Physics and Devices, School of Physical Science and Technology & Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education and Xinjiang Uyghur Autonomous Region, School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830017, China.
| | - Yonglei Yang
- Urumqi No. 1 Senior High School, North Second Lane, Kanas Lake Road, Urumqi 830023, China
| | - Ming-Hsien Lee
- Department of Physics, Tamkang University, New Taipei City 25137, China
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3
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Hao X, Lin C, Luo M, Ye N. Sr(NH 2SO 3)(NO 3)·H 2O: An Ultraviolet Nonlinear Optical Material Exhibiting Strong Second-Harmonic Generation Response and Sufficient Birefringence. Inorg Chem 2023; 62:18020-18024. [PMID: 37862121 DOI: 10.1021/acs.inorgchem.3c03172] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2023]
Abstract
Second-harmonic generation (SHG) response and birefringence stand as fundamental optical properties for nonlinear optical (NLO) materials. Up to now, engineering a strong SHG response and substantial birefringence in the sulfamate system has proven to be exceedingly challenging. A novel noncentrosymmetric compound, Sr(NH2SO3)(NO3)·H2O, has been meticulously designed by introducing the (NO3)- group characterized by significant polarizability anisotropy and hyperpolarizability into the polar non-π-conjugated (NH2SO3)- system. This compound exhibits a robust SHG response (5.2 × KDP), ample birefringence (0.077 at 546.1 nm), and a short ultraviolet (UV) absorption edge (290 nm). The linear and nonlinear optical properties can be attributed to the (NO3)- group and the (NH2SO3)- group. This study presents an effective approach that contributes to the design of more composite anionic UV NLO materials with excellent and balanced optical properties.
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Affiliation(s)
- Xia Hao
- School of Materials Science and Engineering, Henan Normal University, Xinxiang 453007, P. R. China
| | - Chensheng Lin
- Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
| | - Min Luo
- Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China
| | - Ning Ye
- Tianjin Key Laboratory of Functional Crystal Materials, Institute of Functional Crystal, Tianjin University of Technology, Tianjin 300384, China
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4
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Wang YH, Li FY, Jiao DX, Wei Q, Wei L, Yang GY. Optically Anisotropic Mixed-Metal Fluoroiodate Ba 2[GaF 5(IO 3F)] with a Wide Optical Transparent Window and a Moderate Birefringence. Inorg Chem 2023; 62:17691-17696. [PMID: 37847177 DOI: 10.1021/acs.inorgchem.3c02213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2023]
Abstract
An optically anisotropic alkali-earth-metal gallium fluoroiodate, Ba2[GaF5(IO3F)] (1), was ingeniously obtained by integrating fluoride and fluoroiodate functional units under moderate hydrothermal conditions. It features a three-dimensional (3D) structure constructed by the highly polarizable fluoroiodate unit [IO3F] and the fluoride groups [GaOF5] and [BaO3Fx] (x = 6, 7). The compound is stable at temperatures up to 500 °C. With the synergistic interaction between [IO3F] and the fluoride groups, the mixed-metal fluoroiodate induces a short ultraviolet cutoff edge at about 230 nm, a medium measured birefringence of 0.068 @ 550 nm, and a wide optical transparent window (0.34-11.9 μm), indicating that 1 has potential applications as a birefringent material from near-UV to mid-infrared. Theoretical calculations prove that the optical characteristics of the compound are mainly attributed to [IO3F] and the fluoride functional groups. This work demonstrates that the presence of various specific functional groups in compounds will help to develop promising inorganic functional materials possessing good optical performance.
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Affiliation(s)
- Yu-Hang Wang
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, Shandong, P. R. China
| | - Fu-Ying Li
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, Shandong, P. R. China
| | - Dong-Xue Jiao
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, Shandong, P. R. China
| | - Qi Wei
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, Shandong, P. R. China
| | - Li Wei
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, Shandong, P. R. China
| | - Guo-Yu Yang
- MOE Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, P. R. China
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5
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Zhang Z, Xu D, Wu Z, Hu M, Su X, Huang Y. KRb 2(NO 3) 2Cl: a new birefringent crystal exhibiting a perovskite-related framework and a short cutoff edge. Dalton Trans 2023; 52:14303-14308. [PMID: 37801006 DOI: 10.1039/d3dt02952b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/07/2023]
Abstract
The combination of π-conjugated groups [NO3] and Cl-centered polyhedra generates a new birefringent crystal with a perovskite-related framework, KRb2(NO3)2Cl, which is the first alkali metal nitrate chloride synthesized by a mild hydrothermal method. It crystallizes in the orthorhombic space group pbam (no. 55). In addition, KRb2(NO3)2Cl crystals with dimensions up to 7 × 1.5 × 1 mm3 were grown. Notably, KRb2(NO3)2Cl has a short UV cut-off edge (below 228 nm) and a significantly enhanced birefringence (Δn = 0.084 at 1064 nm). Theoretical calculations indicate that the birefringence enhancement mainly derives from π-conjugated [NO3] plane triangles.
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Affiliation(s)
- Zhiyuan Zhang
- Xinjiang Laboratory of Phase Transitions and Microstructures in Condensed Matter Physics, College of Physical Science and Technology, Yili Normal University, Yining, Xinjiang, 835000, China.
| | - Die Xu
- Xinjiang Laboratory of Phase Transitions and Microstructures in Condensed Matter Physics, College of Physical Science and Technology, Yili Normal University, Yining, Xinjiang, 835000, China.
| | - Zhencheng Wu
- Xinjiang Laboratory of Phase Transitions and Microstructures in Condensed Matter Physics, College of Physical Science and Technology, Yili Normal University, Yining, Xinjiang, 835000, China.
| | - Mei Hu
- Xinjiang Key Laboratory of Solid State Physics and Devices, School of Physical Science and Technology & School of Chemical Engineering and Technology, Xinjiang University, 777 Huarui Street, Urumqi 830017, China
| | - Xin Su
- Xinjiang Laboratory of Phase Transitions and Microstructures in Condensed Matter Physics, College of Physical Science and Technology, Yili Normal University, Yining, Xinjiang, 835000, China.
| | - Yineng Huang
- Xinjiang Laboratory of Phase Transitions and Microstructures in Condensed Matter Physics, College of Physical Science and Technology, Yili Normal University, Yining, Xinjiang, 835000, China.
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6
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Long Y, Dong X, Huang L, Zeng H, Lin Z, Zou G. SbHPO 3F: 2D van der Waals Layered Phosphite Exhibiting Large Birefringence. Inorg Chem 2022; 61:16997-17001. [PMID: 36264600 DOI: 10.1021/acs.inorgchem.2c03266] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A novel antimony(III)-based phosphite, SbHPO3F, featuring a unique two-dimensional (2D) van der Waals layered structure, has been successfully designed and synthesized via the simultaneous employment of optically active moieties including SbO3F seesaw and tetrahedral HPO3 groups. Its optimized layered arrangement formed by the alternating connection of 4-membered rings (4-MRs) and 8-MRs endows the title compound with desirable optical properties including a large birefringence and short ultraviolet (UV) cutoff edge, implying that it is a potential UV birefringent material.
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Affiliation(s)
- Ying Long
- College of Chemistry, Sichuan University, Chengdu 610065, P. R. China
| | - Xuehua Dong
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610066, P. R. China
| | - Ling Huang
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610066, P. R. China
| | - Hongmei Zeng
- College of Chemistry, Sichuan University, Chengdu 610065, P. R. China
| | - Zhien Lin
- College of Chemistry, Sichuan University, Chengdu 610065, P. R. China
| | - Guohong Zou
- College of Chemistry, Sichuan University, Chengdu 610065, P. R. China
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7
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Zhang R, Su X, Zhang J, Xiong M, Huang Y. RbMo 2P 3O 14 with large birefringence mainly induced by highly distorted [MoO 6] in uncommon [Mo 2P 3O 14] ∞ layers. Dalton Trans 2021; 50:17559-17565. [PMID: 34816843 DOI: 10.1039/d1dt03285b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The introduction of d0 transition metal Mo6+ cations into a phosphate generates a new acentric molybdophosphate, RbMo2P3O14. It shows uncommon [Mo2P3O14]∞ layers composed of isolated [MoO6] octahedra and [P3O10] groups. To the best of our acknowledge, it exhibits the largest birefringence (a calculated value of 0.166 at 546 nm) among reported molybdophosphates. In addition, it also possesses a shorter UV cut-off edge (about 250 nm) than other molybdates and molybdophosphates, indicating that it can be used as a birefringent crystal in the UV optical region. First-principles electronic structure analysis suggests that the large birefringence mainly originates from highly distorted [MoO6].
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Affiliation(s)
- Rui Zhang
- School of Physical Science and Technology, Yili Normal University, Yining 835000, China. .,Xinjiang Laboratory of Phase Transitions and Microstructures of Condensed Matter Physics, Yi Li Normal University, Yining 835000, China
| | - Xin Su
- School of Physical Science and Technology, Yili Normal University, Yining 835000, China. .,Xinjiang Laboratory of Phase Transitions and Microstructures of Condensed Matter Physics, Yi Li Normal University, Yining 835000, China
| | - Jie Zhang
- Department of Physics, Changji University, Changji, Xinjiang 831100, China
| | - Mingyao Xiong
- School of Physical Science and Technology, Yili Normal University, Yining 835000, China. .,Xinjiang Laboratory of Phase Transitions and Microstructures of Condensed Matter Physics, Yi Li Normal University, Yining 835000, China
| | - Yineng Huang
- School of Physical Science and Technology, Yili Normal University, Yining 835000, China. .,Xinjiang Laboratory of Phase Transitions and Microstructures of Condensed Matter Physics, Yi Li Normal University, Yining 835000, China
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8
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Guo J, Tudi A, Han S, Yang Z, Pan S. Sn 2 PO 4 I: An Excellent Birefringent Material with Giant Optical Anisotropy in Non π-Conjugated Phosphate. Angew Chem Int Ed Engl 2021; 60:24901-24904. [PMID: 34523205 DOI: 10.1002/anie.202111604] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Indexed: 11/05/2022]
Abstract
Exploring non π-conjugated phosphate birefringent crystal with a large birefringence has been a great challenge. Herein, based on the unique two-dimensional layered structure in KBe2 BO3 F2 (KBBF), two new compounds, Sn2 PO4 I and Sn2 BO3 I, were designed and synthesized successfully, maintaining the layer structural feature and enhancing the optical anisotropy of crystals. In particular, the birefringence of Sn2 PO4 I is larger than or equal to 0.664 @546 nm, which is largest among the reported borates and phosphates, even surpassing commercial birefringent crystals YVO4 and TiO2 . This work indicates that a breakthrough in birefringence of inorganic compound was achieved. Also, it provides a guiding idea for exploring large birefringence materials in the future.
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Affiliation(s)
- Jingyu Guo
- CAS Key Laboratory of Functional Materials and Devices for Special Environments, Xinjiang Technical Institute of Physics & Chemistry of CAS, Xinjiang Key Laboratory of Electronic Information Materials and Devices, 40-1 South Beijing Road, Urumqi, 830011, China.,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Abudukadi Tudi
- CAS Key Laboratory of Functional Materials and Devices for Special Environments, Xinjiang Technical Institute of Physics & Chemistry of CAS, Xinjiang Key Laboratory of Electronic Information Materials and Devices, 40-1 South Beijing Road, Urumqi, 830011, China.,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Shujuan Han
- CAS Key Laboratory of Functional Materials and Devices for Special Environments, Xinjiang Technical Institute of Physics & Chemistry of CAS, Xinjiang Key Laboratory of Electronic Information Materials and Devices, 40-1 South Beijing Road, Urumqi, 830011, China.,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Zhihua Yang
- CAS Key Laboratory of Functional Materials and Devices for Special Environments, Xinjiang Technical Institute of Physics & Chemistry of CAS, Xinjiang Key Laboratory of Electronic Information Materials and Devices, 40-1 South Beijing Road, Urumqi, 830011, China.,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Shilie Pan
- CAS Key Laboratory of Functional Materials and Devices for Special Environments, Xinjiang Technical Institute of Physics & Chemistry of CAS, Xinjiang Key Laboratory of Electronic Information Materials and Devices, 40-1 South Beijing Road, Urumqi, 830011, China.,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
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9
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Guo J, Tudi A, Han S, Yang Z, Pan S. Sn
2
PO
4
I: An Excellent Birefringent Material with Giant Optical Anisotropy in Non π‐Conjugated Phosphate. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202111604] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Jingyu Guo
- CAS Key Laboratory of Functional Materials and Devices for Special Environments Xinjiang Technical Institute of Physics & Chemistry of CAS Xinjiang Key Laboratory of Electronic Information Materials and Devices 40-1 South Beijing Road Urumqi 830011 China
- Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing 100049 China
| | - Abudukadi Tudi
- CAS Key Laboratory of Functional Materials and Devices for Special Environments Xinjiang Technical Institute of Physics & Chemistry of CAS Xinjiang Key Laboratory of Electronic Information Materials and Devices 40-1 South Beijing Road Urumqi 830011 China
- Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing 100049 China
| | - Shujuan Han
- CAS Key Laboratory of Functional Materials and Devices for Special Environments Xinjiang Technical Institute of Physics & Chemistry of CAS Xinjiang Key Laboratory of Electronic Information Materials and Devices 40-1 South Beijing Road Urumqi 830011 China
- Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing 100049 China
| | - Zhihua Yang
- CAS Key Laboratory of Functional Materials and Devices for Special Environments Xinjiang Technical Institute of Physics & Chemistry of CAS Xinjiang Key Laboratory of Electronic Information Materials and Devices 40-1 South Beijing Road Urumqi 830011 China
- Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing 100049 China
| | - Shilie Pan
- CAS Key Laboratory of Functional Materials and Devices for Special Environments Xinjiang Technical Institute of Physics & Chemistry of CAS Xinjiang Key Laboratory of Electronic Information Materials and Devices 40-1 South Beijing Road Urumqi 830011 China
- Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences Beijing 100049 China
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10
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Chen Z, Zeng H, Han S, Yang Z, Pan S. From BaCl 2 to Ba(NO 3)Cl: significantly enhanced birefringence derived from π-conjugated [NO 3]. NEW J CHEM 2021. [DOI: 10.1039/d1nj03282h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The chlorine barium nitrate Ba(NO3)Cl was synthesized for the first time to the best of our knowledge and found to exhibit a strong birefringence of 0.178 @ 1064 nm, about 19 times that of BaCl2.
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Affiliation(s)
- Zhen Chen
- CAS Key Laboratory of Functional Materials and Devices for Special Environments, Xinjiang Technical Institute of Physics & Chemistry, CAS, Xinjiang Key Laboratory of Electronic Information Materials and Devices, 40-1 South Beijing Road, Urumqi 830011, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hao Zeng
- CAS Key Laboratory of Functional Materials and Devices for Special Environments, Xinjiang Technical Institute of Physics & Chemistry, CAS, Xinjiang Key Laboratory of Electronic Information Materials and Devices, 40-1 South Beijing Road, Urumqi 830011, China
| | - Shujuan Han
- CAS Key Laboratory of Functional Materials and Devices for Special Environments, Xinjiang Technical Institute of Physics & Chemistry, CAS, Xinjiang Key Laboratory of Electronic Information Materials and Devices, 40-1 South Beijing Road, Urumqi 830011, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhihua Yang
- CAS Key Laboratory of Functional Materials and Devices for Special Environments, Xinjiang Technical Institute of Physics & Chemistry, CAS, Xinjiang Key Laboratory of Electronic Information Materials and Devices, 40-1 South Beijing Road, Urumqi 830011, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shilie Pan
- CAS Key Laboratory of Functional Materials and Devices for Special Environments, Xinjiang Technical Institute of Physics & Chemistry, CAS, Xinjiang Key Laboratory of Electronic Information Materials and Devices, 40-1 South Beijing Road, Urumqi 830011, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
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11
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Zhang W, Jin W, Cheng M, Zhang R, Yang Z, Pan S. From centrosymmetric to noncentrosymmetric: effect of the cation on the crystal structures and birefringence values of (NH 4) n-2AE(PO 2F 2) n (AE = Mg, Sr and Ba; n = 2, 3 and 4). Dalton Trans 2021; 50:10206-10213. [PMID: 34231608 DOI: 10.1039/d1dt00698c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Fluorine-containing compounds significantly enrich the diversity of inorganic chemical structures. Here, four alkaline-earth metal difluorophosphates with different space groups, namely NH4Mg(PO2F2)3 (Cmcm) (1), NH4Sr(PO2F2)3 (P1[combining macron]) (2), (NH4)2Ba(PO2F2)4 (P2/n) (3) and Ba(PO2F2)2 (I4[combining macron]2d) (4), were synthesized and their structures were determined for the first time. 4 is not only the first alkaline-earth-metal difluorophosphate, but also the first difluorophosphate reported to crystallize in the non-centrosymmetric space group I4[combining macron]2d of the tetragonal crystal system. All of the three-dimensional (3D) structures of the title compounds consist of isolated (PO2F2)-, AE-O and NH4+ units, while the differences of the cation radius result in various arrangements of the (PO2F2)- units, which leads to diverse crystal structures and the disparate optical anisotropy of the crystals. According to the deep-ultraviolet (DUV) transmittance spectrum, 3 exhibits a short DUV cut off edge (<180 nm). Solid state 19F and 31P magic-angle spinning NMR spectroscopy was used to verify the presence of covalent P-F bonds in 3. The different size effects, as well as the coordination environments of the Mg2+, Sr2+, and Ba2+ cations, on the structures as a whole have been discussed in detail. In addition, the calculated birefringence values were observed to differ from 0.011 to 0.033 for the four compounds.
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Affiliation(s)
- Wenyao Zhang
- CAS Key Laboratory of Functional Materials and Devices for Special Environments; Xinjiang Technical Institute of Physics & Chemistry, CAS; Xinjiang Key Laboratory of Electronic Information Materials and Devices, 40-1 South Beijing Road, Urumqi 830011, China. and Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wenqi Jin
- CAS Key Laboratory of Functional Materials and Devices for Special Environments; Xinjiang Technical Institute of Physics & Chemistry, CAS; Xinjiang Key Laboratory of Electronic Information Materials and Devices, 40-1 South Beijing Road, Urumqi 830011, China. and Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Meng Cheng
- CAS Key Laboratory of Functional Materials and Devices for Special Environments; Xinjiang Technical Institute of Physics & Chemistry, CAS; Xinjiang Key Laboratory of Electronic Information Materials and Devices, 40-1 South Beijing Road, Urumqi 830011, China. and Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ruonan Zhang
- CAS Key Laboratory of Functional Materials and Devices for Special Environments; Xinjiang Technical Institute of Physics & Chemistry, CAS; Xinjiang Key Laboratory of Electronic Information Materials and Devices, 40-1 South Beijing Road, Urumqi 830011, China. and Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhihua Yang
- CAS Key Laboratory of Functional Materials and Devices for Special Environments; Xinjiang Technical Institute of Physics & Chemistry, CAS; Xinjiang Key Laboratory of Electronic Information Materials and Devices, 40-1 South Beijing Road, Urumqi 830011, China. and Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shilie Pan
- CAS Key Laboratory of Functional Materials and Devices for Special Environments; Xinjiang Technical Institute of Physics & Chemistry, CAS; Xinjiang Key Laboratory of Electronic Information Materials and Devices, 40-1 South Beijing Road, Urumqi 830011, China. and Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
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12
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Zhang W, Jin W, Yang Z, Pan S. K 4(PO 2F 2) 2(S 2O 7): first fluorooxophosphorsulfate with mixed-anion [S 2O 7] 2- and [PO 2F 2] - groups. Dalton Trans 2020; 49:17658-17664. [PMID: 33231582 DOI: 10.1039/d0dt03307c] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Mixed-anion compounds are among the most promising systems to design functional materials with enhanced properties. Among the phosphate-sulfate species, the [SO4]2- and [PO2F2]- tetrahedra are known and give rise to structural versatility. However, to date, the crystal structures of phosphate-sulfates with the coexistence of two distinct anion groups ([S2O7]2- and [PO2F2]-) in one compound are unknown. Here, a novel type of fluorooxophosphorsulfate, K4(PO2F2)2(S2O7) (KSPOF), is designed and synthesized via a high-temperature method in a closed system. The crystal structure is derived from single-crystal X-ray diffraction (C2/c, a = 13.000(10) Å, b = 7.5430(10) Å, c = 19.010(10) Å, β = 130.070(10)°, and Z = 4). It is the first fluorooxophosphorsulfate with mixed-anion building units ([S2O7]2- and [PO2F2]-) and a unique drum-like cluster was found, which enriches the diversity of structures for fluorooxophosphorsulfate systems. Furthermore, the theoretical calculations indicate that KSPOF possesses moderate birefringence, which mainly originates from the distorted [PO2F2]- tetrahedron.
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Affiliation(s)
- Wenyao Zhang
- CAS Key Laboratory of Functional Materials and Devices for Special Environments, Xinjiang Technical Institute of Physics & Chemistry, CAS, Xinjiang Key Laboratory of Electronic Information Materials and Devices, 40-1 South Beijing Road, Urumqi 830011, China.
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