Halogen Bond Unlocks Ultra‐High Birefringence DOI
Jin Chen,

Miao‐Bin Xu,

Huai‐Yu Wu

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: 136(44)

Published: July 10, 2024

Abstract Anisotropy is crucial for birefringence (Δ n ) in optical materials, but optimizing it remains a formidable challenge >0.3). Supramolecular frameworks incorporating π‐conjugated components are promising achieving enhanced because of their structural diversity and inherent anisotropy. Herein, we first synthesized (C 6 H NO 2 + Cl − ( NAC then constructed halogen‐bonded supramolecular framework I 4 INA by halogen aliovalent substitution with . The organic moieties protonated deprotonated nicotinic acid NA ), respectively. antiparallel arrangement birefringent‐active units leads to significant differences the bonding characteristics between interlayer intralayer domains. Moreover, [O⋅⋅⋅I ⋅⋅⋅N] bond 1D [I ] chain exhibits stronger interactions stricter directionality, resulting more pronounced in‐plane anisotropy intrachain interchain directions. Consequently, exceptional birefringent performance, value 0.778 at 550 nm, twice that (0.363 nm). This significantly exceeds those commercial crystals, such as CaCO 3 (0.172 546 nm), highest reported among ultraviolet crystals. work presents novel design strategy employs bonds connection sites modes units, opening new avenues developing high‐performance

Language: Английский

Sulfate Derivatives with Heteroleptic Tetrahedra: New Deep‐Ultraviolet Birefringent Materials in which Weak Interactions Modulate Functional Module Ordering DOI
Huan Zhou, Meng Cheng,

Dongdong Chu

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 64(1)

Published: Aug. 15, 2024

Deep-ultraviolet (UV) birefringent materials are urgently needed to facilitate light polarization in deep-UV lithography. Maximizing anisotropy by regulating the alignment of functional modules is essential for improving linear optical performance materials. In this work, we proposed a strategy design that achieve module ordering via weak interactions. Following strategy, four compounds CN

Language: Английский

Citations

10
Hg2(SeO3)(TeO3): A novel tellurite-selenite birefringent crystal achieved by assembling multiple functional groups DOI
Pengfei Li, Chun‐Li Hu, Jiang‐Gao Mao

et al.

Journal of Materials Chemistry C, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Hg 2 (SeO 3 )(TeO ), a new tellurite–selenite birefringent crystal, showcases broad transparency range, large birefringence, and high thermal stability, positioning it as promising material.

Language: Английский

Citations

2
Designing excellent UV birefringent materials through the synergistic interaction of two highly distorted functional groups DOI
Xiaoyan Zhou, Xiang Mao,

Pu Zhang

et al.

Inorganic Chemistry Frontiers, Journal Year: 2024, Volume and Issue: 11(11), P. 3221 - 3228

Published: Jan. 1, 2024

Two outstanding UV birefringent materials SbTeO 3 Cl and Br with a honeycomb-like two-dimensional (2D) layer structure, have been successfully designed, demonstrating significant birefringence (0.281@546 nm 0.227@546 nm, respectively).

Language: Английский

Citations

8
Designing promising ultraviolet (UV) birefringent crystals with different hydrogen-bonded phosphate frameworks DOI

Miao‐Bin Xu,

Jin Chen,

Huai‐Yu Wu

et al.

Inorganic Chemistry Frontiers, Journal Year: 2024, Volume and Issue: 11(14), P. 4307 - 4317

Published: Jan. 1, 2024

From (C 6 H 7 N 2 O) + (H PO 4 ) − to NO : different preparation methods resulting in tuning the inorganic framework and outstanding birefringence organic phosphates.

Language: Английский

Citations

8
Halogen Bond Unlocks Ultra‐High Birefringence DOI
Jin Chen, Mingsheng Xu,

Huai‐Yu Wu

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(44)

Published: July 10, 2024

Anisotropy is crucial for birefringence (Δn) in optical materials, but optimizing it remains a formidable challenge (Δn >0.3). Supramolecular frameworks incorporating π-conjugated components are promising achieving enhanced because of their structural diversity and inherent anisotropy. Herein, we first synthesized (C

Language: Английский

Citations

8
A Giant Optically Anisotropic Phosphate Driven by Mixed Valence Mercury Units DOI
Pengfei Li, Chun‐Li Hu, Jiang‐Gao Mao

et al.

Laser & Photonics Review, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 24, 2024

Abstract Phosphate crystals are known for their low birefringence, a result of the symmetrical tetrahedral structure PO 4 groups. Attempts to increase birefringence have traditionally involved incorporation highly anisotropic ions and Yet, majority modified phospates still exhibit value below 0.1, due counteracting effects elements within coordination. The present study has first time discovered novel birefringence‐active Hg I 2 II O 9 unit successfully constructed layered structure, which ingeniously prevents mutual cancellation effects. This synthesis (Te ) (HPO confirms effectiveness this strategy, yielding 0.444 at 546 nm, outperforms 99% phosphate surpasses that commercial counterparts like YVO (0.209@1064 nm) CaCO 3 (0.175@533 nm). Structural analysis PAWED calculations indicate significant is attributed synergistic interaction between (23.76%), HPO tetrahaedron (24.24%) TeO group (51.99%). breakthrough paves way phosphates meet demands modern technological advancements, expanding potential applications in field optics.

Language: Английский

Citations

7
Dual-Anion Strategy Induces Dual Enhancement Toward Ultrashort Phase-Matching Wavelength in Deep-UV Transparent d0 Transition Metal Oxyfluorides DOI

Dongdong Chu,

Kewang Zhang, Congwei Xie

et al.

ACS Materials Letters, Journal Year: 2024, Volume and Issue: 6(4), P. 1094 - 1102

Published: Feb. 23, 2024

The d0 transition metal oxides are the most commonly used nonlinear optical (NLO) materials in visible light region; however, their limited band gaps seriously hinder application ultraviolet (UV) and deep-ultraviolet (DUV) regions. Achieving double enhancement of gap birefringence by regulating anionic units helps to push phase-matching (PM) wavelength into UV/DUV Herein, starting from famous NLO material LiNbO3, a "dual-anion strategy" is proposed regulate [NbO6–xFx] octahedra, predicted Li2Nb2O6–xF2x·(LiF)y (x = 1, 2, 4; y 0, 2) exhibit dual-property magnification wide (3.82–6.26 eV, 1–3 eV larger than LiNbO3) extraordinary (0.100–0.322, 1–4 times that LiNbO3), along with strong second harmonic generation (SHG) response 2.6–6.2 × KDP. Remarkably, Li2NbOF5-I LiNbOF4-II have extremely short PM (λPM 209 nm) ever reported for oxyfluorides. Further analysis uncovers fluorinated modification edges increase octahedral anisotropy [NbO6−xFx] groups main reasons enhanced ability.

Language: Английский

Citations

6
Highly Stable MOF‐Type Lead Halide Luminescent Ferroelectrics DOI

Chen Sun,

Yukong Li,

Jinlin Yin

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: 136(29)

Published: May 15, 2024

Abstract Lead halide molecular ferroelectrics represent an important class of luminescent ferroelectrics, distinguished by their high chemical and structural tunability, excellent processability distinctive characteristics. However, inherent instability, prone to decomposition upon exposure moisture light, hinders broader ferroelectric applications. Herein, for the first time, we present a series isoreticular metal–organic framework (MOF)‐type lead demonstrating exceptional robustness under ambient conditions at least 15 months even when subjected aqueous boiling conditions. Unlike conventional metal‐oxo secondary building units (SBUs) in MOFs adopting highly centrosymmetric structure with limited distortion, our halide‐based occupy structurally deformable [Pb 2 X] + (X=Cl − /Br /I ) SBUs that facilitate c ‐axis‐biased displacement Pb 2+ centers substantially contribute thermoinducible transformation. Importantly, this MOF‐type undergo ferroelectric‐to‐paraelectric phase transitions remarkably Curie temperature up 505 K, superior most ferroelectrics. Moreover, covalent bonding between phosphorescent organic component light‐harvesting inorganic achieves efficient spin‐orbit coupling intersystem crossing, resulting long‐lived afterglow emission. The compelling combination stability, ferroelectricity emission exhibited opens many potential opportunities energy‐conversion

Language: Английский

Citations

4
The centrosymmetric to non-centrosymmetric transformation induced by alkaline-earth cations producing infrared nonlinear optical AeMn6Ga6S16 (Ae = Ca, Sr) DOI
Yangping Zhang,

Shao‐Min Pei,

Wen‐Fa Chen

et al.

Science China Chemistry, Journal Year: 2024, Volume and Issue: 67(9), P. 2941 - 2948

Published: July 10, 2024

Language: Английский

Citations

4
Birefringence Disparity Induced by Synergistic Effects of Stereochemically Active Lone Pairs DOI

Jiarong Lv,

Gangji Yi,

Xuan Zou

et al.

Chemistry of Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 3, 2024

Birefringent crystals with significant optical anisotropy have played a pivotal role in laser technology and scientific research by modulating controlling light polarization. In this study, we successfully synthesized three new birefringent materials mixed-valence antimony, namely, KSb3O6, RbSb3O6, α-Sb2O4, through the introduction of Sb3+ stereochemically active lone pairs (SCALP) to total oxygen system using high-temperature solution method. To best our knowledge, K/RbSb3O6 represents first alkali metal Sb-based oxide. Interestingly, despite their similar sandwich structure, these exhibit vastly different levels birefringence (almost 10 times difference). It is worth noting that α-Sb2O4 demonstrates largest experimental (0.201 at 546 nm) among non-π-conjugated oxides date, which can be attributed synergistic effect SCALP group distortion arrangement. These findings hold valuable implications for guiding future efforts designing synthesizing large materials.

Language: Английский

Citations

4