NaMoO3(IO3)(H2O): water molecule introduction induces strong second harmonic generation response, widened band gap and large anisotropy

Shui, Yi; Liang, Zhengli; Li, Zhenhua; Wan, Jiahao; Liu, Lehui; Jiang, Xingxing; Lin, Zheshuai; Liu, Hongming

doi:10.1039/d3dt03304j

Cited by 2 publications

(2 citation statements)

References 66 publications

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“…Figures S8 and S9 present the IR spectra of the two title compounds. Both of them display broad absorption peaks near 3200 cm –1 associated with water molecules. , The absorption bands from 1238 to 1585 cm –1 could be assigned to the asymmetric stretching of CO and C–O bonds. , The IR spectrum of Zn-LTS shows the asymmetric and symmetric stretching vibrations of [SO 4 ] group near 1293 cm –1 . − The absorption bands in the range of 780–516 cm –1 can be assigned to the vibration of Zn–O bonds. − …”

Section: Resultsmentioning

confidence: 99%

“…Both of them display broad absorption peaks near 3200 cm −1 associated with water molecules. 51,52 The absorption bands from 1238 to 1585 cm −1 could be assigned to the asymmetric stretching of C�O and C−O bonds. 53,54 The IR spectrum of Zn-LTS shows the asymmetric and symmetric stretching vibrations of [SO 4 ] group near 1293 cm −1 .…”

Section: ■ Introductionmentioning

confidence: 99%

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Two Acentric Zn-Based l-Tartrates with Moderate Second Harmonic Generation Responses and Large Birefringence

Yu,

Wan,

Yang

et al. 2024

Inorg. Chem.

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The discovery of novel organic−inorganic hybrid nonlinear optical (NLO) crystal materials holds great potential in advancing laser science and technology as they offer a wide range of benefits including easy synthesis, structural versatility, and high hyperpolarizability. Herein, the integration of L-tartaric acid (L-C 4 H 6 O 6 ) and ZnSO 4 gave rise to two acentric Zn-based organic− inorganic hybrid crystals, namely, Zn 2 (, water molecule, or [SO 4 ] tetrahedron. Interestingly, they possess moderate secondorder NLO effects of 0.28 × KH 2 PO 4 (Zn-LT) and 0.57 × KH 2 PO 4 (Zn-LTS), large birefringence of 0.075 (Zn-LT) and 0.069 (Zn-LTS), suggesting that the introduction of [SO 4 ] groups with intrinsically weak polarizability and weak optical anisotropy induces the enhancement of the NLO effect while without reducing birefringence much. In addition, both of them display UV cutoff edges near 210 nm, indicating their potential as NLO crystals applied in the UV and solar-blind region.

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Section: Resultsmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

Two Acentric Zn-Based l-Tartrates with Moderate Second Harmonic Generation Responses and Large Birefringence

Yu,

Wan,

Yang

et al. 2024

Inorg. Chem.

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Cationic Coordination Modification Drives Birefringence and Nonlinear Effect Double Lifting in Sulfate

Wan,

Wang,

et al. 2024

Inorg. Chem.

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As nonlinear optical (NLO) crystals, sulfates have the superiority of transparency for ultraviolet (UV) light, but they are often troubled by small nonlinear coefficients and birefringence owing to the high symmetry of the [SO 4 ] 2− group. By introducing two neutral diethylenetriamine (DETA) molecules to replace the six coordinated water molecules of the [Zn(H 2 O) 6 ] 2+ complex cation in [Zn(H 2 O) 6 ](SO 4 )(H 2 O), a new sulfate with an acentric structure, namely, [Zn(DETA) 2 ](SO 4 )(H 2 O) 3 , has been designed and synthesized. Structural investigation reveals that the coordination modification of Zn 2+ ion tremendously enhances its intraoctahedral distortion. The formed distorted [Zn(DETA) 2 ] 2+ cations and the [SO 4 ] 2− groups feature an optimized arrangement, endowing [Zn(DETA) 2 ](SO 4 )(H 2 O) 3 with enhancements in both second harmonic generation (SHG) intensity, from undetectable to 0.25 × KH 2 PO 4 (KDP), and birefringence, from 0.014 to 0.042 at 1064 nm. Despite the slight compromise made in the light transmission range, [Zn(DETA) 2 ](SO 4 )(H 2 O) 3 still possesses a short absorption edge of 220 nm, retaining the majority of the light transmission range in the solar-blind region. Our work provides a novel and applicable approach of cationic coordination modification to improve the nonlinear optical coefficient and birefringence of sulfates.

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NaMoO₃(IO₃)(H₂O): water molecule introduction induces strong second harmonic generation response, widened band gap and large anisotropy

Abstract: A new acentric iodate, NaMoO3(IO3)(H2O), was obtained by introducing a water molecule into a centrosymmetric matrix, which induced the reorientation of Λ-shaped [MoO4(IO3)2] units and a strong nonlinear effect.

Cited by 2 publications

References 66 publications

Two Acentric Zn-Based l-Tartrates with Moderate Second Harmonic Generation Responses and Large Birefringence

Two Acentric Zn-Based l-Tartrates with Moderate Second Harmonic Generation Responses and Large Birefringence

Cationic Coordination Modification Drives Birefringence and Nonlinear Effect Double Lifting in Sulfate

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