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Related Experiment Video

Updated: Jul 8, 2026

Construction and Systematical Symmetric Studies of a Series of Supramolecular Clusters with Binary or Ternary Ammonium Triphenylacetates
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Hydrogen-Bond-Directed Assembly of Polyanionic Cluster [Mo2O5(IO3)4]2- for Nonlinear Optical Crystal Design.

Jun Wang1, Shu-Fang Li1, Xin-Ran Hao1

  • 1Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, Anhui 241002, P. R. China.

Inorganic Chemistry
|July 7, 2026
PubMed
Summary

Researchers developed novel organic-inorganic hybrid molybdenyl iodates for advanced optical applications. One new material shows significant nonlinear optical properties, offering potential for UV devices.

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Area of Science:

  • Materials Science
  • Solid State Chemistry
  • Optoelectronics

Background:

  • Iodates are promising for nonlinear optical (NLO) materials due to the lone pair of I5+, enabling large second-harmonic generation (SHG) and birefringence.
  • Crystallization in centrosymmetric structures limits the development of high-performance NLO crystals.
  • Rational design of hybrid iodates using polyanionic cluster modulation with organic cations is underexplored.

Purpose of the Study:

  • To explore the rational design of hybrid iodates through polyanionic cluster modulation.
  • To synthesize and characterize novel organic-inorganic hybrid molybdenyl iodates.
  • To investigate the nonlinear optical properties of the synthesized materials.

Main Methods:

  • Electrostatic potential analysis to identify optimal building blocks.
  • Synthesis of organic-inorganic hybrid molybdenyl iodates using distinct planar π-conjugated cations.
  • Characterization of crystal structures and measurement of optical properties (SHG, birefringence).

Main Results:

  • The [Mo2O5(IO3)4]2- cluster was identified as an optimal building block.
  • Two hybrid molybdenyl iodates were synthesized: centrosymmetric (C5H6NO)2Mo2O5(IO3)4·2H2O (1) and noncentrosymmetric (C2H4N3)2Mo2O5(IO3)4·4H2O (2).
  • Compound 2 exhibits a strong SHG response (4.2 times KDP) and high birefringence (0.298 at 546 nm).

Conclusions:

  • The polyanionic cluster modulation strategy is effective for designing NLO materials.
  • The noncentrosymmetric compound 2 shows significant potential for UV linear and nonlinear optical applications.
  • This work opens new avenues for developing high-performance iodate-based NLO materials.