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Hyperspectral Imaging as a Tool to Study Optical Anisotropy in Lanthanide-Based Molecular Single Crystals
Published on: April 14, 2020
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Lanthanum lead oxide hydroxide nitrates with a nonlinear optical effect.
Genxiang Wang1, Min Luo, Chensheng Lin
1Fujian Institute of Research on the Structure of Matter, Key Laboratory of Optoelectronic Materials Chemistry and Physics, Chinese Academy of Sciences , Fuzhou, Fujian 350002, P. R. China.
Inorganic Chemistry
|November 12, 2014
Summary
Two new lanthanum lead oxide hydroxide nitrates were synthesized, exhibiting acentric structures and promising nonlinear optical properties. These compounds demonstrate potential for applications in advanced optical materials.
Area of Science:
- Inorganic Chemistry
- Materials Science
- Crystallography
Background:
- Lanthanum lead oxide hydroxide nitrates are novel compounds with potential applications in nonlinear optics.
- Acentric structures are crucial for second-harmonic-generation (SHG) properties.
Purpose of the Study:
- To synthesize and characterize new lanthanum lead oxide hydroxide nitrates.
- To investigate the crystal structures and second-harmonic-generation (SHG) properties of these novel compounds.
Main Methods:
- Subcritical hydrothermal synthesis.
- Single-crystal X-ray diffraction for structural analysis.
- Second-harmonic-generation (SHG) measurements.
- Theoretical calculations.
Main Results:
- Two new lanthanum lead oxide hydroxide nitrates, [LaPb8O(OH)10(H2O)](NO3)7 (1) and [LaPb8O(OH)10(H2O)](NO3)7·2H2O (2), were successfully synthesized.
- Compound 1 exhibits an acentric Cc space group, while compound 2 crystallizes in an acentric P2(1)2(1)2(1) space group.
- Both compounds display significant SHG responses (1.3 and 1.1 times that of KH2PO4, respectively), attributed to the nitrate groups.
Conclusions:
- The synthesized lanthanum lead oxide hydroxide nitrates possess acentric structures and notable nonlinear optical properties.
- The SHG efficiency is primarily derived from the nitrate ions within the crystal structures.
- These findings suggest potential for these materials in optical device applications.
