What question did this study set out to answer?

To examine the temperature-dependent structural dynamics and molecular disorder of methylammonium groups within crystalline lead halide frameworks.

December 1, 1987The Journal of Chemical Physics

Dynamic disorder in methylammoniumtrihalogenoplumbates (II) observed by millimeter-wave spectroscopy

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Authors

APA. PoglitschMax Planck Institute for Extraterrestrial Physics DWD. WeberLawrence Livermore National Laboratory

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Implication

Spectroscopic analysis reveals picosecond relaxation in crystalline methylammoniumtrihalogenoplumbates, indicating dynamic molecular disorder within high-temperature phases.

Key Points

To examine the temperature-dependent structural dynamics and molecular disorder of methylammonium groups within crystalline lead halide frameworks.
Determined the crystalline structure of CH3NH+3PbX−3 (X=Cl, Br, I) across temperatures using x-ray diffraction.
Measured temperature-dependent complex permittivity across high frequencies ranging from 50 to 150 GHz.
Identified a rapid picosecond relaxation process occurring within the high-temperature phases of the crystals.
Demonstrated that the dielectric relaxation process directly corresponds to dynamic disorder of the methylammonium groups inside the trihalogenoplumbate lattice.

Cite This Study

Poglitsch et al. (1987) studied this question.

synapsesocial.com/papers/69ddc0b1e02db3e29db0bd49 https://doi.org/10.1063/1.453467

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Implication

Spectroscopic analysis reveals picosecond relaxation in crystalline methylammoniumtrihalogenoplumbates, indicating dynamic molecular disorder within high-temperature phases.

Dynamic disorder in methylammoniumtrihalogenoplumbates (II) observed by millimeter-wave spectroscopy

Discussion

Member takes

Implication

Key Points

Cite This Study

Dynamic disorder in methylammoniumtrihalogenoplumbates (II) observed by millimeter-wave spectroscopy

Discussion

Member takes

Implication

Key Points

Cite This Study

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