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Updated: Aug 7, 2026
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Atomic Scale Structural Studies of Macromolecular Assemblies by Solid-state Nuclear Magnetic Resonance Spectroscopy
Published on: September 17, 2017
Stepwise spin transition tuned by solvent ratios in an atypical 2-fold interpenetrated PtS-type framework
Shuo-Chen Ni1, Yu-Ting Yang1, Jin-Peng Xue1
1School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China. xuejinpeng@nbu.edu.cn.
Dalton Transactions (Cambridge, England : 2003)
|August 6, 2026
Summary
Researchers synthesized a novel spin-crossover (SCO) framework that shows solvent-dependent transitions. The study reveals how coordination geometry influences the framework
Area of Science:
- Coordination Chemistry
- Materials Science
- Supramolecular Chemistry
Background:
- Spin-crossover (SCO) materials exhibit distinct high-spin and low-spin states.
- Interpenetrated frameworks offer unique structural and functional properties.
- Controlling SCO behavior through external stimuli is crucial for device applications.
Purpose of the Study:
- To synthesize a 2-fold interpenetrated PtS-type spin-crossover framework.
- To investigate the influence of solvent composition on the spin transition behavior.
- To understand the role of coordination geometry in framework formation and interpenetration.
Main Methods:
- Solvothermal synthesis of the PtS-type framework.
- Variable-temperature magnetic susceptibility measurements to study spin transitions.
- Single-crystal X-ray diffraction to analyze structural changes and coordination geometry.
Main Results:
- Successful synthesis of a 2-fold interpenetrated PtS-type SCO framework.
- Observation of solvent-dependent stepwise spin transitions, tunable by methanol/dichloromethane ratios.
- Correlation between secondary building unit (SBU) coordination geometry distortion and the interpenetration pattern.
Conclusions:
- The synthesized framework exhibits tunable spin-crossover properties based on solvent environment.
- Coordination geometry distortion is a critical factor governing the formation of interpenetrated structures.
- This study provides insights into the rational design of SCO materials with controlled interpenetration.
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