Entropically driven melting of Cu-based 1D coordination polymers.

Area of Science:

• Thermodynamics
• Materials Science
• Computational Chemistry

Background:

• Crystalline polymers (CPs) exhibit diverse melting behaviors.
• Understanding the thermodynamic underpinnings of CP melting is crucial for materials design.

Purpose of the Study:

• To investigate the melting behavior of four one-dimensional CPs.
• To analyze the thermodynamic factors governing their melting points.

Main Methods:

• Thermodynamic analysis of melting behavior.
• Density Functional Theory (DFT) calculations to study crystal interactions.

Main Results:

• Observed variations in melting points correlated with different crystal structures.
• DFT analyses indicated significant contributions from entropic terms.

Conclusions:

• Entropic contributions are a dominant factor in determining the melting points of these CPs.
• Crystal structure and thermodynamic properties are intrinsically linked in one-dimensional CPs.