This collection explores the fascinating intersection where the laws of physics meet the complex machinery of chemistry. Here, researchers investigate how quantum mechanics governs molecular bonds, how light interacts with matter at the atomic scale, and how fundamental forces shape chemical reactions. It is a realm where abstract mathematical models collide with tangible substances to reveal the hidden mechanisms driving our material world.

On Gist.Science, we process every new preprint in this category directly from arXiv to make these discoveries accessible to everyone. Whether you are a seasoned expert or a curious reader, you will find both plain-language explanations and detailed technical summaries for each paper. Below are the latest contributions from the community pushing the boundaries of physical chemistry.

Thermodynamic Stability and Hydrogen Bonds in Mixed Halide Perovskites

This study demonstrates that mixed halide perovskites remain thermodynamically stable against phase separation primarily due to the large configurational entropy from random cation and halide substitution, which outweighs the positive enthalpy of mixing and the partial destabilization caused by reduced rotational entropy, thereby establishing that hydrogen bonding does not govern their phase stability.

Liz Camayo-Gutierrez, Javiera Ubeda, Ana L. Montero-Alejo, Ricardo Grau-Crespo, Eduardo Menéndez-Proupin2026-02-13🔬 cond-mat.mtrl-sci

Photoluminescent registration of fullerite C60_{60} derivatives during chemical interaction with H2_{2} and N2_{2} molecules

This paper reports the first photoluminescent registration of new C60C_{60} derivatives, specifically identifying a mixture of weakly saturated fulleranes (C60HxC_{60}H_{x}) and a biazafullerene dimer ((C59N)2(C_{59}N)_{2}) formed through chemical interaction with hydrogen and nitrogen at high temperatures.

Victor Zoryansky, Peter Zinoviev, Yuri Semerenko2026-02-12🔬 cond-mat