Inserting intermolecular hydrogen bonds to achieve dimensional regulation and phase transition temperature enhancement

• Published in: Inorganic chemistry communications Vol. 166; p. 112465
• Main Authors: Feng, Kang-Kang, Qi, Guan-Tong, Chen, Dian-Hua, Sun, Ya-Jie, Wang, Hao-Ran
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.08.2024
• ISSN: 1387-7003; 1879-0259
• DOI: 10.1016/j.inoche.2024.112465

[Display omitted] •Dimensional regulation of crystal structure by inserting intermolecular hydrogen bonds.•Inserting intermolecular hydrogen bonds to enhance the phase transition temperature of compounds.•The dimensional change further regulates the optical band gap of compounds. Organic-inorganic hybrid materials have become potential candidates in fields of light emitting diodes (LEDs), mechanical switches, energy conversion due to their excellent magneto-opto-electronic properties. Further improving the performance of materials is a prerequisite for achieving their commercial application. Currently, many effective strategies have been proposed and validated to enhance the properties of materials, but both simultaneously realizing the improvement phase transition temperature and dimensional regulation of materials remains a huge challenge. Here, we successfully synthesized two hybrid materials, (pyrrolidinium)PbI3 (Com-1) and (3-hydroxypyrrolium)6Pb5I16 (Com-2). In this work, the strategy of inserting intermolecular hydrogen bonds cleverly achieves a significant increase in phase transition temperature (ΔT = 81 K) and dimensional regulation (1D to 2D). Moreover, semiconductor properties of two compounds are investigated to be direct bandgap semiconductor. In short, inserting intermolecular hydrogen bonds between molecules is an effective strategy to improve physical performance.