Photomechanical properties in metal-organic crystals

• Published in: Chemical communications (Cambridge, England) England), 2024-07, Vol.6 (59), p.7555-7565
• Main Authors: Khan, Samim, Mir, Mohammad Hedayetullah
• Format: Article
• Language: English
• Subjects: Actuators; Artificial muscles; Automation; Coordination compounds; Coordination polymers; Crystal growth; Flexible components; Manufacturing engineering; Medical devices; Medical equipment; Metal-organic frameworks; Optical properties; Organic crystals; Robotics; Smart materials
• ISSN: 1359-7345; 1364-548X; 1364-548X
• DOI: 10.1039/d4cc02655a

The emergence of materials that can effectively convert photon energy (light) into motion (mechanical work) and change their shapes on command is of great interest for their potential in the fabrication of devices (powered by light) that will revolutionize the technologies of optical actuators, smart medical devices, soft robotics, artificial muscles and flexible electronics. Recently, metal-organic crystals have emerged as desirable smart hybrid materials that can hop, split and jump. Thus, their incorporation into polymer host objects can control movement from molecules to millimetres, opening up a new world of light-switching smart materials. This feature article briefly summarizes the recent part of the fast-growing literature on photomechanical properties in metal-organic crystals, such as coordination compounds, coordination polymers (CPs), and metal-organic frameworks (MOFs). The article highlights the contributions of our group along with others in this area and aims to provide a consolidated idea of the engineering strategies and structure-property relationships of these hybrid materials for such rare phenomena with diverse potential applications. This feature article aims to provide an authoritative view to understand the chemical aspects of the photosalient behavior of metal-organic crystals for further progress in this field of photoactuating smart materials.