Cuerva Cristián, Cano Mercedes, Lodeiro Carlos
BIOSCOPE Research Group, LAQV@REQUIMTE Chemistry Department, NOVA School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal.
Department of Inorganic Chemistry, Complutense University of Madrid, Ciudad Universitaria, 28040 Madrid, Spain.
Chem Rev. 2021 Oct 27;121(20):12966-13010. doi: 10.1021/acs.chemrev.1c00011. Epub 2021 Aug 9.
The use of liquid crystals for the fabrication of displays incorporated in technological devices (TVs, calculators, screens of eBook's, tablets, watches) demonstrates the relevance that these materials have had in our way of living. However, society evolves, and improved devices are looked for as we create a more efficient and safe technology. In this context, metallomesogens can behave as multifunctional materials because they can combine the fluidic state of the mesophases with properties such as photo and electroluminescence, which offers new exciting possibilities in the field of optoelectronics, energy, environment, and even biomedicine. Herein, it has been established the role of the molecular geometry induced by the metal center in metallomesogens to achieve the self-assembly required in the liquid-crystalline mesophase. Likewise, the effect of the coordination environment in metallomesogens has been further analyzed because of its importance to induce mesomorphism. The structural analysis has been combined with an in-depth discussion of the properties of these materials, including their current and potential future applications. This review will provide a solid background to stimulate the development of novel and attractive metallomesogens that allow designing improved optoelectronic and microelectronic components. Additionally, nanoscience and nanotechnology could be used as a tool to approach the design of nanosystems based on luminescent metallomesogens for use in bioimaging or drug delivery.
将液晶用于制造集成在技术设备（电视、计算器、电子书屏幕、平板电脑、手表）中的显示器，证明了这些材料在我们生活方式中所具有的重要性。然而，社会在发展，随着我们创造出更高效、更安全的技术，人们在寻求更先进的设备。在这种背景下，金属液晶基元可以作为多功能材料，因为它们能将中间相的流体状态与光致发光和电致发光等特性结合起来，这在光电子学、能源、环境乃至生物医学领域提供了令人兴奋的新可能性。在此，已经确定了金属中心在金属液晶基元中诱导的分子几何形状在实现液晶中间相所需的自组装中的作用。同样，由于配位环境对诱导介晶现象的重要性，对其在金属液晶基元中的影响进行了进一步分析。结构分析与对这些材料特性的深入讨论相结合，包括它们当前和潜在的未来应用。这篇综述将提供坚实的背景知识，以推动新型且有吸引力的金属液晶基元的发展，从而能够设计出更先进的光电子和微电子元件。此外，纳米科学和纳米技术可以用作一种工具，来设计基于发光金属液晶基元的纳米系统，用于生物成像或药物递送。
