The molecules comprising the main group elements in lower valency are identified in the interstellar medium. Silicon is the fifth most abundant trace element, associated with late-type stars and regions where stars are developing, and plays a crucial role in forming interstellar dust grains. In the recent past, integrated experimental and computational strategies in silicon chemistry have become increasingly popular, and researchers have identified several Si-bearing molecules in the interstellar medium and circumstellar envelopes. About 300 molecules are observed in the interstellar medium and circumstellar envelopes in total, of which 15 are Si-bearing molecules. In addition, 28 Si-bearing chains and rings are reported as potential candidates for astronomical detection. This review summarizes the available data on the astronomical aspects of Si-bearing molecules. Detailed investigation of Si-bearing molecules commonly found in star-forming areas, late-type stars, and their relevance in space have been well documented here. Finally, attention is drawn to potential Si-bearing molecules for future interstellar identification, which has been reported using experimental and quantum chemical approaches.

中文翻译：

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星际介质和星际包层中的硅化学

在星际介质中鉴定出包含较低价主族元素的分子。硅是第五丰富的微量元素，与晚型恒星和恒星正在发育的区域有关，并且在形成星际尘埃颗粒方面发挥着至关重要的作用。近年来，硅化学中的综合实验和计算策略变得越来越流行，研究人员已经在星际介质和星际包层中发现了几种含硅分子。在星际介质和星周包膜中总共观察到约300个分子，其中15个是含硅分子。此外，据报道，28 个含硅链和环是天文探测的潜在候选者。这篇综述总结了含硅分子天文学方面的可用数据。对恒星形成区、晚型恒星中常见的含硅分子的详细研究及其在太空中的相关性已在这里得到充分记录。最后，人们关注了用于未来星际识别的潜在含硅分子，这已通过实验和量子化学方法进行了报道。