Ureas and thioureas, otherwise known as carbamides and thiocarbamides, respectively, are rich sources of nitrogen. Urea has a wide range of applications in agriculture, the chemical industry, and automobile systems, and is an important chemical in medical uses. Thiourea, an organosulfur compound, has long been known as an important reagent in organic synthesis, and has been employed in textile processing, used as a source of sulphides, and acts as a precursor in the synthesis of several heterocyclic compounds. The exceptional ligating properties of these compounds enable them to form a large number of complex compounds with transition metals, a vast majority of which find abundant applications in potential areas. This has stimulated researchers to explore novel applications of the synthesized ligands and the metal complexes thereof. This review presents a report of the studies on the biological activities, sensor properties, opical nonlinear properties, corrosion inhibitior potential, and catalytic activities of these compounds and their metal complexes.

尿素和硫脲分别称为尿素和硫脲，是氮的丰富来源。尿素在农业，化学工业和汽车系统中具有广泛的应用，并且是医疗用途中的重要化学物质。硫脲是一种有机硫化合物，长期以来一直被认为是有机合成中的重要试剂，已被用于纺织品加工中，用作硫化物的来源，并在几种杂环化合物的合成中充当前体。这些化合物的非凡的连接性能使它们能够与过渡金属形成大量复杂的化合物，其中绝大多数在潜在领域得到了广泛的应用。这刺激了研究人员探索合成的配体及其金属配合物的新应用。