Unsaturated transition metal thiocarbonyl complexes are building blocks for stable organometallic complexes and play important role in catalysis and biology.The CS molecule is isovalent with CO.

不过渡金属硫代羰基化合物不仅在催化及物上具有重要作用，而且这些化合物是许的金属有机化合物的结构单元。