Lucas’ favourite element is phosphorus, which coincidentally has been at the forefront of almost all his past research projects. During his PhD, he was fascinated by the diagonal relationship between phosphorus and carbon, thus drove him to develop phosphorus analogues of classical organic compounds such as cumulenes. From a historical perspective, phosphorus played a key role in the isolation of the first stable carbene. Now, carbenes are among the most powerful tools in organic and organometallic chemistry. In YKLab, Lucas aims to apply his knowledge of phosphorus and main-group chemistry to the design of new octet-defying carbon species.