Organometallic space: unlike the organic CS, the Chinese leading role in the organometallic CS is very recent and much less pronounced (Figure ). While the contributions of the US and Japan decreased rapidly, not only China, but also India and Germany increased their share (Figure ). At the collaborative level, China-US partnership remarkably increased in 2008 and kept growing until 2010, when it began to oscillate (Figure ). The pandemic marked the change of dominant country on the expansion of the organometallic space, with the US stepping aside and giving place to China as the leading discoverer of organometallics. In fact, it was a dramatic change, as right after 2020 US contributions plummeted and Chinese ones drastically surged (Figure ). The pandemic also brought a drop in the China-US collaboration (Figure ), which suggests that China's post-pandemic rise was driven by its own national efforts.