Fig. 1 Animated Image for C-H activation from c&en Chemical and Engineering news 

https://acs-h.assetsadobe.com/is/image//content/dam/cen/99/8/WEB/09908-cover-opener.jpg/?&$responsive$&wid=1400&qlt=90,0&resMode=sharp2Accessed 14 Nov. 2021. 

Fig. 2. Image of Organocatalyst structures  from Thieme Chemistry

https://www.thieme.de/statics/bilder/thieme/final/en/bilder/tw_chemistry/SOS-D-workbench-asymetric-organocatalysis_rdax_440x282.jpg .Accessed 14 Nov. 2021