Still as cis as ever, but I thought I'd show my support by posting an interesting transition metal compound from my lab inventory.
Here's a solution of tantalum chloride in ethanol/methanol, intended for sol-gel deposition of tantalum pentoxide thin films. You spin coat it on a substrate then heat in air; the chlorine swaps with an oxygen in atmospheric water vapor and you get HCl gas evaporating and Ta2O5 on the surface.





