Using UV/Vis spectroscopy I try to find influences of substituents on this ruthenium complex. How can I know which transitions between which orbitals cause the absorptions? I don't really know how to search for data needed to base a decision on. Does anyone have an idea about this & could advise me?
Sadly I found a 'great pond snail' (right side, aka Yoda snail) dead. Bc it's larger than the left one & its shell looks quite old, it might have died due to its age. I have 3 questions in the comments about: - whether it got poisoned - the left-behind spawn strings - obtaining the shell for memory.
