Ruthenium is unknown to living systems, with a strong complex forming ability with numerous ligands.
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NAMI-A and KP1019 are based primarily around the use of Ruthenium, a rare noble metal.
ALD can be used to deposit several types of thin films, including various oxides (e.g. ZnO, nitrides (e.g. TiN, TaN, WN, NbN), metals (e.g. Ru, Ir, Pt), and metal sulfides (e.g. ZnS).
DPEN and BINAP are the key ingredients of Noyori's 2nd Generation Ruthenium based chiral hydration catalyst, Ryōji Noyori earned the Nobel Prize in 2001.
It was up to the Russian chemist Karl Klaus to verify their existence, which he did in 1844 by isolating measurable quantities of ruthenium.
Karl Ernst Claus (1796–1864), Russian chemist and discoverer of ruthenium