Atom taxonomy: classification of atoms in compounds
[Zr{TeSi(SiMe₃)₃}₂(Te)(Dmpe)₂]
[Zr{TeSi(SiMe₃)₃}₄]
[Zr{η⁵-C₅H₄(SiMe₃)}(η⁷-C₇H₇)]