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trispyrazolylborate

n. (context chemistry English) A tridentate ligand composed of three pyrazole groups (or derivatives thereof) attached to a borane residue; any metal salt containing this ligand

Wikipedia
Trispyrazolylborate

In inorganic chemistry, the trispyrazolylborate ligand, abbreviated Tp, is an anionic tridentate and tripodal ligand. Trispyrazolylborate refers specifically to the anion [HB(CNH)], but the term trispyrazolylborate refers to derivatives substituted at on the pyrazolyl rings. This family of compounds are sometimes called scorpionate ligands.