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A Greek mu with a raised numeral, before a ligand's name.
Also known as: Bridging notation, Mu notation, Mu-two bridge, Greek u before a ligand
μ marks a ligand that bridges two or more metal centres at once, with the superscript counting how many. It is what turns a set of separate metal ions into a cluster, which is the structural basis of most metalloenzyme active sites.
Denotes a bridging ligand, the raised numeral giving the number of metal centres it connects.
Contexts: Laboratory
Is what distinguishes a polynuclear cluster from a set of independent complexes, structurally and in nomenclature.
Contexts: Laboratory
Uses the same Greek mu as chemical potential, friction, permeability and the micro prefix.
Contexts: Laboratory
A Greek lowercase mu — a rounded form with a descending tail on the left — carrying a small raised numeral.