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2,2‘;9‘,2‘ ‘-Ter[1,10]phenanthroline

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posted on 22.08.2005, 00:00 authored by Ruifa Zong, Randolph P. Thummel
The title molecule, 2,2‘;9‘,2‘ ‘-ter[1,10]phenanthroline can be prepared from 2,9-dichloro-1,10-phenanthroline in three steps through the corresponding diacetyl intermediate. The ligand acts as a hexadentate with K+, while two molecules form a trinuclear, helical complex with Cu(I), which evidences π-stacking interactions and Cu−Cu distances of 3.01−3.04 Å. Electrochemical analysis shows a strong interaction between the Cu(I) centers.