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American Chemical Society
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A new pentadentate ligand, α,α,α′,α′-tetra(pyrazolyl)lutidine, pz4lut, has been prepared by a CoCl2-catalyzed rearrangement reaction between 2,6-pyridinedicarboxaldehyde and dipyrazolylthione. The coordination chemistry with some divalent first-row transition metal (Mn, Fe, Co, Ni, Cu, and Zn) chlorides has been explored. The electronic properties indicate that the new κ5N ligand is a slightly stronger-field donor to Ni2+ and Co2+ than a related pentadentate ligand with five pyridyl donors presumably because of greater interaction between the metal and axial pyridyl.
Morin, Tyler James; Bennett, Brian; Lindeman, Sergey V.; and Gardinier, James R., "First-Row Transition-Metal Complexes of a New Pentadentate Ligand, α,α,α′,α′-Tetra(pyrazolyl)lutidine" (2008). Physics Faculty Research and Publications. 20.
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