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5-(4-(N-tert-Butyl-N-aminoxylphenyl))pyrimidine (RL, 4PPN) forms crystallographically isostructural and isomorphic pseudo-octahedral M(RL) 2 (hfac) 2 complexes with M(hfac) 2 , M=Zn, Cu, Ni, Co, and Mn. Multiple close contacts occur between sites of significant spin density of the organic radical units. Magnetic behavior of the Zn, Cu, Ni, Co complexes appears to involve multiple...
5-(4-[N-Tert-butyl-N-aminoxyl]phenyl)pyrimidine crystallographically exhibits alternating chains and in-plane dimers involving two distinct molecular geometries, plus dimeric stacking of only one of the forms. Its magnetic behavior is neither fully spin pairing nor chain-like, but rather shows low temperature spin pairing for half of molecules in the unit cell with J/k=(−)130 J/mol, consistent with...
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