Metal‐Ion Induced In Situ Ligand Oxidation for Self‐Assembled Clusters: from Bis(5‐(2‐pyridine‐2‐yl)‐1,2,4‐triazole‐3‐yl)methane to Alcohol or Ketone |
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Abstract: | Hydrothermal reactions of metal nitrates and ligand bis(5‐(pyridine‐2‐yl)‐1,2,4‐triazol‐3‐yl)methane (H2L1) gave three cluster compounds, {Cr2}, {Zn12} and {Fe8}. Notably, methylene group of H2L1 was in situ oxidized either to hydroxymethylated (L2‐O)3− in the metallo‐ring {Zn12} or to a rigid carbonylated (L3=O)2− in the screw‐type {Fe8}. In light of comparative experimental results, NO3− was deduced to be of a catalytic role in the ligand oxidation. Metal ion could be regarded as an “induced” tool for clusters generation in self‐assembly process. |
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Keywords: | cluster compound in situ oxidation ligand reaction metal-ion induction |
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