The First Nitro-Substituted Heteroscorpionate Ligand
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文摘
The new dihydridobis(3-nitro-1,2,4-triazolyl)borate ligand,[H2B(tzNO2)2]-, has been synthesized in dimethylacetamide solution,using 3-nitro-1,2,4-triazole and KBH4 through careful temperaturecontrol, and characterized as its potassium salt. The zinc(II) andcadmium(II) complexes, {M[H2B(tzNO2)2]Cl(H2O)2}, have beenprepared by metathesis of [H2B(tzNO2)2]K with ZnCl2 and CdCl2,respectively. The complexes likely contain a metal core in whichthe ligand is coordinated to the metal ions in the 2-N,N' or 4-N,N',O,O' fashion. A single-crystal structural characterization isreported for the potassium dihydrobis(3-nitro-1,2,4-triazolyl)borate.The potassium salt is polymeric and shows several K···N andK···O interactions.

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