Abstract

The crystal structure of a (2,6-dinitrophenolato)lithium complex has been determined by single-crystal X-ray diffraction methods. It is triclinic, space group , with a = 5.205(2), b = 8.972(3), c = 10.608(4) Å, β = 77.99(6)°, V = 474.2(3) Å3, Z = 1. The dimeric complex is centrosymmetric, excluding outer-sphere water molecules. The Li(I) ion is coordinated to five oxygen atoms to form square pyramidal geometry. There is a water molecule in the apical position, and four oxygen atoms from two 2,6-dinitrophenol (2,6-DNP) ligands form the basal plane. TG-DTG curves show that there are two steps for the mass loss during the thermal decomposition of the complex [Li(2,6-DNP)(H2O)]2·2H2O. The first, between 57 and 80°C, corresponds to dehydration, and the second, between 330 and 370°C, corresponds to decomposition of the complex with explosion.

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