The energetic content of the compounds MgTp, FeTp, MnTp, and TiTp is measured by bomb calorimetry and compared to theoretical calculations (Tp = trispyrazoylborate). TiTp had the largest heat of combustion of the four compounds. Comparison of the heat of combustion of the Ti complex to those of Mg and Mn complexes suggests an effective combustion energy of Ti of between 1400 and 3000 kJ/mol, affirming the role of Ti as a strong fuel atom.
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