Abstract
Molecular parameters of 5,10,15,20-tetrakis(4′-fluorophenyl)porphyrin were determined for the first time by gas-phase electron diffraction. Conformational preference was investigated based on the experimental data and was found to be in the good agreement with the preliminary model-based considerations. The experimental vibrational spectrum was measured and assigned. The structural features were compared with that of the previously studied Zn(II) and Pd(II) complexes with tetraphenylporphyrin. The results of the Knudsen effusion mass spectrometry experiment yielded the value of the sublimation enthalpy of ΔsubH°(584 К) = 233(4) kJ mol−1. The introduction of substituents into the para-position of phenyl fragments does not significantly affect the electron density distribution and geometry of the coordination cavity.
Published Version
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