Effect of the Ruffled Porphyrin Ring on Electronic Structures: Structure and Characterization of [Fe(TalkylP)(OClO)] and [Fe(TPrP)(THF)]ClO (alkyl = Ethyl, Et and -Propyl, Pr).

J Porphyr Phthalocyanines

Contribution from The Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, and The Department of Physics, Knox College, Galesburg, Illinois 61401.

Published: January 2013

We report the synthesis of Fe(TalkylP)(OClO)] (alkyl = ethyl and propyl) and [Fe(TPrP)(THF)]ClO, which are characterized by UV-vis, EPR, X-ray crystallography, and solid-state magnetic susceptibilities. The macrocycles of all three complexes are ruffled, all of the structural features for [Fe(TEtP(OClO)] and [Fe(TPrP)(OClO)] are characteristic of the nearly pure S = 3/2 state, while the structural parameters for [Fe(TPrP)(THF)]ClO feature a pure intermediate-spin (S = 3/2) state, which are all consistent with EPR and magnetic data. It is clear from these studies that the ruffled conformation plays a significant role in affecting the extent of S = 3/2 character.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3633537PMC
http://dx.doi.org/10.1142/S1088424612501362DOI Listing

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