Synthesis and characterization of halogeno- and pseudo-halogeno-thallium(III) porphyrin complexes. Variation of the co-ordination geometry as a function of the axial ligand

Mathias O. Senge, Karin Ruhlandt, Kevin J. Regli, Kevin M. Smith

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23 Citations (Scopus)

Abstract

Several thallium(III) porphyrin complexes [Tl(por)X] with the axial ligand X = MeCO2, CF3CO2, Cl, Br, I, CN, SCN or N3, have been obtained via ligand-exchange reactions from the corresponding thallium(III) trifluoroacetates. All compounds were characterized by 1H NMR, UV/VIS spectroscopy, and elemental analysis. Fourteen compounds were investigated in detail by X-ray crystallography to obtain information on the influence of the axial ligand on the macrocycle core conformation in main-group metalloporphyrins and to establish the molecular stereochemistry of thallium(III) porphyrins with cyano, acetato, thiocyanato, bromo, iodo and azido groups as axial ligands.

Original languageEnglish (US)
Pages (from-to)3519-3538
Number of pages20
JournalJournal of the Chemical Society - Dalton Transactions
Issue number23
DOIs
StatePublished - 1993
Externally publishedYes

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Thallium
Porphyrins
Ligands
Geometry
Metalloporphyrins
Trifluoroacetic Acid
Stereoisomerism
X ray crystallography
Ultraviolet spectroscopy
Conformations
Nuclear magnetic resonance
Chemical analysis

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

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abstract = "Several thallium(III) porphyrin complexes [Tl(por)X] with the axial ligand X = MeCO2, CF3CO2, Cl, Br, I, CN, SCN or N3, have been obtained via ligand-exchange reactions from the corresponding thallium(III) trifluoroacetates. All compounds were characterized by 1H NMR, UV/VIS spectroscopy, and elemental analysis. Fourteen compounds were investigated in detail by X-ray crystallography to obtain information on the influence of the axial ligand on the macrocycle core conformation in main-group metalloporphyrins and to establish the molecular stereochemistry of thallium(III) porphyrins with cyano, acetato, thiocyanato, bromo, iodo and azido groups as axial ligands.",
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T1 - Synthesis and characterization of halogeno- and pseudo-halogeno-thallium(III) porphyrin complexes. Variation of the co-ordination geometry as a function of the axial ligand

AU - Senge, Mathias O.

AU - Ruhlandt, Karin

AU - Regli, Kevin J.

AU - Smith, Kevin M.

PY - 1993

Y1 - 1993

N2 - Several thallium(III) porphyrin complexes [Tl(por)X] with the axial ligand X = MeCO2, CF3CO2, Cl, Br, I, CN, SCN or N3, have been obtained via ligand-exchange reactions from the corresponding thallium(III) trifluoroacetates. All compounds were characterized by 1H NMR, UV/VIS spectroscopy, and elemental analysis. Fourteen compounds were investigated in detail by X-ray crystallography to obtain information on the influence of the axial ligand on the macrocycle core conformation in main-group metalloporphyrins and to establish the molecular stereochemistry of thallium(III) porphyrins with cyano, acetato, thiocyanato, bromo, iodo and azido groups as axial ligands.

AB - Several thallium(III) porphyrin complexes [Tl(por)X] with the axial ligand X = MeCO2, CF3CO2, Cl, Br, I, CN, SCN or N3, have been obtained via ligand-exchange reactions from the corresponding thallium(III) trifluoroacetates. All compounds were characterized by 1H NMR, UV/VIS spectroscopy, and elemental analysis. Fourteen compounds were investigated in detail by X-ray crystallography to obtain information on the influence of the axial ligand on the macrocycle core conformation in main-group metalloporphyrins and to establish the molecular stereochemistry of thallium(III) porphyrins with cyano, acetato, thiocyanato, bromo, iodo and azido groups as axial ligands.

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