Meny

Du är här

Synthesis, EPR and DFF calculations of rare Ag(II)porphyrins and the crystal structure of [Zn(II)tetrakis(4-bromo-2-thiophene)porphyrin]

Författare:
  • Mohamed Ghazzali
  • Morsy A. M. Abu-Youssef
  • Krister Larsson (Dr)
  • Orjan Hansson
  • Adel Amer
  • Toomas Tamm
  • Lars Ohrstrom
Publiceringsår: 2008
Språk: Engelska
Sidor: 1019-1022
Publikation/Tidskrift/Serie: INORGANIC CHEMISTRY COMMUNICATIONS
Volym: 11
Nummer: 9
Dokumenttyp: Artikel
Förlag: ELSEVIER SCIENCE BV

Sammanfattning

Meso-tetrakis (4-bromo-2-thiophene) and (5-bromo-2-thiophene) porphyrins were synthesized in 18% yield from freshly distilled pyrrole and the corresponding aldehydes in refluxing propionic acid. Reaction of both porphyrins with either Zn(OAc)(2)center dot 2H(2)O Or Ag(OAc) afforded the corresponding metal complexes in 20% yield. The free bases and metal complexes were characterized by IR, NMR, EPR, MS and XPS. The crystal structure of 5,10,15.20(4-bromo-2-thiophene)porphyrinato Zn(II) was determined by X-ray diffraction and shows a 'zigzag-like' packing pattern due to S S intermolecular interaction. Structural features of these molecules are discussed by DFT quantum chemical calculations. (C) 2008 Elsevier B.V. All rights reserved.

Disputation

Nyckelord

  • Chemistry
  • X-ray structure determination
  • porphyrins
  • Ag(II)
  • DFT
  • EPR

Övriga

Published
Yes
  • ISSN: 1387-7003

Box 117, 221 00 LUND
Telefon 046-222 00 00 (växel)
Telefax 046-222 47 20
lu [at] lu [dot] se

Fakturaadress: Box 188, 221 00 LUND
Organisationsnummer: 202100-3211
Om webbplatsen