6533b820fe1ef96bd1279c04

RESEARCH PRODUCT

Intercalation of cobalt(II)-tetraphenylporphine tetrasulfonate complex in magnetic NiFe-layered double hydroxide

Antonio RiberaCarlos Martí-gastaldoCarlos J. Gómez-garcíaGonzalo AbellánEugenio Coronado

subject

Ion exchangeInorganic chemistryIntercalation (chemistry)chemistry.chemical_element02 engineering and technology010402 general chemistry021001 nanoscience & nanotechnology01 natural sciences0104 chemical scienceslaw.inventionInorganic ChemistrySQUIDCrystallographychemistry.chemical_compoundParamagnetismchemistrylawFerrimagnetismMaterials ChemistryHydroxidePhysical and Theoretical Chemistry0210 nano-technologyCobalt

description

Abstract Hybrid magnetic multilayers have been synthesized by means of intercalation of [5,10,15,20-tetrakis(4-sulfonatophenyl)porphyrinato]cobalt(II) (CoTPPS) complex in the interlayer space of a Ni II Fe III layered double hydroxide (LDH), through anion-exchange reaction. A sebacate ( − OOC–(CH 2 ) 8 –COO − ) intercalated NiFe-LDH have been used as precursor, facilitating the anion exchange reaction, thus permitting the inclusion of a paramagnetic macrocycle inside the ferrimagnetic NiFe-LDH layers. The material has been characterized by XRD, FT-IR, SEM, SQUID and ESR. The T c for the hybrid NiFe–CoTPPS, ca. 11–12 K, is very close to that shown by the precursor, despite that the intercalation of the complex promotes an expansion in the basal space from 15.4 to 22.4 A.

10.1016/j.poly.2012.09.045http://dx.doi.org/10.1016/j.poly.2012.09.045