ETD

Archivio digitale delle tesi discusse presso l'Università di Pisa

Tesi etd-03192018-121021


Tipo di tesi
Tesi di laurea magistrale
Autore
MENICUCCI, FABIO LORENZO
URN
etd-03192018-121021
Titolo
Of a novel dearomatized manganese-PNP complex: synthesis, characterization and activity in formic acid dehydrogenation
Dipartimento
CHIMICA E CHIMICA INDUSTRIALE
Corso di studi
CHIMICA
Relatori
relatore Prof. Pineider, Francesco
controrelatore Dott.ssa Antonetti, Claudia
Parole chiave
  • manganese
  • leganti chelanti
  • idrogeno
  • hydrogen
  • homogeneous catalysis
  • catalisi omogenea
  • pincer ligands
Data inizio appello
05/04/2018
Consultabilità
Non consultabile
Data di rilascio
05/04/2088
Riassunto
A dearomatized Mn-PNP complex was prepared by the reaction of the corresponding aromatic complex with t-BuOK in THF. This new dearomatized complex was fully characterized and the molecular structure was further confirmed by X-ray crystallography. A distorted square-pyramidal geometry around the manganese center was observed, with a CO ligand in trans to the pyridinic nitrogen atom and the other in the apical position. The complex displays efficient catalytic activity for formic acid dehydrogenation under mild conditions in DMSO. Mechanistic studies suggest that the imine arm participate in the formic acid activation/deprotonation, showing another example of metal-ligand cooperativity in this type of chelated complexes.
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