Thermal decomposition of pyridine-4-carbaldehyde oxime complexes of the type MpaH2X2 (where paH = C6H6N2O; M = Co,Ni or Cu; X = Cl or Br and M = Fe; X = Cl)
Affiliation:
2. Faculdade de Ciências Integradas do Pontal FACIP-UFU, Tupã, Ituiutaba, Minas Gerais, Brazil;3. Instituto de Química, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil;1. Universidade Federal de São Carlos, Departamento de Química, São Carlos, SP, Brazil;2. Instituto de Física de São Carlos, Universidade de São Paulo, São Carlos, SP, Brazil;3. Universidade Federal de São Carlos, Departamento de Gerontologia, São Carlos, SP, Brazil
Abstract:
The thermal decomposition of pyridine-4-carbaldehyde oxime (paH) complexes of the type MpaH2 (where M = CO, Ni or Cu; X = Cl or Br; and M = Fe; X = Cl) have been studied using T.G.A. and D.T.A. techniques. The complexes decompose initially to yield complexes of the type MpaHX2 (where M = Co or Ni; X = Cl or Br; M = Fe; X = Cl) or CupaX (where X = Cl or Br and pa = C6H5N2O). At higher temperatures the NipaHX2 complexes lose paH in a one step process to form NiX2 whereas the CopaHX2 complexes decompose via a CopaH23X2 role=presentation style=font-size: 90%; display: inline-block; position: relative;> intermediate complex.
