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Thermal and spectroscopic study of dialkyl [alpha-(4-benzeneazoanilino)-N-benzyl]phosphonates and their palladium(II) halide complexes


Tušek-Božić, Ljerka; Ćurić, Manda; Traldi, Pietro
Thermal and spectroscopic study of dialkyl [alpha-(4-benzeneazoanilino)-N-benzyl]phosphonates and their palladium(II) halide complexes // Inorganica chimica acta, 254 (1997), 1; 49-55 (međunarodna recenzija, članak, znanstveni)


Naslov
Thermal and spectroscopic study of dialkyl [alpha-(4-benzeneazoanilino)-N-benzyl]phosphonates and their palladium(II) halide complexes

Autori
Tušek-Božić, Ljerka ; Ćurić, Manda ; Traldi, Pietro

Izvornik
Inorganica chimica acta (0020-1693) 254 (1997), 1; 49-55

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Thermal study; palladium(II) complexes; cyclopalladated complexes; aminophosphonate complexes

Sažetak
The mode of thermal decomposition of diethyl and dibutyl esters of [alpha-(4-benzeneazoanilino)-N-benzyl]phosphonic acid and their palladium(II) dihalide adducts, Pd(L)_2X_2 (L=organophosphorus ligand ; X=Cl, Br), as well as cyclopalladated complexes, [Pd(L-H)Cl]_2, have been investigated by thermal (TG, DTA) and spectroscopic (IR, FAB-mass) analyses. Thermal decomposition of the complexes takes place through a multistep process, the first step being a dehalogenation along with deesterification, followed by a complex pyrolysis that leads to a mixture of Pd and P_2O_5. The mass spectrometric data indicate differences in the gas-phase fragmentation pathways between the two types of metal complex and a scheme for their thermal decomposition is proposed. The primary decomposition step in the cyclopalladated complexes is shown to be the loss of the chloride ion. In both derivatives these processes are in competition with the loss of the phosphonate ester group.

Izvorni jezik
Engleski

Znanstvena područja
Kemija



POVEZANOST RADA


Projekt / tema
00980607

Ustanove
Institut "Ruđer Bošković", Zagreb

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus