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Filiz Ercan, B. Meltem Ates, Levent Aksu, Hüseyin Sözeri, Ismail Ercan, Orhan Atakol

Structure and thermal decomposition of μ-1,1-azido bridged dinuclear Fe(III) complexes

Keywords: Dinuclear Fe(III) complex, X-ray diffraction, Single crystal structure analysis, Magnetic Properties, Thermal analysis

Fe(III) complexes were prepared by the reaction of two different ONNO type Schiff bases N,N´-bis (salicylidene)-1,3-propanediamine (LH₂) and N,N´-bis (salicylidene)-2,2´-dimethyl-1,3-propane diamine (LDMH₂) in N^–₃ containing medium. The X-ray diffraction studies revealed that the complexes are of dinuclear type connected with μ-1,1-azido bridges. It was observed from the thermogravimetric analyses of the complexes that the azide group decomposed around 200 °C with exothermic reaction. This exothermic decomposition did not affect the rest of the molecule. Following the decomposition of the azide group the remainder of the molecule decomposed with carbonization process. It was seen that the molecule decomposed into Fe₂O₃ above 650 °C in oxygen containing medium. [FeLDMN₃]₂ complex was found to have N₄O₂ distorted octahedral sphere with Fe…Fe distance of 3.414 Å.

Zeitschrift für Kristallographie, Oldenbourg Wissenschaftsverlag

Print ISSN: 0044-2968
Volume: 222, 09/2007
Pages: 498 - 503

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