The stability of inclusion compounds under heating
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The thermal decomposition of three inclusion compounds: [Zn2(camph)2dabco]·DMF·H2O, [Zn2(camph)2bipy]·3DMF·H2O and [Zn2(camph)2bpe]·5DMF·H2O was studied in the inert atmosphere. TG and DTG curves confirm multi-step decomposition process, the dehydration being the first step. Thermogravimetric data (obtained at different rates of linear heating) were processed with computer program (with ‘Model-free’ approach). Kinetic parameters of decomposition were calculated for the DMF multi-step removal, the processes are described by Avrami–Erofeev equations. The connection between the kinetic parameters and structural features of the host frameworks (ligand linker lengths and porous-free volumes) are discussed.
KeywordsCoordination compounds Inclusion compounds ‘Model-free’ kinetics Non-isothermal kinetics
The authors are grateful to Netzsch Geraetebau GmbH for the possibility to work with computer program “NETZSCH Thermokinetics 2” and RFBR for the financial support (Grants 07-03-00436 and 07-03-91208).
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