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- Title
Three N<sub>2</sub>O<sub>2</sub> ligands derived from the condensation of 1,2-cyclohexanediaminewith salicylaldehyde, acetylacetone and benzoylacetone.
- Authors
Ribeiro da Silva, Maria D. M. C.; Araújo, N. R. M.; Silva, A. L. R.; da Silva, L. C. M.; Barros, N. P. S. M.; Gonçalves, J. M.; Ribeiro da Silva, M. A. V.
- Abstract
The standard ( p 0=0.1 MPa) molar enthalpies of formation, at T=298.15 K, in the gaseous phase, for three tetradentate Schiff bases involving a N2O2 set, N, N’-bis(salicylaldehydo)cyclohexanediimine (H2salch), N, N’-bis(acetylacetone)cyclohexanediimine (H2acacch) and N, N’-bis(benzoylacetone)cyclohexanediimine (H2bzacch), were determined from their enthalpies of combustion and sublimation, obtained by static bomb calorimetry in oxygen and by the Knudsen effusion technique, respectively. The results are compared with identical parameters for related compounds previously studied, resulting from the condensation of salicylaldehyde or β-diketone with aliphatic diamines.
- Subjects
ENTHALPY; SCHIFF bases; CALORIMETRY; OXYGEN; SUBLIMATION (Chemistry)
- Publication
Journal of Thermal Analysis & Calorimetry, 2007, Vol 87, Issue 1, p291
- ISSN
1388-6150
- Publication type
Article
- DOI
10.1007/s10973-006-7808-7