Three N2O2 ligands derived from the condensation of 1,2-cyclohexanediaminewith salicylaldehyde, acetylacetone and benzoylacetone - A new contribution to the energetical characterization of Schiff bases

• Type: Article in International Scientific Journal
• Date: 2007

Authors

Maria Ribeiro M C R da Silva (Author) FCUP; Araujo, NRM (Author) Other; Silva, ALR (Author) Other; da Silva, LCM (Author) Other; Barros, NPSM (Author) Other; Goncalves, JM (Author) FCUP; Ribeiro A V R da Silva (Author) FCUP

Journal

Title: Journal of Thermal Analysis and Calorimetry

Vol. 87

Pages: 291-296

ISSN: 1388-6150

Publisher: Springer Nature

Indexing

ISI Web of Knowledge - 9 Citations

Scopus - 9 Citations

Scientific classification

FOS: Natural sciences > Chemical sciences

Other information

Authenticus ID: P-004-DSW

DOI: 10.1007/s10973-006-7808-7

Abstract (EN): 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 (H(2)salch), N,N'-bis(acetylacetone)cyclohexanediimine (H(2)acacch) and N,N'-bis(benzoylacetone)cyclohexanediimine (H(2)bzacch), 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 beta-diketone with aliphatic diamines.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6