INTERPHASE PROCESSES INVOLVING HYDRAZINE DERIVATIVES - IV THE PREPARATION OF SOLID SUPRAMOLECULAR COMPLEXES BETWEEN CROWN-ETHERS, POTASSIUMAND 2,2-DIPHENYL-1-PICRYLHYDRAZYL ANION

Authors
LUCA C IONITA P CAPROIU MT CONSTANTINESCU T
Citation
C. Luca et al., INTERPHASE PROCESSES INVOLVING HYDRAZINE DERIVATIVES - IV THE PREPARATION OF SOLID SUPRAMOLECULAR COMPLEXES BETWEEN CROWN-ETHERS, POTASSIUMAND 2,2-DIPHENYL-1-PICRYLHYDRAZYL ANION, Revue Roumaine de Chimie, 43(1), 1998, pp. 25-30
Citations number
17
Categorie Soggetti
Chemistry
Journal title
Revue Roumaine de Chimie → ACNP
ISSN journal
00353930
Volume
43
Issue
1
Year of publication
1998
Pages
25 - 30
Database
ISI
SICI code
0035-3930(1998)43:1<25:IPIHD->2.0.ZU;2-T
Abstract
The formation of supramolecular complexes of (CE ... K)+DPPH- type was confirmed by W-Vis spectroscopy, and H-1- and C-13-NMR, in solution, and by isolation in solid state; CE designates the crown ether and DFP H- the corresponding anion derived from 2,2-diphenyl-1-picrylhydrazine (DPPH2). Toe stability of supramolecular complexes was studied in 1-1 two-phase systems, in the presence of water with various concentratio ns of potassium hydroxide and at different ionic strengths.