The properties of the monolayer of the nickel compound with the amphiphilic, macrocyclic ligand 6,13-bis(he.adecanoyl)-6,7,12,14-tetramethyldibenzo[b,iltetraza[l4lannulenNe,i( dhtmdbTM1, onto a water eubphaee surface has been studied from the spreading isotherm. The beat conditione for the transference of the monolayers as Langmuir-Blodgett (LB) film on a solid support have been found. From optical spectra and transference ratios, the LB film was regular and homogeneous. The use of isotropic and polarized light allowed us to establish that a structural transition from a probable edge-on arrangement of the macrocycle at the air/water interface to an almost flat arrangement occurred during the thin, multilayer film build up.
Thermodynamic and spectral properties of monolayers and Langmuir-Blodgett films of the nickel compound of an amphiphilic tetraazaannulene derivative
LELJ GAROLLA DI BARD, Francesco;RICCIARDI, Giampaolo;
1993-01-01
Abstract
The properties of the monolayer of the nickel compound with the amphiphilic, macrocyclic ligand 6,13-bis(he.adecanoyl)-6,7,12,14-tetramethyldibenzo[b,iltetraza[l4lannulenNe,i( dhtmdbTM1, onto a water eubphaee surface has been studied from the spreading isotherm. The beat conditione for the transference of the monolayers as Langmuir-Blodgett (LB) film on a solid support have been found. From optical spectra and transference ratios, the LB film was regular and homogeneous. The use of isotropic and polarized light allowed us to establish that a structural transition from a probable edge-on arrangement of the macrocycle at the air/water interface to an almost flat arrangement occurred during the thin, multilayer film build up.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
