Studies on Mixed Monolayers and Langmuir–Blodgett Films of Schiff-Base Complex Cu(SBC18)2 and Calix[4]arene

Pang, Shu-Feng; Ye, Zhifeng; Li, Chun; Liang, Yingqiu

doi:10.1006/jcis.2001.7676

Cited by 18 publications

(13 citation statements)

References 19 publications

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“…The areas of vertically orientated hexd-en and C 16 TAB are about 0.20 nm 2 , and that of 2C 12 DAB must be 0.40 nm 2 because of the double chains. For a completely immiscible or ideally mixed monolayer, the molecular area of the hybrid monolayer should follow the additivity rule, − and we can obtain the total molecular area of the ZnPP/surfactant (1:2) hybrid by using the equation A calcd = A ZnPP + 2 A surfactant . The calculated total molecular areas of these mixed systems ( A calcd ) are also listed in Table .…”

Section: Resultsmentioning

confidence: 99%

Protoporphyrin IX Zinc(II) Organization at the Air/Water Interface and Its Langmuir−Blodgett Films

and

Imae

2002

Langmuir

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Protoporphyrin IX zinc(II) (ZnPP) and its mixtures with N-hexadecylethylenediamine, hexadecyltrimethylammonium bromide, and didodecyldimethylammonium bromide in a molar ratio of 1:2 were used to investigate the Langmuir monolayer and Langmuir-Blodgett (LB) film behaviors. The well-defined Langmuir monolayers were formed at the air/water interface for ZnPP alone and its hybrids with surfactants. While the ultraviolet-visible spectrum of ZnPP alone indicated the formation of an H-aggregate in the LB film from the blue shift of the Soret band, the introduction of surfactants into the ZnPP LB film reduced the π-π interaction between ZnPP macrocycles. Linear dichroism revealed that the average orientation angle of the protoporphyrin macrocycle against the substrate surface was in the range of 39.5-44.5°in a ZnPP LB film and three ZnPP/surfactant LB films. Fourier transform infrared spectra of the LB films suggested that the alkyl chains of the surfactants take a disordered gauche conformation and porphyrin carboxylic acids partly converted to carboxylates with the introduction of surfactants. The atomic force microscopic results further confirmed the formation of homogeneous LB monolayers. These results demonstrate that there is preferable mutual miscibility in ZnPP/surfactant hybrids, and no isolated phase or domain formed by the surfactants exists in the hybrid LB films.

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Section: Resultsmentioning

confidence: 99%

Protoporphyrin IX Zinc(II) Organization at the Air/Water Interface and Its Langmuir−Blodgett Films

and

Imae

2002

Langmuir

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“…(The inset shows the structure of TbOH/GdOH.) low the additivity rule for a completely immiscible or ideally mixed monolayer [25][26][27] and we can obtain the total molecular area of the TbOH/SA mixture by using the equation…”

Section: Instrumentsmentioning

confidence: 99%

Effects of a central metal on the organization of 5,10,15,20-tetra-(p-chlorophenyl)–rare earth porphyrin hydroxyl compound at the air/water interface and in Langmuir–Blodgett films

Itoh

et al. 2005

Journal of Colloid and Interface Science

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“…The results also proved that Schiff-Base Complex with short hydrophobic chain had the lower collapse pressure [18]. From the experimental resuIts it can be seen that monolayers of B3TIE could be transferred onto hydrophilic glass slides as a Z-type film under surface pressure of 8~16 mN/m by Langmuir-Blodgett technique, indicating that the LB films were uniform and stable [19,21]. The isotherm showed the molecular area is ~48 Å 2 /molecule at 12 mN/m.…”

Section: Behavior Of the Langmuir Monolayer And Lb Filmsmentioning

confidence: 74%

Studies on monolayer and langmuir-blodgett films of schiff-base complex 1,2-bis(3-thiophene imine) ethylene

Zou¹,

Xu²,

Li³

et al. 2016

Proceedings of the 2016 International Conference on Innovative Material Science and Technology (IMST 2016)

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The Langmuir-Blodgett (LB) technique makes it possible to prepare a thin film with a controlled thickness at the molecular level and a well-defined molecular orientation. In this work, 1,2-bis(3-thiophene imine) ethylene (B3TIE) were synthesized by reacting benzaldehyde and Ethylenediamine and were characterized by MS, IR, 1 HNMR, 13 CNMR. B3TIE monolayer and LB films were prepared through LB technology and characterized by Water contact angle analysis, FT-IR, UV-vis, CV and AFM. An electrochemical study of B3TIE monolayer on ITO was carried out. The cyclic voltammetric data revealed that the reduction on ITO was irreversible. Meanwhile, layer structure and surface morphology of LB films were also explored. The results show that monolayer can be transferred onto the hydrophilic substrates to form regular monolayer and multilayers, in which molecular orientation can be observed from the surface morphology.

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Studies on Mixed Monolayers and Langmuir–Blodgett Films of Schiff-Base Complex Cu(SBC18)2 and Calix[4]arene

Cited by 18 publications

References 19 publications

Protoporphyrin IX Zinc(II) Organization at the Air/Water Interface and Its Langmuir−Blodgett Films

Protoporphyrin IX Zinc(II) Organization at the Air/Water Interface and Its Langmuir−Blodgett Films

Effects of a central metal on the organization of 5,10,15,20-tetra-(p-chlorophenyl)–rare earth porphyrin hydroxyl compound at the air/water interface and in Langmuir–Blodgett films

Studies on monolayer and langmuir-blodgett films of schiff-base complex 1,2-bis(3-thiophene imine) ethylene

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