Nanoaggregates of copper porphyrazine in floating layers and Langmuir-Schaefer films

被引：21

作者：

Valkova, Larissa A. ^{[1
]}

Valli, Ludovico ^{[2
]}

Casilli, Serena ^{[2
]}

Giancane, Gabriele ^{[2
]}

Borovkov, Nicholas Yu. ^{[3
]}

Sibrina, Galina V. ^{[3
]}

Glibin, Alexandr S. ^{[1
]}

Koifman, Oscar I. ^{[4
]}

Pisani, Michela ^{[5
]}

Rustichelli, Franco ^{[6
]}

机构：

[1] Ivanovo State Univ, Ivanovo 153025, Russia

[2] Univ Lecce, Dipartimento Ingn Innovaz, I-73100 Lecce, Italy

[3] RAS, Inst Solut Chem, Ivanovo 153045, Russia

[4] Ivanovo State Univ Chem & Technol, Ivanovo 153460, Russia

[5] Polytech Univ Marche, Dipartimento Sci & Tecnol Chim, Sez Sci Fis, I-60131 Ancona, Italy

[6] Polytech Univ Marche, Dipartimento SASC, Sez Sci Fis, Ist Nazl Biostrutture & Biosistemi, I-60131 Ancona, Italy

来源：

LANGMUIR | 2008年 / 24卷 / 09期

关键词：

D O I：

10.1021/la703585p

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Aggregation behavior of unsubstituted copper porphyrazine (CuPaz) on the water surface was studied by analysis compression curves, Brewster angle microscopy (BAM), and optical spectroscopy. The structure and stability of the CuPaz aqua aggregates in the floating layers are determined by hydration degree that depends on initial surface concentration and surface pressure. Langmuir-Schaefer (LS) films of CuPaz were prepared by deposition of the variously structured floating layers and studied by X-ray scattering technique and optical spectroscopy. Stable and labile structures were detected and compared with the floating CuPaz aqua aggregates. Conditions of formation of the stable four-stacked nanoaggregates in LS films were determined. A model comprising both nucleation of CuPaz on the water surface and structural transformations in the solid films is proposed.

引用

收藏

页码：4857 / 4864

页数：8

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