Can I read Dye–polyoxometalate composite films: Self-assembly, thermal and photochemical properties on EtoBox?

Dye–polyoxometalate composite films: Self-assembly, thermal and photochemical properties by Shuiying Gao; Rong Cao; Chunpeng Yang is a Chemistry article available to read on EtoBox.

What is Dye–polyoxometalate composite films: Self-assembly, thermal and photochemical properties about?

A series of dye-polyoxometalate composite films were prepared by alternately depositing cationic dye molecules and anionic polyoxometalates such as Keggin-type [BW 12 O 40 ] 5-and the sandwich complex [Co 4 (H 2 O) 2 (PW 9 O 34 ) 2 ] 10-via layer-by-layer (LbL) self-assembly method. These cationic dye molecules (MB, AA, TH, BB3, BCB and NB) are heterocyclic planar and rigid phenothiazine and phenoxazine dye molecules with different substituting groups in the side chains. The self-assembly of the films was studied by UV-vis and IR spectra. The results show that the substituting groups of dye molecules such as -NH 2 and -CH 2 CH 3 have influence on the self-assembly properties. The continuous and regular growth of the films was also dependent upon hydrogen bonding (N-H. . .O) formed between the amino groups of dye molecules and oxygen atoms of POMs as well as electrostatic interactions. The investigation of thermal and photochemical treatments of the composite films is also presented. The thermal stability experiments indicate that the composite films of TH with two -NH 2 substitute groups and NB with more π -conjugated system exhibit high thermal stability, whereas the sunlight irra

Who reads Dye–polyoxometalate composite films: Self-assembly, thermal and photochemical properties?

Author

Shuiying Gao; Rong Cao; Chunpeng Yang

Publisher

Elsevier Science; Elsevier ; Elsevier Inc.; Elsevier BV (ISSN 0021-9797)

Published

2008

Language

EN

Field

Chemistry (Physical Sciences)