Ordered Langmuir-Blodgett Films of Novel Sandwich-Type Heteroleptic (Porphyrinato) (Phthalocyaninato) Europium Complex

Abstract:

Ordered molecular assemblies of novel sandwich-type heteroleptic (porphyrinato) (phthalocyaninato) europium complex (a double-decker compound) molecules were fabricated by Langmuir–Blodgett technique. The monolayer behaviors of the complex molecules were investigated using a series of techniques including surface pressure-area isotherm measurement, UV-vis spectroscopy, polarized UV-vis spectroscopy, and low-angle X-ray diffractometry. The results indicated that double-decker complex molecules form well-ordered and stable monolayers with a face-to-face configuration and edge-on arrangement to the water surface at the air-water interface as well as J-aggregates in lamellar multilayers on solid substrates. The orientation angle of the macrocycle in the double-decker compound with respect to the quartz slice surface in the LB films have been determined on the basis of the polarized absorbance and were found to be ca. 42^o.

• Periodical: Advanced Materials Research (Volumes 399-401)
• Pages: 1097-1101
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.399-401.1097
• Online since: November 2011
• Authors: Qing Yun Liu, Qing Ru Zhao, Hong Guo Liu, Yong Li
• Keywords: Heteroleptic, Langmuir-Blogett, Phthalocyanine, Porphyrin, Sandwich-Type

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