Accession Number:

ADA210497

Title:

Cognition and Order in Langmuir-Blodgett Films of a 3-Hexadecyl Pyrrole and Ferrocene-Derivatized Pyrrole Mixed Monolayer System

Descriptive Note:

Technical rept. Jul 1988-1989

Corporate Author:

LOWELL UNIV MA

Report Date:

1989-03-31

Pagination or Media Count:

14.0

Abstract:

Novel, self-assembled materials have been designed and produced from first principle to possess unique structural hierarchy and electronic and optical properties. The Langmuir-Blodgett technique was used to study the molecular organization of a mixed 3-hexadecyl pyrrole 3HDP and ferrocene- derivatized pyrrole Fc-Py surfactant system. The pyrrole moiety was chosen for its well established electronic and optical properties when polymerized, while ferrocene, it is theorized, if properly oriented into a Langmuir-Blodgett monolayer film may show a layered array of transition metals which would be extremely valuable as a model for two-dimensional magnets. The ferrocene group may also provide the possibility of charge coupling between neutral ferrocene and oxidized ferricenium which could be controlled electrochemically or photochemically. The combination of these two moieties in a highly ordered molecular superlattic coupled with the ability to control the growth technique electrochemically, photochemically or by self-assembly should provide an effective means of directly controlling the materials information content and intelligence. Subsequently, materials may be prepared with widely varying electrical, optical, magnetic and structural properties. It is hoped that the processing of these materials into well ordered architectures will, in addition to optimizing these properties will also lead to smart devices, for example in chemical and biochemical sensing.

Subject Categories:

  • Organic Chemistry
  • Physical Chemistry
  • Radiation and Nuclear Chemistry
  • Polymer Chemistry
  • Optics
  • Solid State Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE