Synthesis and characterization of nanostructured axially-ligated metallophthalocyanine polymer

Date of Publication

2013

Document Type

Master's Thesis

Degree Name

Master of Science in Chemistry

College

College of Science

Department/Unit

Chemistry

Abstract/Summary

Phthalocyanines (Pcs) are promising molecular conductors due to their fully conjugated structure. Face-to-face stacking of Pcs forms intermolecular -electron overlap, giving way to electron transport. Incorporation of Fe metal in its center allows attachment of SCN-axial ligands for structural versatility that will enhance electron transport. Polymerization can be achieved through SCN axial ligand bridge, which will further extend the highly delocalized -electron of macrocyle, as well as the electron conduction through the axial-ligand bridge. In this study, (ľ-thiocyanato)phthalocyaninatoiron(III), [FePcSCN]n is synthesized by a reported bridged MPc polymerization method. Iron phthalocyanine is reacted with thionyl chloride, producing dichlorophthalocyaninatoiron(II), FePcCl2. Then, FePcCl2 is reacted with potassium thiocyanate producing potassium dithiocyanatophathalocyaninatoiron(III), K[FePc(SCN)2], which is suspended in water at 95oC producing [FePcSCN]n. The polymer is converted to nanostructure via Horizontal Vapor Phase Growth Technique. The electrical conductivities of K[FePc(SCN)2], [FePcSCN]n and nanostructured [FePcSCN]n are determined using Van der Pauw method. FePc conductivity increased from K[FePc(SCN)2] to [FePcSCN]n to nano [FePcSCN]n. Nanosynthesis of [FePcSCN]n provides more efficient, multidimensional electron transport.

Abstract Format

html

Language

English

Format

Electronic

Accession Number

CDTG005333

Shelf Location

Archives, The Learning Commons, 12F Henry Sy Sr. Hall

Physical Description

1 computer optical disc ; 4 3/4 in.

Keywords

Phthalocyanines; Polymerization; Nanostructures

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