Author Type

Graduate Student

Date of Award

1977

Document Type

Thesis

Publication Status

Version of Record

Submission Date

October 2026

Abstract

The synthesis, and some aspects of the resulting characterization, are described for a series of eight anion-radical salts, each with tetracyano-p-quinodimethan (TCNQ) as the acceptor and a substituted pyridinium ion as the donor. Four closely related pyridinium ions were used, and the simple (1 : 1) and complex (1 : 2) anion-radical salt of each were successfully prepared. Details of the special measures necessary for the modification of a given method of preparation and / or purification are discussed. A mechanism is proposed for the conversion of simple salts to salts of complex composition based upon disproportionation of the TCNQ anion-radical. Three of the salts yielded single crystals large enough for studies of crystal morphology, and electrical conductivity. Conductivities of all eight salts, determined on compactions, were measured as a function of temperature between 300 and 100K. Apparently, within this series of compounds, the entire range of conduction behavior-insulators, semiconductors, and a possible semimetal-has been achieved.

Extent

112 p.

Comments

Thesis (M.S.)--Florida Atlantic University, 1977.|Thesis (M.S.)--Florida Atlantic University, 1977.

Identifier

FADT13851

Format

pdf

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