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Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ)

ΑΖΩΤΟΥΧΑ ΠΑΡΑΓΩΓΑ ΤΟΥ ΤΕΤΡΑΘΕΙΑΦΟΥΛΒΑΛΕΝΙΟΥ ΚΑΙ ΤΕΤΡΑΣΕΛΗΝΑΦΟΥΛΒΑΛΕΝΙΟΥ ΚΑΙ ΑΓΩΓΙΜΑ ΑΛΑΤΑ ΑΥΤΩΝ

Abstract

dc:description

SYMMETRICAL TETRATHIAFULVALENES AND TETRASELENAFULVALENES (Π- DONORS) CONTAINING NITROGEN ATOMS WERE SYNTHESIZED AND CHARACTERIZED BY ELEMENTAL ANALYSIS AND VARIOUS SPECTROSCOPIC TECHNIQUES. NITROGEN ATOMS HAVE BEEN INTRODUCED IN Π-DONORS MOLECULE IN THE FORM OF PYRAZINE, QUINOXALINE PARIDINOPYRAZINE AND PYRIDINE RINGS. SEVERAL OF THE CONDUCTIVE RADICAL SALTS OF THE SYNTHESIZED Π-DONORS WERE PREPARED BY ELECTROCRYSTALLIZATION OF THE DONOR IN THE PRESENCE OF BU4NX (WHEREX:ANION). SEVERAL OF THESE SALTS WERE STUDIED BY X-RAY CRYSTALLOGRAPHY AND U.V. VIS SPECTROSCOPY, IN EITHER REFLECTANCE OR ABSORPTION MODE. ELECTRICAL MEASUREMENTS ON THE CONDUCTIVE SALTS WERE ALSO PERFORMED. THE RESULTS OF THESE STUDIES HAVE SHOWN THAT ALL OF THESE EXAMINED SALTS ARE SEMICONDUCTORS MAINLY ANISOTROPIC, BUT SOME OF THEM BECOME ALMOST ISOTROPIC AT LOW TEMPERATURES.

Degree

thesis:*
Grantor dc:publisher
Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ)
Year dc:date
1987

Author and committee

dc:creator, dc:contributor.*
Author dc:creator
  • Γιαννόπουλος, Στέλιος

Subjects

dc:subject × 16

Rights

Language dc:language
gre

Identifiers

dc:identifier.*
Identifier
10.12681/eadd/0544
OAI identifier oai:identifier
oai:10442/0544

Chain of custody

source
Harvested from
Greek National Archive of PhD Theses
Base URL
phdtheses.ekt.gr/eadd_oai/request
Last updated
2026-07-24
Source record
OAI-PMH GetRecord
citation

Γιαννόπουλος, Στέλιος. ΑΖΩΤΟΥΧΑ ΠΑΡΑΓΩΓΑ ΤΟΥ ΤΕΤΡΑΘΕΙΑΦΟΥΛΒΑΛΕΝΙΟΥ ΚΑΙ ΤΕΤΡΑΣΕΛΗΝΑΦΟΥΛΒΑΛΕΝΙΟΥ ΚΑΙ ΑΓΩΓΙΜΑ ΑΛΑΤΑ ΑΥΤΩΝ. Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ), 1987. http://hdl.handle.net/10442/hedi/0544