Nickel(IV) Bis-(3)-1,2-dicarbollide as an Acceptor Molecule in the Synthesis of Electrically Conducting Charge Transfer Complexes

1995 ◽  
Vol 14 (2) ◽  
pp. 666-675 ◽  
Author(s):  
Peter A. Chetcuti ◽  
Walther Hofherr ◽  
Andre Liegard ◽  
Grety Rihs ◽  
Guenther Rist ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Charge Transfer Complexes ◽  
Acceptor Molecule ◽  
Electrically Conducting

Elementorganische Verbindungen mit ö-Phenylenresten, XI [1] 3:l-Komplexe von Hexachlor-dibenzo-p-dioxin-2,3-chinon mit 2,3,7,8-Tetramethoxythianthren und -selenanthren / Organometallic Compounds with o-Phenylene Substituents, Part XI [1] 3:1 Complexes of Hexachloro-dibenzo-p-dioxin-2,3-quinone with 2,3,7,8-Tetram ethoxythianthrene and Selenanthrene

1986 ◽  
Vol 41 (9) ◽  
pp. 1133-1141 ◽  
Author(s):  
Winfried Hinrichs ◽  
Peer Berges ◽  
Günter Klar
Keyword(s):  
Charge Transfer ◽  
Organometallic Compounds ◽  
Charge Transfer Complexes ◽  
Acceptor Molecule ◽  
Front Side ◽  
Concentrated Solutions ◽  
The Mean ◽  
Dark Blue

Abstract The title com pounds can be isolated from concentrated solutions of 2,3,7,8-tetramethoxy thianthrene or selenanthrene and tetrachloro-o-benzoquinone as dark blue crystals. Bond distances and bond and folding angles of the components indicate these com pounds to be charge transfer complexes in which the tetramethoxy thianthrene or selenanthrene molecules act as donors (D), the hexachloro-dibenzo-p-dioxin-2,3-quinone molecules as acceptors (A). In the asymmetric units of the two isostructural complexes an acceptor, a donor and another acceptor molecule are arranged parallel to each other. A third acceptor molecule is placed at the front side of the A1 ,D ,A2-arrangement. In the crystal the A1, D, A2,(A3) units are connected by centres of symmetry leading to A1 ,D ,A2 , A1',D',A2', . . . stacks in which the aryl rings of the halves of the molecules are equidistant and parallel to each other. The mean distances between the rings are 340 and 345 pm, respectively

Magnetic properties of new charge-transfer complexes based on manganese porphyrins

1997 ◽  
Vol 90 (3) ◽  
pp. 407-413
Author(s):  
MARC KELEMEN ◽  
CHRISTOPH WACHTER ◽  
HUBERT WINTER ◽  
ELMAR DORMANN ◽  
RUDOLF GOMPPER ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Charge Transfer ◽  
Charge Transfer Complexes ◽  
Manganese Porphyrins

Charge Transfer Complexation Boosts Molecular Conductance Through Fermi Level Pinning

2018 ◽  
Author(s):  
Kun Wang ◽  
Andrea Vezzoli ◽  
Iain Grace ◽  
Maeve McLaughlin ◽  
Richard Nichols ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Single Molecule ◽  
Quantum Interference ◽  
Transmission Function ◽  
Scanning Tunneling ◽  
Charge Transfer Complexes ◽  
Tunneling Microscopy ◽  
Quantum Interference Effect ◽  
Single Molecule Junctions ◽  
Charge Transfer Complexation

We have used scanning tunneling microscopy to create and study single molecule junctions with thioether-terminated oligothiophene molecules. We find that the conductance of these junctions increases upon formation of charge transfer complexes of the molecules with tetracyanoethene, and that the extent of the conductance increase is greater the longer is the oligothiophene, i.e. the lower is the conductance of the uncomplexed molecule in the junction. We use non-equilibrium Green's function transport calculations to explore the reasons for this theoretically, and find that new resonances appear in the transmission function, pinned close to the Fermi energy of the contacts, as a consequence of the charge transfer interaction. This is an example of a room temperature quantum interference effect, which in this case boosts junction conductance in contrast to earlier observations of QI that result in diminished conductance.<br>

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