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Crystals 2012, 2(2), 662-668; doi:10.3390/cryst2020662
Article

Single-Component Charge-Transfer Crystals Based on Spin-Carrying TCNQ (7,7,8,8-Tetracyanoquinodimethane) Derivatives

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Received: 16 March 2012; in revised form: 1 June 2012 / Accepted: 5 June 2012 / Published: 12 June 2012
(This article belongs to the Special Issue Molecular Conductors)
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Abstract: Three TCNQ derivatives carrying nitroxide radicals (3a3c) were prepared and were found to form single-component charge-transfer (CT) complexes by self-assembly, in which outer nitroxide groups of a couple of different molecules work as donors and the inner TCNQ unit of another molecule as an acceptor. While the CT interactions found for the TEMPO (2,2,6,6-tetramethylpiperidin-1-oxy) derivative 3a and the PROXYL (2,2,5,5-tetramethylpirrolidin-1-oxy) derivative 3b are point-to-face fashion between the oxygen atom of each nitroxide group and the six-membered ring of inner TCNQ unit, the CT interactions found for the PO (2,2,5,5-tetramethyl-3-pyrrolin-1-oxy) derivative 3c are point-to-point contacts between the oxygen atoms of outer nitroxide groups and the carbon atoms of a couple of cyano groups.
Keywords: CT complex; nitroxide; TCNQ; redox property; magnetic property; crystal structure CT complex; nitroxide; TCNQ; redox property; magnetic property; crystal structure
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Suzuki, H.; Akutsu, H.; Yamada, J.-I.; Nakatsuji, S. Single-Component Charge-Transfer Crystals Based on Spin-Carrying TCNQ (7,7,8,8-Tetracyanoquinodimethane) Derivatives. Crystals 2012, 2, 662-668.

AMA Style

Suzuki H, Akutsu H, Yamada J-I, Nakatsuji S. Single-Component Charge-Transfer Crystals Based on Spin-Carrying TCNQ (7,7,8,8-Tetracyanoquinodimethane) Derivatives. Crystals. 2012; 2(2):662-668.

Chicago/Turabian Style

Suzuki, Hideto; Akutsu, Hiroki; Yamada, Jun-ichi; Nakatsuji, Shin’ichi. 2012. "Single-Component Charge-Transfer Crystals Based on Spin-Carrying TCNQ (7,7,8,8-Tetracyanoquinodimethane) Derivatives." Crystals 2, no. 2: 662-668.


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