Journal ArticleDOI
A comparison of 3-D Cu-DCNQI with 1-D Tl-DCNQI by ESR and NMR
TLDR
Among the large variety of highly conductive DCNQI-salts with metallic counterions, only (Me,Me-DCNQIs)2Cu and Tl-DCNs 2Tl exhibit NMR behavior like the metals Tl and Cu, respectively, i.e. considerable Knight shifts and longitudinal relaxation rates of Cu and Tls nuclei as discussed by the authors.About:
This article is published in Synthetic Metals.The article was published on 1991-05-15. It has received 8 citations till now. The article focuses on the topics: Knight shift.read more
Citations
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Journal ArticleDOI
N,N'-dicyanoquinone diimines (DCNQIs): versatile acceptors for organic conductors.
Siegfried Hünig,Edith Herberth +1 more
Journal ArticleDOI
Electron spin resonance: a major probe for molecular conductors.
Claude Coulon,Rodolphe Clérac +1 more
Journal ArticleDOI
Magnetic and Structural Properties of Mixed-Valence Molecular Conductors (DMeDCNQI) 2 Cu and (DMeODCNQI) 2 Cu
Seiichi Kagoshima,Noriaki Sugimoto,Toshihito Osada,Akiko Kobayashi,Reizo Kato,Hayao Kobayashi +5 more
TL;DR: In this article, temperature dependence of magnetic susceptibilities and lattice parameters is measured at ambient pressure in the title compounds, which are metallic down to the lowest temperature measured and have a mixed valence state of Cu.
Journal ArticleDOI
Alloyed deuterated copper‐DCNQI salts: Phase transitions and reentry of conductivity, giant hysteresis effects, and coexistence of metallic and semiconducting modes
Dagmar Bauer,Jost Ulrich von Schütz,Hans Christoph Wolf,Siegfried Hünig,Klaus Sinzger,Reinhard K. Kremer +5 more
Journal ArticleDOI
Energy band structure and metal–organic interactions in tetracyanoquinodimethane (TCNQ) and N,N′-dicyanoquinonediimine (DCNQI) materials
TL;DR: In this paper, the interplay of metal orbitals in metal TCNQ (7,7,8,8-tetracyanoquinodimethane) and DCNQI (N,N′-dicyanoquinonediimine) complexes is investigated on the basis of molecular orbital calculations.
References
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Journal ArticleDOI
The organic π-electron metal system with interaction through mixed-valence metal cation: Electronic and structural properties of radical salts of dicyano-quinodiimine, (DMe-DCNQI)2Cu and (MeCl-DCNQI)2Cu
TL;DR: In this article, the structural and electrical properties of new radical anion salts of dicyanoquinodiimine derivatives have been investigated (R1,R2-DCNQI)2M (R 1,R 2-CH3,Cl, MCu).
Journal ArticleDOI
Radical anion salts of N,N′-dicyanoquinonediimine (DCNQI): Conductivity and magnetic properties
Hans-Peter Werner,J.U. von Schütz,H.C. Wolf,R. K. Kremer,M. Gehrke,Alexander Aumüller,Peter Erk,Siegfried Hünig +7 more
TL;DR: In this paper, a CDW driven phase transition is seen and antiferromagnetic resonance (AFMR) is found below 10 K. The lack of any ESR signal in the conducting state is due to strong spin-orbit coupling (SOC) given by the nitrogen(p)-Cu(d) admixture.
Journal ArticleDOI
The conducting salts of N,N′-dicyanoquinonediimine (DCNQI)
J.U. von Schütz,M. Bair,H.‐J. Gross,U. Langohr,Hans-Peter Werner,H.C. Wolf,D. Schmeiβer,K. Graf,Wolfgang Göpel,Peter Erk,H. Meixner,Siegfried Hünig +11 more
TL;DR: In this paper, a series of X,Y-N,N′-DCNQI salts with metallic counterions are presented (X,Y = H, CH3 ≡ Me, Cl, Br, I), and the comparison of conductivity, ESR (linewidth and susceptibility) and NMR (Proton spin relaxation) of these radical anions salts indicates that all salts can be separated into two groups: salts containing copper as counterion, which can be characterised as organic metals (at least at high temperatures); and salts with other counterions, whose
Journal ArticleDOI
The electronic structure of (2-X-5-M-DCNQI)2Cu
TL;DR: Using XPS and UPS photoelectron spectroscopy, the electronic structure of single-crystalline needles of 2-Cl-5-M-, 2-Br-5M- and 2,5-DM-substituted (DCNQI) 2 Cu charge-transfer salts, prepared in situ, was studied in this article.