Synthesis and X-ray crystal structure of a selenophenoquinonoid-extended donor, BEDT–BDTS, affording highly conducting tetracyanoquinodimethaneand I3 complexes

Takahashi, Kazuko; Shirahata, Takashi; Tomitani, Kensuke

doi:10.1039/a703428h

Cited by 13 publications

(5 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition, the molecules within the TTF + dimer are parallel to each other, albeit subtly slipped along the c axis and the a axis. This is an unusual arrangement of molecular overlapping pattern compared with other reported “ring over central CC bond” examples, where the TTF-dimers − are not offset along the a axis. A similar overlap pattern also occurs in the adjacent TTF + dimers, i.e., TTF-B and TTF-A′ (Figure IV).…”

Section: Resultsmentioning

confidence: 46%

Spontaneous Redox Synthesis of the Charge Transfer Material TTF₄[SVMo₁₁O₄₀]

Boas

et al. 2012

Inorg. Chem.

View full text Add to dashboard Cite

The charge-transfer material TTF-SV(IV)Mo(11)O(40) (TTF = tetrathiafulvalene) was prepared by a spontaneous redox reaction between TTF and the vanadium-substituted polyoxometalate (n-Bu(4)N)(3)[SV(V)Mo(11)O(40)] in both solution and solid state phases. Single crystal X-ray diffraction gave the stoichiometry TTF(4)[SVMo(11)O(40)]·2H(2)O·2CH(2)Cl(2), with the single V atom positionally disordered with eight Mo atoms over the whole α-Keggin polyanion [SVMo(11)O(40)](4-). Raman spectra support the 1+ charge assigned to the oxidized TTF deduced from bond lengths, and elemental and voltammetric analysis also are consistent with this formulation. Scanning electron microscopy images showed a rod-type morphology for the new charge-transfer material. The conductivity of the solid at room temperature is in the semiconducting range. The TTF and (n-Bu(4)N)(3)[SV(V)Mo(11)O(40)] solids also undergo a rapid interfacial reaction, as is the case with TTF and TCNQ (TCNQ = tetracyanoquinodimethane) solids. EPR spectra at temperatures down to 2.6 K confirm the presence of two paramagnetic species, V(IV) and the oxidized TTF radical. Spectral evidence shows that the TTF-SV(IV)Mo(11)O(40) materials prepared from either solution or solid state reactions are equivalent. The newly isolated TTF-SV(IV)Mo(11)O(40) material represents a new class of TTF-polyoxometalate compound having dual electrical and magnetic functionality derived from both the cationic and anionic components.

show abstract

Section: Resultsmentioning

confidence: 46%

Spontaneous Redox Synthesis of the Charge Transfer Material TTF₄[SVMo₁₁O₄₀]

Boas

et al. 2012

Inorg. Chem.

View full text Add to dashboard Cite

show abstract

“…intermolecular -stacking interactions) [29][30][31]. The -stacking interactions are also observed in chsa-Zn-pyridine.…”

Section: Crystal Studymentioning

confidence: 77%

Synthesis, crystal structures and properties of five-coordinate Schiff-base Zn(II) complexes

Zhu

et al. 2006

Journal of Coordination Chemistry

View full text Add to dashboard Cite

Five-coordinate Schiff-base Zn complexes (1,2-cyclohexanediamino-N,N 0 -bis(salicylidene)) zinc-pyridine 1 and (1,2-cyclohexanediamino-N,N 0 -bis(3,5-di-tert-butylsalicylidene)) zincpyridine 2 were synthesized and the structures of 1 and 2 have been determined by single-crystal X-ray analysis. All Zn atoms are five-coordinate in both structures. Both complexes exhibit interesting structures based on intermolecular -stacking and hydrogen bond interactions. Complex 1 has a one-dimensional molecular chain structure via -stacking interaction, while complex 2 has an interesting lattice structure (with cavities with dimensions 10.9 Â 6.9 Å ) formed through intermolecular -stacking and hydrogen bond interactions. 1 and 2 are compared and characterized by MS, elemental analysis, IR, UV-Vis and Photoluminescence (PL). Fluorescence spectra show that the maximal emission wavelength of 1 and 2 are 454 nm, and 480 nm, respectively, upon radiation by UV light. Cyclic voltammetry performed on 1 and 2 indicate a dependence of the cathodic potentials upon conformational and electronic effects. Electronic spectral properties of 1 and 2 were studied by TD-DFT methods. The fluorescent emission of these complexes originates from ligand-centred -* transitions. The Zn (II) centres play a key role in enhancing the fluorescent emission of the ligands.

show abstract

“…Intermolecular π−π stacking interactions are increasingly found to be common in organic and coordinative networks involving aromatic ring systems and have been deliberately used to control the structures and properties in molecular solid materials. It is well-known that all molecular conductors or semiconductors have a common solid structure feature (i.e., intermolecular π−π stacking interactions). − High mobility has been associated with π−π stacking interactions. The π−π stacking interactions are also observed in the Gaq 3 solid.…”

mentioning

confidence: 99%

“…It is well-known that all molecular conductors or semiconductors have a common solid structure feature (i.e., intermolecular π-π stacking interactions). [12][13][14] High mobility has been associated with π-π stacking interactions. The π-π stacking interactions are also observed in the Gaq 3 solid.…”

mentioning

confidence: 99%

X-ray Crystal Structure of Gallium Tris- (8-hydroxyquinoline): Intermolecular π−π Stacking Interactions in the Solid State

Wang

Zhang

et al. 1999

Chem. Mater.

View full text Add to dashboard Cite

Efficient electroluminescence (EL) from an organic light-emitting device (OLED) was first reported by Tang and Van Slyke using tris(8-hydroxyquinoline)aluminum (Alq 3 ). 1 Since this report, the interest in Alq 3 and other metal-chelate systems to produce EL in different spectral regions for display applications has considerably increased. [2][3][4][5] Although Alq 3 and Gaq 3 have low fluorescence quantum yield, they have excellent properties as EL materials, namely, good charge transport, highly stable film formation, and good heat resistance. Forrest and co-workers have shown that Gaq 3 has a thin film PL quantum efficiency of only 25% of that for Alq 3 .

show abstract

Synthesis and X-ray crystal structure of a selenophenoquinonoid-extended donor, BEDT–BDTS, affording highly conducting tetracyanoquinodimethaneand I3 complexes

Cited by 13 publications

References 23 publications

Spontaneous Redox Synthesis of the Charge Transfer Material TTF₄[SVMo₁₁O₄₀]

Spontaneous Redox Synthesis of the Charge Transfer Material TTF₄[SVMo₁₁O₄₀]

Synthesis, crystal structures and properties of five-coordinate Schiff-base Zn(II) complexes

X-ray Crystal Structure of Gallium Tris- (8-hydroxyquinoline): Intermolecular π−π Stacking Interactions in the Solid State

Contact Info

Product

Resources

About

Synthesis and X-ray crystal structure of a selenophenoquinonoid-extended donor, BEDT–BDTS, affording highly conducting tetracyanoquinodimethaneand I3 complexes

Cited by 13 publications

References 23 publications

Spontaneous Redox Synthesis of the Charge Transfer Material TTF4[SVMo11O40]

Spontaneous Redox Synthesis of the Charge Transfer Material TTF4[SVMo11O40]

Synthesis, crystal structures and properties of five-coordinate Schiff-base Zn(II) complexes

X-ray Crystal Structure of Gallium Tris- (8-hydroxyquinoline): Intermolecular π−π Stacking Interactions in the Solid State

Contact Info

Product

Resources

About

Spontaneous Redox Synthesis of the Charge Transfer Material TTF₄[SVMo₁₁O₄₀]

Spontaneous Redox Synthesis of the Charge Transfer Material TTF₄[SVMo₁₁O₄₀]