Preparation and Electronic Structure of Substituted Aromatic Dithiolene Complexes of Gold(III)

Schiødt, Niels Christian; Sommer‐Larsen, Peter; Bjørnholm, Thomas; Nielsen, M.; Larsen, Jan; Bechgaard, K.

doi:10.1021/ic00118a016

Cited by 42 publications

(38 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This transition is expected for an isolated Au͑bdt͒ 2 molecule since Au͑bdt͒ 2 is isoelectronic with the well characterized Ni͑bdt͒ 2 Ϫ complexes possessing intense near-infrared transitions due to -* transition in the ligands. 21 Another possibility is a charge-transfer transition between molecules in adjacent stacks. This interaction could be mediated by the short sulfur-sulfur interstack contact; however, it should be expected to be considerably weaker than the intrastack interaction.…”

Section: Resultsmentioning

confidence: 99%

“…17 Ab initio calculations on the isolated Au͑bdt͒ 2 molecule show the highest occupied and singly occupied molecular orbitals ͑HOMO and SOMO͒ to be almost the pure bonding and antibonding combinations of the ligand HOMO's, and also to be very close in energy. 21 This indicates that the central gold atom provides only a weak coupling between the two ligands; much the same situation as in the Ni͑dmit͒ 2 -type species. 22,23 We report here the electrical, optical, and magnetic properties of single crystals of the title compound Au͑bdt͒ 2 .…”

Section: Introductionmentioning

confidence: 86%

See 1 more Smart Citation

Structural, electrical, magnetic, and optical properties of bis-benzene-1,2-dithiolato-Au(IV) crystals

et al. 1996

Self Cite

View full text Add to dashboard Cite

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 86%

Structural, electrical, magnetic, and optical properties of bis-benzene-1,2-dithiolato-Au(IV) crystals

et al. 1996

Self Cite

View full text Add to dashboard Cite

“…Since the first molecular superconductor based on a metal dithiolene complex was reported, a charge transfer salt (TTF)[Ni(dmit) 2 ] 2 , a large number of neutral complexes containing dithiolene ligands with a TTF backbone have been synthesized, such as Au(ptdt) 2 , and Au(tmdt) 2 , showing metallic or near metallic behavior at ambient temperature and pressure. Neutral gold dithiolene complexes without TTF containing ligands have also been reported, such as Au(α‐tpdt) 2 and Au(bdt) 2 , showing a wide variety of conductive properties, from semiconductor to metallic . Several complexes in the thiazole dithiolate family have been reported showing activated conductivity under ambient conditions, with some showing metal‐like conductivity under pressure, and one showing metallic behavior under ambient conditions …”

Section: Introductionmentioning

confidence: 99%

High Ambipolar Mobility in a Neutral Radical Gold Dithiolene Complex

Mizuno

Benjamin

Shimizu

et al. 2019

Adv Funct Materials

View full text Add to dashboard Cite

A new anionic gold dithiolene complex NBu 4 ·[1] is synthesized from the (1-((1,1-biphenyl)-4-yl-)-ethylene-1,2-dithiolene ligand 1, and the cis and trans isomers are separated by recrystallization. The trans isomer is oxidized via electrocrystallisation to the neutral gold dithiolene complex 2. Complex 2 crystalizes in 1D chains, held together by short (3.30-3.37 Å) S-S contacts, which are packed in a herringbone arrangement in the ab-plane. The complex exhibits semiconductor behavior (σ RT = 1.5 × 10 −4 S cm −1 ) at room temperature with a small activation energy (E a = 0.11 eV), with greater conductivity along the stacking direction. The charge transport behavior of complex 2 is further investigated in single-crystal field-effect transistor (FET) measurements, the first such measurements reported for gold dithiolene complexes. Complex 2 shows incredibly balanced ambipolar behavior in the single-crystal field-effect transistor (SC-FET), with high charge-carrier mobilities of 0.078 cm 2 V −1 s −1 , the highest ambipolar mobilities reported for metal dithiolene complexes. This well-balanced behavior, along with the activated conductivity and band structure calculations, suggests that 2 behaves as a Mott insulator. The magnetic properties are also studied by superconducting quantum interference device (SQUID) magnetometry and solid state 1 H NMR, with evidence of a nonmagnetic ground state at low temperature.

show abstract

“…Ϫ 1 H and13 C NMR: Varian (300 MHz), [D 6 ]DMSO as solvent, TMS as internal standard. Ϫ IR: PerkinElmer 1330.…”

mentioning

confidence: 99%

Synthesis, Structure and Physical Properties of Tetrabutylammonium Salts of Nickel Complexes with the New Ligand dcbdt = 4,5-dicyanobenzene-1,2-dithiolate, [Ni(dcbdt)2]z− (z = 0.4, 1, 2)

Simão¹,

Alves²,

Belo³

et al. 2001

Eur. J. Inorg. Chem.

View full text Add to dashboard Cite

The synthesis and characterization of the new aromatic ortho-dithiol, 4,5-dicyanobenzene-1,2-dithiol (3) is reported. This compound was used to prepare tetrabutylammonium salts of novel nickel complexes; the nickel(II) salt (nBu 4 N) 2 -[Ni(dcbdt) 2 ] (4), the nickel(III) salt (nBu 4 N) 2 [Ni(dcbdt) 2 ] 2 (5), and the partially oxidized Ni III/IV salt (nBu 4 N) 2 [Ni(dcbdt) 2 ] 5 (6). (dcbdt = 4,5-dicyanobenzene-1,2-dithiolate). The Ni II complex presents a square-planar coordination geometry and is diamagnetic, while in the paramagnetic Ni III complex

show abstract

Preparation and Electronic Structure of Substituted Aromatic Dithiolene Complexes of Gold(III)

Cited by 42 publications

References 5 publications

Structural, electrical, magnetic, and optical properties of bis-benzene-1,2-dithiolato-Au(IV) crystals

Structural, electrical, magnetic, and optical properties of bis-benzene-1,2-dithiolato-Au(IV) crystals

High Ambipolar Mobility in a Neutral Radical Gold Dithiolene Complex

Synthesis, Structure and Physical Properties of Tetrabutylammonium Salts of Nickel Complexes with the New Ligand dcbdt = 4,5-dicyanobenzene-1,2-dithiolate, [Ni(dcbdt)2]z− (z = 0.4, 1, 2)

Contact Info

Product

Resources

About