A single crystal EPR study of the platinum (III)-bis (maleonitriledithiolate)-monoanion

Kirmse, R.; Dietzsch, W.; Solovev, B. V.

doi:10.1016/0022-1902(77)80336-9

Cited by 31 publications

(13 citation statements)

References 14 publications

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“…The anisotropic hyperfine coupling tensor has A x Ͻ 4 mT (the satellites are not resolved for this component), A y ϭ 13 mT and A z ϭ 9.3 mT. Assuming a situation similar to Pt(mnt) 2 Ϫ , and the same coordinate system, [24] x is the shortest axis in the plane of the complex, y the longest and z is normal to the plane of the complex.…”

Section: Magnetic Propertiesmentioning

confidence: 98%

“…[25] [Pt(mnt) 2 ] Ϫ , also an undimerised species, studied by Kirmse et al as a diluted paramagnetic centre in a diamagnetic host, shows a large anisotropy of the hyperfine coupling tensor, with A x ϭ 0. [24] In the cis-diammineplatinum α-pyridone complex, a mixed-valence compound, there is dimer formation, with the PtϪPt distance of 2.7745 Å , much shorter than in 9.…”

Section: Magnetic Propertiesmentioning

confidence: 99%

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A Series of Transition Metal Bis(dicyanobenzenedithiolate) Complexes [M(dcbdt)₂] (M = Fe, Co, Ni, Pd, Pt, Cu, Au and Zn)

Alves¹,

Simão²,

Santos³

et al. 2004

Eur J Inorg Chem

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A series of new M[(dcbdt) 2 ]−z complexes of the dicyanobenzodithiolate (dcbdt) ligand with a range of transition metals (M = Co, Pd, Pt, Cu, Au and Zn) in different oxidation states (z = 0.4, 1, 2) were prepared as their nBu 4 N salts and characterised by X-ray diffraction, cyclic voltammetry, EPR and static magnetic susceptibility. Their properties are discussed in comparison with the Ni and Fe analogues described by us recently. The structures of these complexes belong to four distinct groups: i) the Zn II compound 10 is triclinic P1 with the metal in a tetrahedral coordination geometry; ii) other M II complexes [M = Pt (8), Pd (7), Co (3) and Cu (5)] are monoclinic C2/m, and are isostructural with the Ni II analogue, presenting a perfectly planar square geometry; iii) the Co III compound 4 is triclinic P1 , and isostructural with the Fe and Ni analogues, with a strong dimerisation of the M(dcbdt) 2 units

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Section: Magnetic Propertiesmentioning

confidence: 98%

Section: Magnetic Propertiesmentioning

confidence: 99%

A Series of Transition Metal Bis(dicyanobenzenedithiolate) Complexes [M(dcbdt)₂] (M = Fe, Co, Ni, Pd, Pt, Cu, Au and Zn)

Alves¹,

Simão²,

Santos³

et al. 2004

Eur J Inorg Chem

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“…This trend is slightly observed in the dark states of 1-3 and is more evident in the M(dmit) 2 radical anions (M = Ni, Pd, Pt, etc.) under dark conditions, where the hybridization between ligands' πand metals' d-orbitals (π-d mixing) is less important than that in the [Cu(dmit) 2 ] 2´a nions (Table S14 in the Supplementary Materials) [68,[72][73][74][75][76][77][78][79]. In contrast, whether under dark or UV irradiated conditions, the SOMOs of [Cu(dmit) 2 ] 2´a nions have a much higher degree of π-d mixing than that in other metal-dithiolene complex anions.…”

Section: Electron Spin Resonance Under Uv Irradiationmentioning

confidence: 99%

Direct Control of Spin Distribution and Anisotropy in Cu-Dithiolene Complex Anions by Light

2016

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Electrical and magnetic properties are dominated by the (de)localization and the anisotropy in the distribution of unpaired electrons in solids. In molecular materials, these properties have been indirectly controlled through crystal structures using various chemical modifications to affect molecular structures and arrangements. In the molecular crystals, since the energy band structures can be semi-quantitatively known using band calculations and solid state spectra, one can anticipate the (de)localization of unpaired electrons in particular bands/levels, as well as interactions with other electrons. Thus, direct control of anisotropy and localization of unpaired electrons by locating them in selected energy bands/levels would realize more efficient control of electrical and magnetic properties. In this work, it has been found that the unpaired electrons on Cu(II)-complex anions can be optically controlled to behave as anisotropically-delocalized electrons (under dark) or isotropically-localized electrons like free electrons (under UV), the latter of which has hardly been observed in the ground states of Cu(II)-complexes by any chemical modifications. Although the compounds examined in this work did not switch between conductors and magnets, these findings indicate that optical excitation in the [Cu(dmit) 2 ] 2´s alts should be an effective method to control spin distribution and anisotropy.

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“…The g principal values (Table 3) are characteristic for [Pt(mnt) 2 ] À , as was reported previously. [21][22][23][24][25] The principal values of the g and A Pt matrices obtained from simulation of the experimental EPR spectra of the solid platinum samples are collected in Table 3. All the spectra corroborate the presence of a paramagnetic species characterized by a highly rhombic g matrix.…”

Section: Electrical Conductivity Properties the DC Resistance Of The ...mentioning

confidence: 99%

Structural analysis of newly designed platinum compounds with interesting conductivity and optical properties

Finazzo

Fontana

Doorslaer

et al. 2005

Phys. Chem. Chem. Phys.

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A single crystal EPR study of the platinum (III)-bis (maleonitriledithiolate)-monoanion

Cited by 31 publications

References 14 publications

A Series of Transition Metal Bis(dicyanobenzenedithiolate) Complexes [M(dcbdt)₂] (M = Fe, Co, Ni, Pd, Pt, Cu, Au and Zn)

A Series of Transition Metal Bis(dicyanobenzenedithiolate) Complexes [M(dcbdt)₂] (M = Fe, Co, Ni, Pd, Pt, Cu, Au and Zn)

Direct Control of Spin Distribution and Anisotropy in Cu-Dithiolene Complex Anions by Light

Structural analysis of newly designed platinum compounds with interesting conductivity and optical properties

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A single crystal EPR study of the platinum (III)-bis (maleonitriledithiolate)-monoanion

Cited by 31 publications

References 14 publications

A Series of Transition Metal Bis(dicyanobenzenedithiolate) Complexes [M(dcbdt)2] (M = Fe, Co, Ni, Pd, Pt, Cu, Au and Zn)

A Series of Transition Metal Bis(dicyanobenzenedithiolate) Complexes [M(dcbdt)2] (M = Fe, Co, Ni, Pd, Pt, Cu, Au and Zn)

Direct Control of Spin Distribution and Anisotropy in Cu-Dithiolene Complex Anions by Light

Structural analysis of newly designed platinum compounds with interesting conductivity and optical properties

Contact Info

Product

Resources

About

A Series of Transition Metal Bis(dicyanobenzenedithiolate) Complexes [M(dcbdt)₂] (M = Fe, Co, Ni, Pd, Pt, Cu, Au and Zn)

A Series of Transition Metal Bis(dicyanobenzenedithiolate) Complexes [M(dcbdt)₂] (M = Fe, Co, Ni, Pd, Pt, Cu, Au and Zn)