Pressure dependence of the Raman spectra of quasi-one-dimensional mixed-valence semiconductors and related complexes

1990 ◽  
Vol 2 (4) ◽  
pp. 366-371 ◽  
Author(s):  
Mary Ann Stroud ◽  
Scott A. Ekberg ◽  
Basil I. Swanson
Keyword(s):  
Raman Spectra ◽  
Pressure Dependence ◽  
Mixed Valence ◽  
One Dimensional

Electronic and Resonance Raman Spectra of Some New Mixed-Valence Compounds of Pt and Pd with a Metal-Halide Chain

1980 ◽  
Vol 35 (6) ◽  
pp. 676-679 ◽  
Author(s):  
G. C. Papavassiliou ◽  
D. Layek
Keyword(s):  
Raman Spectra ◽  
Linear Chain ◽  
Mixed Valence ◽  
Resonance Raman ◽  
Chain Structure ◽  
One Dimensional ◽  
Resonance Raman Spectra ◽  
The One ◽  
Mixed Valence Compounds ◽  
Linear Chain Structure

Abstract The electronic and resonance Raman spectra of new mixed-valence compounds of the type M2ʹ[M(L)X3][M(L)X5], where Mʹ = K, NH4, M = Pt or Pd, L = NH3 or pyridine, and X = Cl, Br or I, have been studied. The single-crystal polarized reflectance spectra indicate the one-dimensional semiconductor behaviour. The polarized resonance Raman spectra confirm the --M(II)--X-M(IV)-X linear chain structure, which is in accordance with the X-ray results. The polarization of M-N bands can be explained by the Snyder's theory (1971).

Some New One-dimensional Compounds: Preparation and Optical Properties

1980 ◽  
Vol 35 (1) ◽  
pp. 112-113 ◽  
Author(s):  
D. Layek ◽  
G. C. Papavassiliou
Keyword(s):  
Optical Properties ◽  
Raman Spectra ◽  
Partial Oxidation ◽  
Mixed Valence ◽  
Reflectance Spectra ◽  
One Dimension ◽  
One Dimensional ◽  
Type K ◽  
Resonance Raman Spectra ◽  
Mixed Valence Compounds

New mixed-valence compounds of the type K2[Pt(NH3)X3]-[Pt(NH3)X5] (where X - Cl or Br) were prepared by partial oxidation-addition of K[Pt(NH3)X3] with Cl2 and Br2. The absorption and polarized reflectance spectra of these compounds show a semiconductor behaviour in one dimension and the resonance Raman spectra indicate the ···Pt(II) ···X -Pt(IV)-X chain.

A one-dimensional chloride-bridged PtII/PtIVmixed-valence complex with a 4-[(4-hydroxyphenyl)diazenyl]benzenesulfonate counter-ion

2015 ◽  
Vol 71 (12) ◽  
pp. 1033-1036 ◽  
Author(s):  
Nobuyuki Matsushita ◽  
Ayako Taira
Keyword(s):  
Valence State ◽  
Title Compound ◽  
Linear Chain ◽  
Mixed Valence ◽  
Chain Structure ◽  
Structural Parameter ◽  
One Dimensional ◽  
Square Planar ◽  
Cl Atoms ◽  
Linear Chain Structure

The title compound,catena-poly[[[bis(ethylenediamine-κ2N,N′)platinum(II)]- μ-chlorido-[bis(ethylenediamine)platinum(IV)]-μ-chlorido] tetrakis{4-[(4-hydroxyphenyl)diazenyl]benzenesulfonate} dihydrate], {[PtIIPtIVCl2(C2H8N2)4](HOC6H4N=NC6H4SO3)4·2H2O}n, has a linear chain structure composed of square-planar [Pt(en)2]2+(en is ethylenediamine) and elongated octahedraltrans-[PtCl2(en)2]2+cations stacked alternately, bridged by Cl atoms, along thebaxis. The Pt atoms are located on an inversion centre, while the Cl atoms are disordered over two sites and form a zigzag ...Cl—PtIV—Cl...PtII... chain, with a PtIV—Cl bond length of 2.3140 (14) Å, an interatomic PtII...Cl distance of 3.5969 (15) Å and a PtIV—Cl...PtIIangle of 170.66 (6)°. The structural parameter indicating the mixed-valence state of the Pt atom, expressed by δ = (PtIV—Cl)/(PtII...Cl), is 0.643.

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