Electronic transition in dodekahedral crystal field—I: Cyanocomplexes of molybdenum
TL;DR: In this paper, the dodekahedral Dq values for three 8-coordinated molybdenum cyanides containing one, two or three d-electrons were observed in the visible region.
About: This article is published in Journal of Inorganic and Nuclear Chemistry.The article was published on 1968-02-01. It has received 9 citations till now. The article focuses on the topics: Molecular electronic transition & Crystal.
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76 citations
TL;DR: In this paper, the SCCC MO method has been used to calculate the electronic structure and spectrum of Mo(CN)consuming 8 4−¯¯¯¯ ions of a D4d symmetry, and the overall agreement between the calculated and observed electronic spectrum is satisfactory.
Abstract: The SCCC MO method has been used to calculate the electronic structure and spectrum of Mo(CN)
8
4−
and Mo(CN)
8
3−
ions of a D
4d
symmetry. All metal-ligand and ligand-ligand interactions and all overlap integrals (over products of HF atomic orbitals) have been included within the SCCC MO scheme. Basing on these calculations a new assignment of some absorption bands is proposed. The overall agreement between the calculated and observed electronic spectrum is satisfactory.
17 citations
TL;DR: In this article, the lower oxidation states of molybdenum have been obtained in phosphate, borate and silicate glasses, and in the last two systems without the use of reducing agents.
Abstract: Using suitable melting techniques, the lower oxidation states of molybdenum have been obtained in phosphate, borate and silicate glasses, and in the last two systems without the use of reducing agents. Absorption spectra of glasses containing very low concentrations of molybdenum show that the intensities of the bands depends on concentration so that extinction coefficients cannot be reported. The Mo (III) absorption bands in the borate glasses are at higher energies than in the phosphate but are not so readily analysed on the basis of ligand field theory. Both absorption and emission spectra in the phosphate glass have been measured at liquid helium temperatures and the results of some initial work on the ESR spectra are also reported.
16 citations
TL;DR: In this article, the single crystal Q-band ESR spectrum of the D 2d anion of [ n -Bu 4 N] 3 [Mo(CN) 8 ] has been recorded at room temperature, giving g| = 1.992±0.001 and g ⊥ =1.985± 0.001.
8 citations
TL;DR: The crystal and solution spectra of hydroxy cyanocomplexes of penta-and tetravalent molybdenum have been measured in this paper, and the spectra have been interpreted in terms of the d-d electron transition in a dodecahedral crystal field.
7 citations
References
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Book•
01 Jan 1962
TL;DR: This chapter introduces the theory of transition metal chemistry and its applications in ligand field theory and discusses the role of uranium in this theory.
Abstract: INTRODUCTION TO LIGAND FIELD THEORY BY CARL J. INTRODUCTION TO LIGAND FIELD THEORY VIDEO DAILYMOTION. INTRODUCTION TRANSITION METAL CHEMISTRY LIGAND FIELD THEORY. LIGAND FIELD THEORY WWWCHEM UWIMONA EDU JM. CHAPTER 23 INTRODUCTION TO THE TRANSITION ELEMENTS LIGAND. WILEY LIGAND FIELD THEORY AND ITS APPLICATIONS BRIAN N. CARL J BALLHAUSEN INTRODUCTION TO LIGAND FIELD THEORY. INTRODUCTION TO LIGAND FIELD THEORY
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77 citations
47 citations
TL;DR: The perchromate ion, CrO83, in K3CrO8 has D2d(42m) symmetry and consists of a central pentavalent chromium ion surrounded by four peroxide groups as mentioned in this paper.
Abstract: The perchromate ion, CrO83—, in K3CrO8 has D2d(42m) symmetry and consists of a central pentavalent chromium ion surrounded by four peroxide groups. On the basis of a refinement of the previous structure determination, the chromium ion is nearer to one oxygen of each peroxide group than to the other and the peroxide oxygen—oxygen distance is shorter than normal. A ligand field calculation, based on the optical spectrum and the electron paramagnetic resonance spectrum, accounts for these structural features and leads to a description of the bonding in the perchromate ion.
46 citations
20 citations