Metal isotope effect on metal-ligand vibrations—VIII

Saito, Yutaka; Cordes, Marcia; Nakamoto, Kazuo

doi:10.1016/0584-8539(72)80115-6

Cited by 53 publications

(7 citation statements)

References 13 publications

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“…However, we do not attempt here to revise these assignments, as they are of limited chemical interest, and their unambiguous assignment is not possible for the other [L 2 MX 2 ] complexes studied in the presented work. The only band that we have assigned in all cases is the one that is most sensitive to changes in X , and this is assigned to the δ( XMX ) bending mode, in agreement with previously published work 58,60…”

Section: Resultssupporting

confidence: 91%

“…The compounds [(py) 2 Zn X 2 ] have been the subject of detailed vibrational spectroscopic studies in the past,56–60 including application of the metal isotope substitution method for the assignment of the metal‐ligand vibrations 58,59. The spectra of the presented compounds are in excellent agreement with those previously published, especially with the most recent ones,58,60 and the assignments in Table 4 are mostly in agreement with those previously published. However, there are two significant points of difference:…”

Section: Resultssupporting

confidence: 83%

“…(b) Concerning the assignments of ν(Zn X ) + ν(ZnN) in the [L 2 Zn X 2 ] complexes, the previously published assignments for [(py) 2 Zn X 2 ] have ν(Zn X ) > ν(ZnN) for all X 58. While this is clearly reasonable for X = Cl, where there is a significant difference between the wavenumbers for the two different kinds of vibration, the situation is less clear for X = Br, I.…”

Section: Resultsmentioning

confidence: 99%

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Structural and Infrared Spectroscopic Studies of Some Adducts of Divalent Metal Dihalides (MX₂, M = Zn, Cd; X = CI, Br, I) with Variously Hindered Monodentate Nitrogen (Pyridine) Base Ligands (L = Pyridine, 2‐Methylpyridine, and Quinoline) of 1:2 Stoichiometry

Bowmaker

Effendy

Fariati

et al. 2011

Zeitschrift anorg allge chemie

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Single crystal X-ray structure determinations are described for a number of adducts of 1:2 MX 2 :L stoichiometry, [M = divalent metal (Zn, Cd); X = halide (Cl, Br, I), L = (variously hindered) monodentate nitrogen (pyridine) base: py = pyridine, 2-mpy = 2-methylpyridine, quin = quinoline]: [(2-mpy) 2 ZnX 2 ] (X = Cl, Br) (isotypic, triclinic P1, a ≈ 7.9 6 , b ≈ 8.7, c ≈ 11.4 Å, α ≈ 86, β ≈ 79.3, γ ≈ 67°, Z = 2), [(2-mpy) 2 ZnI 2 ], [(quin) 2 ZnX 2 ] (X = Br) (isotypic with the previously determined chloride, X = Cl, triclinic, P1, a ≈ 8.7, b ≈ 9.6, c ≈ 11.1 Å, α ≈ 81, β ≈ 73, γ ≈ 72°, Z = 2); [(quin) 2 ZnI 2 ]; [(2-mpy) 2 CdX 2 ], X = Br {isotypic with [(2-mpy) 2 ZnX 2 ], X = Cl, Br (above)}, X = I {isotypic with [(2-mpy) 2 ZnI 2 ] (above)}; [(quin) 2 CdI 2 ]. A single molecule, with a four-coordinate quasi-tetrahedral metal atom, N 2 MX 2 , comprises the asymmetric unit of the structure in each of these. A one-dimensional * Prof. G. A. Bowmaker Fax: +64-9-3737422 E-Mail: ga.bowmaker@auckland.ac.nz [a]

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Section: Resultssupporting

confidence: 91%

Section: Resultssupporting

confidence: 83%

Section: Resultsmentioning

confidence: 99%

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Structural and Infrared Spectroscopic Studies of Some Adducts of Divalent Metal Dihalides (MX₂, M = Zn, Cd; X = CI, Br, I) with Variously Hindered Monodentate Nitrogen (Pyridine) Base Ligands (L = Pyridine, 2‐Methylpyridine, and Quinoline) of 1:2 Stoichiometry

Bowmaker

Effendy

Fariati

et al. 2011

Zeitschrift anorg allge chemie

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“…[21] In pyridine complexes like [Zn-(py) 2 X 2 ], M-Py vibrations have been assigned by the isotope technique in the region of 200 to 225 cm -1 . [27,26] Interestingly, 3 displays only one strong peak in this region at 254 cm -1 , probably due to the symmetric square-planar coordination environment of the metal atom, while the spectra of 1 and 2 contain several peaks. The UV/Vis spectra in the solid state display a shift in the absorption onset on going from 1 (450 nm) to 2 (430 nm) to 4 (395 nm) to 3 (366 nm) in such a way that the zinc complex 1 absorbs at higher wavelengths (lower energy) than the other complexes 2, 3, 4.…”

Section: Resultsmentioning

confidence: 95%

Synthesis and Structure of the Group 12 Pyrimidinethiolate Complexes _∞³[Zn(S‐2‐N₂C₄H₃)₂], _∞²[Cd(S‐2‐N₂C₄H₃)₂], [Hg(S‐2‐N₂C₄H₃)₂] and[Cd(S‐2‐N₂C₄H₃)₂(tmeda)]

Eichhöfer¹,

Buth²

2005

Eur J Inorg Chem

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The pyrimidinethiolate complexes ∞3[Zn(S‐2‐N2C4H3)2],∞2[Cd(S‐2‐N2C4H3)2] and [Hg(S‐2‐N2C4H3)2] have been prepared by reaction of MCl2 (M = Zn, Cd, Hg) with 2 equiv. of Me3SiS‐2‐N2C4H3 in organic solvents, whilst [Cd(S‐2‐N2C4H3)2(tmeda)] was obtained by recrystallisation of∞2[Cd(S‐2‐N2C4H3)2] in TMEDA at 40 °C. The structures of the complexes were determined by single‐crystal X‐ray crystallography, which shows that the different metal atoms each have different coordination environments. The zinc atom in ∞3[Zn(S‐2‐N2C4H3)2] exhibits a tetrahedral coordination with one sulfur and three nitrogen atoms from pyrimidinethiolate ligands, whereas the cadmium atoms in ∞2[Cd(S‐2‐N2C4H3)2] and [Cd(S‐2‐N2C4H3)2(tmeda)] are six‐coordinate with either three sulfur and three nitrogen atoms or two sulfur and four nitrogen atoms. In contrast, the mercury atoms in [Hg(S‐2‐N2C4H3)2] display a distorted square‐planar coordination to a pair of chelating –S‐2‐N2C4H3 ligands with additional weak Hg–S interactions to adjacent molecules. While known cadmium and zinc pyrimidinethiolate complexes consist of one‐dimensional chains, ∞3[Zn(S‐2‐N2C4H3)2] and ∞2[Cd(S‐2‐N2C4H3)2] form either three‐ or two‐dimensional polymeric networks of metal atoms. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)

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“…v(M-N) for pyridine complexes is normally below 300 cm-' [26] and for [ZnCI, . py,] they are below 225 cm-' [27].…”

Section: Spectroscopic Analysis Of the Adductsmentioning

confidence: 97%

The synthesis and properties of adducts between poly(4‐vinyl pyridine) and metal alkyls

Foster

Cole‐Hamilton

1994

Polymers for Advanced Techs

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Poly(4‐vinyl pyridine) is used as a polymeric ligand to react with metal alkyls, MenM (n = 3, M = Al, Ga or In; n = 2, M = Cd or Zn) to form adducts. The adducts are characterized by solid state 13C NMR, infrared spectroscopy, microanalyses and differential scanning calorimetry (DSC). All the adducts are nonpyrophoric and thermally dissociable, so they may have potential both for use in adduct purification processes or for use as safer metal alkyl sources for Metal–Organic Chemical Vapor Deposition.

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Metal isotope effect on metal-ligand vibrations—VIII

Cited by 53 publications

References 13 publications

Structural and Infrared Spectroscopic Studies of Some Adducts of Divalent Metal Dihalides (MX₂, M = Zn, Cd; X = CI, Br, I) with Variously Hindered Monodentate Nitrogen (Pyridine) Base Ligands (L = Pyridine, 2‐Methylpyridine, and Quinoline) of 1:2 Stoichiometry

Structural and Infrared Spectroscopic Studies of Some Adducts of Divalent Metal Dihalides (MX₂, M = Zn, Cd; X = CI, Br, I) with Variously Hindered Monodentate Nitrogen (Pyridine) Base Ligands (L = Pyridine, 2‐Methylpyridine, and Quinoline) of 1:2 Stoichiometry

Synthesis and Structure of the Group 12 Pyrimidinethiolate Complexes _∞³[Zn(S‐2‐N₂C₄H₃)₂], _∞²[Cd(S‐2‐N₂C₄H₃)₂], [Hg(S‐2‐N₂C₄H₃)₂] and[Cd(S‐2‐N₂C₄H₃)₂(tmeda)]

The synthesis and properties of adducts between poly(4‐vinyl pyridine) and metal alkyls

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Metal isotope effect on metal-ligand vibrations—VIII

Cited by 53 publications

References 13 publications

Structural and Infrared Spectroscopic Studies of Some Adducts of Divalent Metal Dihalides (MX2, M = Zn, Cd; X = CI, Br, I) with Variously Hindered Monodentate Nitrogen (Pyridine) Base Ligands (L = Pyridine, 2‐Methylpyridine, and Quinoline) of 1:2 Stoichiometry

Structural and Infrared Spectroscopic Studies of Some Adducts of Divalent Metal Dihalides (MX2, M = Zn, Cd; X = CI, Br, I) with Variously Hindered Monodentate Nitrogen (Pyridine) Base Ligands (L = Pyridine, 2‐Methylpyridine, and Quinoline) of 1:2 Stoichiometry

Synthesis and Structure of the Group 12 Pyrimidinethiolate Complexes ∞3[Zn(S‐2‐N2C4H3)2], ∞2[Cd(S‐2‐N2C4H3)2], [Hg(S‐2‐N2C4H3)2] and[Cd(S‐2‐N2C4H3)2(tmeda)]

The synthesis and properties of adducts between poly(4‐vinyl pyridine) and metal alkyls

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Structural and Infrared Spectroscopic Studies of Some Adducts of Divalent Metal Dihalides (MX₂, M = Zn, Cd; X = CI, Br, I) with Variously Hindered Monodentate Nitrogen (Pyridine) Base Ligands (L = Pyridine, 2‐Methylpyridine, and Quinoline) of 1:2 Stoichiometry

Structural and Infrared Spectroscopic Studies of Some Adducts of Divalent Metal Dihalides (MX₂, M = Zn, Cd; X = CI, Br, I) with Variously Hindered Monodentate Nitrogen (Pyridine) Base Ligands (L = Pyridine, 2‐Methylpyridine, and Quinoline) of 1:2 Stoichiometry

Synthesis and Structure of the Group 12 Pyrimidinethiolate Complexes _∞³[Zn(S‐2‐N₂C₄H₃)₂], _∞²[Cd(S‐2‐N₂C₄H₃)₂], [Hg(S‐2‐N₂C₄H₃)₂] and[Cd(S‐2‐N₂C₄H₃)₂(tmeda)]