Vibrational studies of the solid imidazole and pyridine adducts of metal(II) saccharinates I. The OH/OD and NH/ND stretching regions of the cobalt(II) and nickel(II) complexes

Pance Naumov, Gligor Jovanovski

Research output: Contribution to journalArticle

Abstract

FT-IR spectra of both protiated and deuterated analogues of the complexes [M(HIm)4(H2O)2](sac)2 and [M(H2O)4(py)2](sac)2·4H2O (M = Co, Ni) in the region of the water stretching modes, at room temperature down to the liquid-nitrogen boiling temperature, are recorded and discussed. The regions of the NH/ND stretchings in the spectra of the imidazole saccharinate+s are also studied. The appearance of the bands that are mainly due to the OH, OD, NH and ND stretchings is discussed in connection with the crystallographic data. The appearance of the NH stretching region in the spectra of the studied imidazole adducts is partly explained as a result of Evans-type Fermi resonance of the NH stretchings with non-fundamental modes. In spite of the existence of single type of asymmetrically bonded water molecules in the structures of the studied imidazole complexes, an unexpected ratio 1:2 of the integral intensities of the two isotopically isolated v(OD) stretchings in their spectra was found. (C) 2000 Editions scientifiques et medicales Elsevier SAS.

Original languageEnglish (US)
Pages (from-to)249-256
Number of pages8
JournalSolid State Sciences
Volume2
Issue number2
DOIs
StatePublished - Oct 3 2000

Fingerprint

Cobalt
Nickel
imidazoles
Pyridine
adducts
Stretching
pyridines
cobalt
Metals
nickel
metals
Water
Liquid nitrogen
liquid nitrogen
boiling
Boiling liquids
water
imidazole
pyridine
analogs

Keywords

  • FT-IR spectra
  • Imidazole complexes
  • Water stretching modes

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

Cite this

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title = "Vibrational studies of the solid imidazole and pyridine adducts of metal(II) saccharinates I. The OH/OD and NH/ND stretching regions of the cobalt(II) and nickel(II) complexes",
abstract = "FT-IR spectra of both protiated and deuterated analogues of the complexes [M(HIm)4(H2O)2](sac)2 and [M(H2O)4(py)2](sac)2·4H2O (M = Co, Ni) in the region of the water stretching modes, at room temperature down to the liquid-nitrogen boiling temperature, are recorded and discussed. The regions of the NH/ND stretchings in the spectra of the imidazole saccharinate+s are also studied. The appearance of the bands that are mainly due to the OH, OD, NH and ND stretchings is discussed in connection with the crystallographic data. The appearance of the NH stretching region in the spectra of the studied imidazole adducts is partly explained as a result of Evans-type Fermi resonance of the NH stretchings with non-fundamental modes. In spite of the existence of single type of asymmetrically bonded water molecules in the structures of the studied imidazole complexes, an unexpected ratio 1:2 of the integral intensities of the two isotopically isolated v(OD) stretchings in their spectra was found. (C) 2000 Editions scientifiques et medicales Elsevier SAS.",
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author = "Pance Naumov and Gligor Jovanovski",
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AU - Naumov, Pance

AU - Jovanovski, Gligor

PY - 2000/10/3

Y1 - 2000/10/3

N2 - FT-IR spectra of both protiated and deuterated analogues of the complexes [M(HIm)4(H2O)2](sac)2 and [M(H2O)4(py)2](sac)2·4H2O (M = Co, Ni) in the region of the water stretching modes, at room temperature down to the liquid-nitrogen boiling temperature, are recorded and discussed. The regions of the NH/ND stretchings in the spectra of the imidazole saccharinate+s are also studied. The appearance of the bands that are mainly due to the OH, OD, NH and ND stretchings is discussed in connection with the crystallographic data. The appearance of the NH stretching region in the spectra of the studied imidazole adducts is partly explained as a result of Evans-type Fermi resonance of the NH stretchings with non-fundamental modes. In spite of the existence of single type of asymmetrically bonded water molecules in the structures of the studied imidazole complexes, an unexpected ratio 1:2 of the integral intensities of the two isotopically isolated v(OD) stretchings in their spectra was found. (C) 2000 Editions scientifiques et medicales Elsevier SAS.

AB - FT-IR spectra of both protiated and deuterated analogues of the complexes [M(HIm)4(H2O)2](sac)2 and [M(H2O)4(py)2](sac)2·4H2O (M = Co, Ni) in the region of the water stretching modes, at room temperature down to the liquid-nitrogen boiling temperature, are recorded and discussed. The regions of the NH/ND stretchings in the spectra of the imidazole saccharinate+s are also studied. The appearance of the bands that are mainly due to the OH, OD, NH and ND stretchings is discussed in connection with the crystallographic data. The appearance of the NH stretching region in the spectra of the studied imidazole adducts is partly explained as a result of Evans-type Fermi resonance of the NH stretchings with non-fundamental modes. In spite of the existence of single type of asymmetrically bonded water molecules in the structures of the studied imidazole complexes, an unexpected ratio 1:2 of the integral intensities of the two isotopically isolated v(OD) stretchings in their spectra was found. (C) 2000 Editions scientifiques et medicales Elsevier SAS.

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