Vibrational frequency assignments of isotopically different forms of nitrate ion in ionic nitrate crystals

1970 ◽  
Vol 48 (8) ◽  
pp. 1198-1201 ◽  
Author(s):  
M. H. Brooker ◽  
D. E. Irish
Keyword(s):  
Raman Spectra ◽  
Vibrational Frequency ◽  
Isotopic Ratios ◽  
Infrared And Raman Spectra ◽  
Nitrate Ion ◽  
Low Intensity ◽  
Vibrational Bands

Infrared and Raman spectra of powdered ionic nitrates contain low intensity vibrational bands which are assigned to isotopically different species. Bands at ~(ν1 − 20) and ~ (ν4 − 13) cm−1 are assigned to the 14N16O218O− ion whereas the band at ~ (ν2 − 20) cm−1 is assigned to the 15N16O3− ion. Failure of the ratio of band intensities to agree with predicted isotopic ratios is discussed.

Infrared and Raman Spectroscopic Studies of Solid Alkali Metal Nitrites

1971 ◽  
Vol 49 (8) ◽  
pp. 1289-1295 ◽  
Author(s):  
M. H. Brooker ◽  
D. E. Irish
Keyword(s):  
Alkali Metal ◽  
Raman Spectra ◽  
Spectroscopic Studies ◽  
Infrared And Raman Spectra ◽  
Nitrite Ion ◽  
Nitrate Ion ◽  
Raman Spectroscopic ◽  
Linkage Isomerism ◽  
Vibrational Bands ◽  
Cation Size

Infrared and Raman spectra of solid LiNO2•H2O, LiNO2, NaNO2, KNO2, and CsNO2 are presented and discussed. Pronounced changes in the spectra of LiNO2•H2O during dehydration to anhydrous LiNO2 are interpreted as evidence for an ordered distribution of NO2− ions over two non-equivalent sites (akin to linkage isomerism) in anhydrous LiNO2. The frequencies of the internal modes of the nitrite ion shift to lower values with increasing cation size. Vibrational bands due to nitrate ion present as an impurity are assigned.

Low frequency infrared and Raman spectra of the N,N,N′,N′-tetramethyl-ethylenediamine adducts of the Group IIb dihalides

1970 ◽  
Vol 48 (1) ◽  
pp. 181-184 ◽  
Author(s):  
M. H. Abraham ◽  
F. W. Parrett
Keyword(s):  
Solid State ◽  
Raman Spectra ◽  
Vibrational Spectra ◽  
Low Frequency ◽  
Infrared And Raman Spectra ◽  
Cadmium Complexes ◽  
Mercury Complexes ◽  
Vibrational Bands

A study of the low frequency vibrational spectra of the complexes MX2.TMED (where M = Zn, Cd, Hg; X = Cl, Br, I; TMED = N,N,N′,N′-tetramethylethylenediamine suggests that in the solid state the zinc and mercury complexes are 4-coordinated but the cadmium complexes are all based on octahedral halogen bridged structures. Assignments of the vibrational bands are discussed.

Infrared and Raman spectra of the cerium(IV) ion – nitrate ion – water system

1967 ◽  
Vol 45 (2) ◽  
pp. 147-155 ◽  
Author(s):  
J. T. Miller ◽  
D. E. Irish
Keyword(s):  
Raman Spectra ◽  
Raman Band ◽  
Water System ◽  
Attenuated Total Reflectance ◽  
Infrared And Raman Spectra ◽  
Vibration Frequencies ◽  
Nitrate Ion ◽  
Total Reflectance ◽  
Infrared Transmittance ◽  
Concentration Changes

Infrared spectra of aqueous solutions containing Ce(IV) and nitrate ions have been obtained by the attenuated total reflectance (a.t.r.) technique. Vibration frequencies and intensities have been measured and compared with infrared transmittance spectra and Raman spectra of both solutions and solids. The number of bands and the variation of band intensity with concentration changes indicate the presence of nitrato–cerium complexes in the solution. The polarization of the 1 538 cm−1 Raman band is advanced as a criterion that the coordination between the nitrate ion and the cerium(IV) ion is bidentate. Possible assignments are considered although many of the vibrations are characteristic of the ligand and hence are not diagnostic of a particular species.

Synthesis and vibrational spectra of lead(II) thiocyanate complexes

1976 ◽  
Vol 54 (8) ◽  
pp. 1189-1196 ◽  
Author(s):  
Anthony D. Baranyi ◽  
Ramesh Makhija ◽  
Mario Onyszchuk
Keyword(s):  
Raman Spectra ◽  
Vibrational Spectra ◽  
Infrared And Raman Spectra ◽  
Bidentate Ligands ◽  
Thiocyanate Complexes ◽  
Vibrational Bands ◽  
Thiocyanate Group

The preparation, properties, and vibrational spectra are reported for the following complexes of lead(II) thiocyanate with mono- and bidentate ligands: Pb(NCS)2•2py, Pb(NCS)2•phen, Pb(NCS)2•2phen, Pb(NCS)2•tmen, Pb(NCS)2•en, Pb(NCS)2•2en, Pb(NCS)2•2dmso, and Pb(NCS)2•2dma. Assignments are made for the ν(CN), ν(CS), and δ(NCS) vibrational bands of the thiocyanate group and the results are discussed in terms of the type of coordination of NCS with lead(II). Values are consistent with bridge-bonded and/or N-bonded thiocyanate. Infrared and Raman spectra of the complexes Pb(NCS)2•bipy and Pb(NCS)2•4tu are reexamined and new assignments are made which support bridge-bonded and/or N-bonded NCS contrary to previous reports of S-bonded NCS.

Notizen: Schwingungseigenschaften des Nitrat-Ions im Ba10(ReO5)6(NO3)2-Apatit/Vibrational Properties of the Nitrate Ion in the Ba10(ReO5)6(NO3)2-Apatite

1983 ◽  
Vol 38 (4) ◽  
pp. 526-527 ◽  
Author(s):  
E. J. Baran ◽  
M. Aneas ◽  
J.-P. Besse
Keyword(s):  
Raman Spectra ◽  
Vibrational Properties ◽  
Infrared And Raman Spectra ◽  
Nitrate Ion

Abstract The infrared and Raman spectra of the crystalline Ba10(ReO5)6(NO3)2 apatite are reported and the vibrational properties of the NO3-ion present in this lattice are discussed in detail.

Infrared and Raman Spectra of Some Pentamethyldisilanyl Compounds

1965 ◽  
Vol 19 (3) ◽  
pp. 80-83 ◽  
Author(s):  
Joseph V. Urenovitch ◽  
Alan G. MacDiarmid ◽  
Eugene R. Nixon
Keyword(s):  
Raman Spectra ◽  
Liquid State ◽  
Heavy Atom ◽  
Infrared And Raman Spectra ◽  
Vibrational Bands

Infrared and Raman spectra are reported for a number of pentamethyldisilanyl compounds in the liquid state. These include the chloride, cyanide, isocyanate, ether, and amine derivatives. The assignment of the vibrational bands is discussed, particularly for those modes involving the heavy atom skeletons.

Vibration spectra of sulphur tetranitride

1981 ◽  
Vol 46 (11) ◽  
pp. 2613-2619 ◽  
Author(s):  
Jiří Toužín
Keyword(s):  
Solid State ◽  
Raman Spectra ◽  
Normal Coordinate Analysis ◽  
Infrared And Raman Spectra ◽  
Normal Coordinate ◽  
Vibration Spectra

Available data on infrared and Raman spectra of S4N4 in solid state and solutions have been verified and completed. On the basis of normal coordinate analysis an attempt has been made to define with more precision the interpretation of vibration spectra of this compound given in earlier reports.

Vibrational spectra of aquadioxotetra; peroxodivanadates(V) M2[V2O2(O2)4(H2O)]·xH2O (M = N(CH3)4, Cs)

1990 ◽  
Vol 55 (6) ◽  
pp. 1485-1490 ◽  
Author(s):  
Peter Schwendt ◽  
Milan Sýkora
Keyword(s):  
Raman Spectra ◽  
Vibrational Spectra ◽  
Normal Coordinate Analysis ◽  
Force Constants ◽  
Infrared And Raman Spectra ◽  
Empirical Correlations ◽  
Normal Coordinate ◽  
Bond Lengths ◽  
Stretching Vibrations

The infrared and Raman spectra of M2[V2O2(O2)4(H2O)]·xH2O and M2[V2O2(O2)4(D2O)]·xD2O (M = N(CH3)4, Cs) were measured. In the region of the vanadium-oxygen stretching vibrations, the spectra were interpreted based on normal coordinate analysis, employing empirical correlations between the bond lengths and force constants.

Infrared and Raman Spectra, conformations,ab initio calculations and spectral assignments of 1,3-disilabutane (SiH3CH2SiH2CH3)

2007 ◽  
Vol 38 (9) ◽  
pp. 1159-1173 ◽  
Author(s):  
Gamil A. Guirgis ◽  
Paul M. Mazzone ◽  
Daniel N. Pasko ◽  
Peter Klaeboe ◽  
Anne Horn ◽  
...  
Keyword(s):  
Ab Initio Calculations ◽  
Ab Initio ◽  
Raman Spectra ◽  
Infrared And Raman Spectra
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