Infrared, Single Crystal Raman, and SERS Spectra of CH3NH3NaSeO4 · 6X2O and NaNH4SeO4 · 2X2O (X = H,D)

Daizy Philip, G. Aruldhas, Tetsuya Osaka, A. Miyazaki

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

IR and polarized Raman spectra of CH3NH3NaSeO4 · 6H2O (MASS), NaNH4SeO4 · 2H2O (SAS), and their deuterated analogues are recorded and analyzed. In both the crystal symmetry of SeO2- 4 is lower than Td. The symmetry of CH3NH+ 3 is lower than C3v and hydrogen bonding is strong in MASS. NH+ 4 is not rotating freely in the crystal lattice of SAS. SERS spectra are recorded in two types of silver colloids. Colloid 1 adsorbs MASS through the nitrogen atom of CH3NH3 group. There are two different adsorption sites for MASS in colloid 2. SAS is chemisorbed by colloid 2 through the oxygen atom of SeO2- 4. Shifting and splitting observed for the internal modes of SeO2- 4 on adsorption are due to the reduced local symmetry of the ion.

Original languageEnglish
Pages (from-to)92-99
Number of pages8
JournalJournal of Solid State Chemistry
Volume110
Issue number1
DOIs
Publication statusPublished - 1994 May
Externally publishedYes

Fingerprint

Colloids
colloids
SAS
Single crystals
Infrared radiation
single crystals
Adsorption
Atoms
symmetry
Crystal symmetry
Crystal lattices
adsorption
Raman scattering
Hydrogen bonds
Nitrogen
crystal lattices
nitrogen atoms
Ions
Oxygen
oxygen atoms

ASJC Scopus subject areas

  • Materials Chemistry
  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

Cite this

Infrared, Single Crystal Raman, and SERS Spectra of CH3NH3NaSeO4 · 6X2O and NaNH4SeO4 · 2X2O (X = H,D). / Philip, Daizy; Aruldhas, G.; Osaka, Tetsuya; Miyazaki, A.

In: Journal of Solid State Chemistry, Vol. 110, No. 1, 05.1994, p. 92-99.

Research output: Contribution to journalArticle

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abstract = "IR and polarized Raman spectra of CH3NH3NaSeO4 · 6H2O (MASS), NaNH4SeO4 · 2H2O (SAS), and their deuterated analogues are recorded and analyzed. In both the crystal symmetry of SeO2- 4 is lower than Td. The symmetry of CH3NH+ 3 is lower than C3v and hydrogen bonding is strong in MASS. NH+ 4 is not rotating freely in the crystal lattice of SAS. SERS spectra are recorded in two types of silver colloids. Colloid 1 adsorbs MASS through the nitrogen atom of CH3NH3 group. There are two different adsorption sites for MASS in colloid 2. SAS is chemisorbed by colloid 2 through the oxygen atom of SeO2- 4. Shifting and splitting observed for the internal modes of SeO2- 4 on adsorption are due to the reduced local symmetry of the ion.",
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AU - Miyazaki, A.

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N2 - IR and polarized Raman spectra of CH3NH3NaSeO4 · 6H2O (MASS), NaNH4SeO4 · 2H2O (SAS), and their deuterated analogues are recorded and analyzed. In both the crystal symmetry of SeO2- 4 is lower than Td. The symmetry of CH3NH+ 3 is lower than C3v and hydrogen bonding is strong in MASS. NH+ 4 is not rotating freely in the crystal lattice of SAS. SERS spectra are recorded in two types of silver colloids. Colloid 1 adsorbs MASS through the nitrogen atom of CH3NH3 group. There are two different adsorption sites for MASS in colloid 2. SAS is chemisorbed by colloid 2 through the oxygen atom of SeO2- 4. Shifting and splitting observed for the internal modes of SeO2- 4 on adsorption are due to the reduced local symmetry of the ion.

AB - IR and polarized Raman spectra of CH3NH3NaSeO4 · 6H2O (MASS), NaNH4SeO4 · 2H2O (SAS), and their deuterated analogues are recorded and analyzed. In both the crystal symmetry of SeO2- 4 is lower than Td. The symmetry of CH3NH+ 3 is lower than C3v and hydrogen bonding is strong in MASS. NH+ 4 is not rotating freely in the crystal lattice of SAS. SERS spectra are recorded in two types of silver colloids. Colloid 1 adsorbs MASS through the nitrogen atom of CH3NH3 group. There are two different adsorption sites for MASS in colloid 2. SAS is chemisorbed by colloid 2 through the oxygen atom of SeO2- 4. Shifting and splitting observed for the internal modes of SeO2- 4 on adsorption are due to the reduced local symmetry of the ion.

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