Infrared, single crystal raman, and sers spectra of ch3nh3naseo4 · 6x2o and nanh4seo4 · 2x2o (x = h, d)

Daizy Philip; G. Aruldhas; T. Osaka; A. Miyazaki

doi:10.1006/jssc.1994.1140

Infrared, single crystal raman, and sers spectra of ch₃nh₃naseo₄ · 6x₂o and nanh₄seo₄ · 2x₂o (x = h, d)

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

Research output: Contribution to journal › Article › peer-review

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 SeO^2-₄ is lower than T_d. The symmetry of CH₃NH⁺₃ is lower than C_3v 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 SeO^2-₄. Shifting and splitting observed for the internal modes of SeO^2-₄ on adsorption are due to the reduced local symmetry of the ion.

Original language	English
Pages (from-to)	92-99
Number of pages	8
Journal	Journal of Solid State Chemistry
Volume	110
Issue number	1
DOIs	https://doi.org/10.1006/jssc.1994.1140
Publication status	Published - 1994 May
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Condensed Matter Physics
Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

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10.1006/jssc.1994.1140

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title = "Infrared, single crystal raman, and sers spectra of ch3nh3naseo4 · 6x2o and nanh4seo4 · 2x2o (x = h, d)",

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.",

author = "Daizy Philip and G. Aruldhas and T. Osaka and A. Miyazaki",

year = "1994",

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T1 - Infrared, single crystal raman, and sers spectra of ch3nh3naseo4 · 6x2o and nanh4seo4 · 2x2o (x = h, d)

AU - Philip, Daizy

AU - Aruldhas, G.

AU - Osaka, T.

AU - Miyazaki, A.

PY - 1994/5

Y1 - 1994/5

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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