Low-temperature infrared studies: I. preliminary communication on the infrared spectrum of ammonium dichromate (NH4)(2)Cr2O7

被引：12

作者：

Schutte, C. J. H. ^{[1
]}

Heyns, A. M. ^{[1
]}

机构：

[1] Univ S Africa, ZA-0001 Pretoria, South Africa

来源：

CHEMICAL PHYSICS LETTERS | 1967年 / 1卷 / 10期

关键词：

D O I：

10.1016/0009-2614(67)85084-X

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The infrared spectrum of (NH4)(2)Cr2O7 was investigated from room temperature down to 17 degrees K. Four different phases were observed. At room temperature the infrared spectrum allows the conclusion that the NH4--ion executes "free" rotation: hindered rotation probably occurs in the lower phases.

引用

页码：487 / 489

页数：3

共 16 条

[1]

Bhagavantana S., 1939, P INDIAN ACAD SCI A, V9A, P224, DOI DOI 10.1007/BF03046465

[2] THE CRYSTAL STRUCTURE OF (NH4)2CR2O7 - WITH A DISCUSSION OF THE RELATION BETWEEN BOND NUMBER AND INTERATOMIC DISTANCES [J].

BYSTROM, A ;

WILHELMI, KA .

ACTA CHEMICA SCANDINAVICA, 1951, 5 (7-8) :1003-1010

[3] SPECTRAL EVIDENCE FOR INTERIONIC FORCES IN CRYSTAL-CHROMATES AND DICHROMATES [J].

CAMPBELL, JA .

SPECTROCHIMICA ACTA, 1965, 21 (07) :1333-&

[4]

Gossner B, 1930, Z KRISTALLOGR, V72, P476

[5] MOTIONS OF MOLECULES IN CONDENSED SYSTEMS .1. SELECTION RULES, RELATIVE INTENSITIES, AND ORIENTATION EFFECTS FOR RAMAN AND INFRA-RED SPECTRA [J].

HALFORD, RS .

JOURNAL OF CHEMICAL PHYSICS, 1946, 14 (01) :8-15

[6] THE VIBRATIONAL SPECTRA OF MOLECULES AND COMPLEX IONS IN CRYSTALS .1. GENERAL THEORY [J].

HORNIG, DF .

JOURNAL OF CHEMICAL PHYSICS, 1948, 16 (11) :1063-1076

[7]

JAFFRAY J, 1955, CR HEBD ACAD SCI, V241, P1114

[8] INFRARED SPECTRA OF INORGANIC IONS IN THE CESIUM BROMIDE REGION (700-300 CM-1) [J].

MILLER, FA ;

CARLSON, GL ;

BENTLEY, FF ;

JONES, WH .

SPECTROCHIMICA ACTA, 1960, 16 (1-2) :135-235

[9] INFRARED SPECTRA AND CHARACTERISTIC FREQUENCIES OF INORGANIC IONS - THEIR USE IN QUALITATIVE ANALYSIS [J].

MILLER, FA ;

WILKINS, CH .

ANALYTICAL CHEMISTRY, 1952, 24 (08) :1253-1294

[10] INFRARED SPECTRUM, X-RAY DIFFRACTION PATTERN, AND STRUCTURE OF AMMONIUM FLUORIDE [J].

PLUMB, RC ;

HORNIG, DF .

JOURNAL OF CHEMICAL PHYSICS, 1955, 23 (05) :947-953

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