DEUTERON AND PROTON MAGNETIC-RESONANCE STUDIES OF POTASSIUM AND RUBIDIUM HYDROGEN SELENITE SINGLE-CRYSTALS

被引：3
|
作者：
VINOGRADOVA, IS
VASILJEVA, SI
机构：
[1] Acad of Sciences, Krasnoyarsk, USSR, Acad of Sciences, Krasnoyarsk, USSR
来源：
JOURNAL OF SOLID STATE CHEMISTRY | 1986年 / 62卷 / 02期
关键词：
HYDROGEN - MAGNETIC RESONANCE - POTASSIUM COMPOUNDS - Physical Properties - RUBIDIUM COMPOUNDS;
D O I：
10.1016/0022-4596(86)90224-0
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Deuteron and proton magnetic resonance studies of single crystals of potassium and rubidium deuterium (hydrogen) selenites are reported. Triclinic unit cells and structural isomorphism of both crystals are found. The deuterium field-gradient tensor is determined at room temperature. The quadrupole coupling constants (e**2Qq/h) are 172. 9 kHz for KDSeO//3 and 181. 6 kHz for RbDSeO//3. The observed field-gradient tensor corresponds to one nonequivalent hydrogen bond in the unit cell of length 2. 60 A in KdSeO//3 and 2. 63 A in RbDSeO//3. The deuterons are ordered; no phase transitions were found in the temperature range from room temperature to 77 K.
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页码：138 / 144
页数：7
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