ESR OBSERVATION OF THE H-CENTER-DOT-CENTER-DOT-CENTER-DOT-H, H-CENTER-DOT-CENTER-DOT-CENTER-DOT-D, AND D-CENTER-DOT-CENTER-DOT-CENTER-DOT-D SPIN-PAIR RADICALS IN RARE-GAS MATRICES

被引：7

作者：

KNIGHT, LB ^{[1
]}

RICE, WE ^{[1
]}

MOORE, L ^{[1
]}

DAVIDSON, ER ^{[1
]}

机构：

[1] INDIANA UNIV,DEPT CHEM,BLOOMINGTON,IN 47405

来源：

JOURNAL OF CHEMICAL PHYSICS | 1995年 / 103卷 / 13期

关键词：

D O I：

10.1063/1.470563

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 first experimental observation of the fundamentally important spin-pair radicals, H ... H, H ... D, and D ... D is reported. ESR (electron spin resonance) studies of rare gas matrices near 4 K containing extremely high concentrations of H and D atoms revealed the presence of these spin exchange-coupled molecules whose ESR spectra are analyzed in terms of a (3) Sigma electronic ground state. The observed D tenser (zero-field splitting) for a specific isotopic spin pair was surprisingly constant in all four rare gases but showed large changes among the three isotopic species. As expected, the hyperfine splitting (A(iso)) for the spin-pair was observed to be one-half that of the free H or D atom. (C) 1995 American Institute of Physics.

引用

页码：5275 / 5278

页数：4

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