THE ELECTRON SPIN RESONANCE ABSORPTION OF TWO SOLID-STATE PARAMAGNETIC CENTERS. PART I. FROZEN "TETRAMETHYL AMMONIUM" SOLUTIONS. PART II. CRESTMORE BLUE CALCITE (thesis)
The electrolytic reduction of tetramethyl ammonium iodide, dissolved in liquid ammonia, yielded a blue solution called "tetramethyl ammonium." The paramagnetic resonance spectrum of this material cooled below the freezing point of ammonia was examined. A single-line spectrum was observed at 8750 Mc/sec, with g = 2, DELTA h/sub msl/ = 2.3 gauss, and a line shape intermediate between Gaussian and Lorentzian. The origin of this spectrum and its line shape is discussed. The paramagnetic resonance spectrum of Crestmore blue calcite was examined. At 77 deg K a nearly isotropic quartet was observed with g = 2.011 plus or minus 0.002. When the calcite was bleached, this quartet could not be observed. The appearance of the quartet suggests an isotropic hyperfine interaction for a nucleus with 1 = 3/2 and with a/h = 22 plus or minus 1 Mc/sec. (auth)
- Research Organization:
- California. Univ., Berkeley. Dept. of Chemistry; California. Univ., Berkeley. Lawrence Radiation Lab.
- DOE Contract Number:
- W-7405-ENG-48
- NSA Number:
- NSA-15-024098
- OSTI ID:
- 4036596
- Report Number(s):
- UCRL-9602
- Country of Publication:
- United States
- Language:
- English
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