76. The infrared spectrum is described in the Experimental Section. Methylfluorammonium Bisulfate - To determine whether substituted fluoramoniun: <strong>salt</strong>s could ne prepared by these methods, the reaction of ethyl N-fluoro-Nlcethylcarbamate wi'th sulfuric acid was studied. Gas was evolved at 85 to 95'. The F19 nmr spectrum of the sulfuric acid solution consisted of an incompletely resolved triplet of quartets at -29.5 ppm (external trifluoroacetic acid reference), <strong>with</strong> coupling constants of 42 cps to the NH2 <strong>and</strong> 28 cps to the methyl. A sulfuric acid solution prepared in this manner reacted <strong>with</strong> cyclohexanone <strong>and</strong> water to give N-methylcaprolactam. These reactions are analogous to those of the unsubstituted fluorocarbamates <strong>and</strong> indicate broad applicability of the synthesis methods. Acknowledgement. The authors wish to thank Dr. H. M. Nelson <strong>and</strong> Mr. L. A. Maucieri for the nmr spectra, <strong>and</strong> Mr. K. Inouye for the elemental analysis. ,
I 1 c 0 1 1. 2. 3. 4. >. ’. 3. 7. 8. 9. 10. 11. 12. 13 * II;. . 77. REFERENCES This work was supported by the Office of Naval Research <strong>and</strong> the Advanced Re- search Projects ‘Agency. W. 2. Tolberg, 2. T. Rewick, R. S. Stringham, <strong>and</strong> M. E. Hill, Inorg. Chem., 4, 1156 (1967). J. P. Guertin, K. 0. Christe, <strong>and</strong> A. E. Pavlath, Inorg. Chem., 5, 1961 (1966). A. D. Craig, Inorg. Chem., 2, 1628 (1964). 0. Ruff <strong>and</strong> L. Staub, Z. Anorg. Allg. Chem., *, 32 (1931). W. Schmeisser <strong>and</strong> P. Sartori, Anaew. Chem., E, 523 (1959). C. 3. Colburn, “Advances in Fluorine Chemistry,” Vol. 3, M. Stacey, J. C. Tatlow, <strong>and</strong> A. G. Sharpe, editors, Butterworth & Co., Washington, D.C. (l963), p. 108. R. A. Wiesboeck <strong>and</strong> J. K. Ruff, Inorg. Chem., 2, 1629 (1966). K. %um <strong>and</strong> H. M. Nelson, J. Am. Chem. SOC., 88, 4459 (1966); K. hum, J. Ore. hen., 2, 3648 (1967). V. Grakauskas, Third International Fluorine Symposium, Munich, Sept. 1965; R. E. Banks, R. N. Haszeldine, <strong>and</strong> J. P. Lalu, J. Chem. SOC. (C), 1966, 1514. ‘7. 2. Stevens, Tetrahedron Letters, 1967, 5017. R. C. Hauser <strong>and</strong> A. G. Gillaspie, J. Am. Chem. Soc., 2, b51.7 (1930). G. Schwarzenbach <strong>and</strong> P. Stensby, Helv. Chim. Acta, 42, 2342 (1959). Z. W. Mellor, “A Comprehensive Treatise on Inorganic <strong>and</strong> Theoretical Chemis- try,“ Vol. Ii, Longmans, Green & Co., New York, 1946, p. 380. J. Meyer <strong>and</strong> W. Sporimann, Z. Anorg. Allgem. Chem., 228, 341 (1936). ’ 16. One member of the doublet was obscured by the solvent signal in concentrated sulfuric acid, but was visible using 101% sulfuric acid.
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Introduction 1. SECONDARY CELLS WIT
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I time curves at constant current d
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I 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11
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7. IV IV- Equivalent Weight, gr/ Eq
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1 3 9 SOYO FILLER,HQT PRESS Fig. 4.
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11. COAL PYROLYSIS USING LASER IRRA
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13. Macerals. Macerals from a singl
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i 1 I Photochemistry. A fundamental
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t P li. al ’ i ._ m LL
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' 19. PYROLYSIS OF COAL IN A MICROW
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I 21. In the third stage, the gas e
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126. auxiliary equipment. For conve
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128. reliability. Details of most o
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130. The time required for the deto
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132. Fig. 2 Typical Witness Plate
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I ll 134. L, ALUMINUM 011+ ‘7 I-
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