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B, which then starts reacting with the surrounding acid.
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A H+ -!% B -k €3' -% BI-I' The formation of BH+ and the disappearance of B can be followed spectroscopically by both slow and fast techniques.
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(2) J. A. Katul and A. B. Zahlan, J. Chem. Phys., 47, 1012 (1968). (3) G. Goumet, F. Dupuy, and G. Nouchi, C. R. Acad. Sci., Ser. 5, 267, 41 (1968). (4) T. Bercovici, R. Heiligmann-Rim, and E. Fischer, Mol. Photochem., 1, 189 (1969).
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Department of Structural Chemistry The Weizmann institute of Science Rehovot, Israel
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