1. B. P. Bering, E. G. Zhukovskaya, B. Kh. Rakhmukov, and V. V. Serpinskii, Izv. Akad. Nauk SSSR, Ser. Khim., 1956, 1662 (1967).
2. A. Grossmann and K. Fiedler, Z. Phys. Chem.,236, 38 (1967).
3. G. Meinert, Personal Communication.
4. H. Stach, Personal Communication.
5. O. M. Dzhigit, S. P. Zhdanov, A. V. Kiselev, and G. G. Muttik, Zh. Fiz. Khimii,36, 919 (1962).