1. Tatsuo Miyazawa, Takehiko Shimanouchi and San-Ichiro MizushimaJ. Chem. Phys., 1958,29, 611.
2. Venkata Chalapathi, V. and Venkata Ramiah, K.Proc. Ind. Acad. Sci., 1966,64, 143.
3. Isao Suzuki..Bull. Chem. Soc. Japan, 1960,33, 1360.
4. —..Ibid., 1962,35, 540.
5. —..Ibid., 1962,35, 1280.