R. F. Rolsten
Jun 1, 1958
Citations
1
Influential Citations
24
Citations
Journal
Journal of the American Chemical Society
Abstract
Tantalum penta-iodide and -bromide crystallize in the orthorhombic system. The pentaiodide was found to have a pycnometric density of 5.80 g cc/sup -1/ and an x-ray density of 5.809 g cc/sup -1/ with eight formula weights per unit cell. The pentabromide was found to have a pycnometric density of 4.88 g cc/ sup -1/ and an x-ray density of 6.238 g cc/sup -1/ with eight formula weights per unit cell. Tantalum pentachloride crystallizes in the monoclinic system with an x-ray density of 3.761 g cc/sup -1/. with twelve formula weights per unit cell. This is an excellent agreement with the pycnometric density of 3.68 g cc/sup -1/. A compound corresponding to TaI/sub 4/ was prepared and characterized. (auth)