THE PREPARATION OF A SOLID RHENIDE
Abstract
Solid KRe (Science 115:375-376 1952) was purified by extraction with isopropyl alcohol. Analysis of the resulting gray solid showed it to be KRe . 4H sub 2 O of greater than 90% purity. The molar susceptibility at 20 deg C of the Kre . 4H sub 2 O, corrected for the diamagnetism of the KOH impurity, was about 240 x 10 to the minus power of 6 cgs magnetic units. As this degree of paramagnetism is less than that required for a substance with 1 unpaired electron, and the Re atom has 5 unpaired electrons, the formation of the Re ion probably involves a considerable modification in electronic configuration. The magnetic data support the suggestion of Pauling (Chem. Eng. News 25:2970-2973, 1947) that the tetrahydrate has a square planar structure which involves dsp(2) bonds.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1953
- Accession Number
- AD0001772
Entities
People
- Ernest Griswold
- Jabcob Kleinberg
- Justo B. Bravo
Organizations
- University of Kansas