HALOGENOID COMPLEXES.
Abstract
A very careful and exact determination of dissociation constants was completed for the following pseudo-halic acids: HCN, HOCN, HSCN, HN3, and HSeCN. The pKa values for these acids at 20C are: HCN, 9.36 = .01; HOCN, 3.70 = .02; HSCN, 0.96 = .6; HN3, 4.70 = .02; HSeCN, <<1. Preliminary data were obtained for relative rates of reduction of Co(NH3)5X(2+) ions (where X = Cl, Br, I, NCS, N3 etc.,) by Cr(2+). Approximate relative rates of 1:3:11 were found for the chlorine, bromine, and iodine complexes, respectively. When halogenoid ions such as N3(-) or SCN(-) are used in these reactions, rather inexplicable results were obtained so far. This study is being pursued further. A compound recently reported in the literature, presumably (Et4N)2Cu(NCO)4, has properties entirely different from this compound. This disagreement is being resolved. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1965
- Accession Number
- AD0617165
Entities
People
- R. N. Keller
Organizations
- University of Colorado Boulder