30549-83-8

Basic information

• Product Name: CuI₃^(2-)
• CAS NO: 30549-83-8
• Molecular Weight: 444.26
• Mol File: 30549-83-8.mol

Chemical Properties

• CAS DataBase Reference: CuI₃^(2-)(CAS DataBase Reference)
• NIST Chemistry Reference: CuI₃^(2-)(30549-83-8)
• EPA Substance Registry System: CuI₃^(2-)(30549-83-8)

Safety Data

• Hazardous Substances Data: 30549-83-8(Hazardous Substances Data)

Upstream product

• 7681-65-4 copper(l) iodide 

Relevant articles and documents

Studies on the Preparation of Cuprous Oxide. VIII. A Spectrophotometric Study of Halogenocopper(I) Complexes in Aqueous 5 M Na(ClO4) Solutions

The complex formation of copper(I) with bromide and iodide ions in aqueous 5M (1M = 1 mol dm-3) Na(ClO4) solutions was studied spectrophotometrically over a pH range from acidic to alkaline.Over the concentration range of 0.05-5 M bromide ions in acidic solutions, the CuBr2- and CuBr32- complexes were found.On the other hand, in the iodide system the CuI2-, CuI32- complexes and a higher complex were found under the same experimental conditions, although the composition and the formation constant of the last complex could not be determined in this study.The equilibrium constants for the reactions, CuX2- + X- = CuX32-, were 13 and 1.6 for the bromide and iodide complexes respectively.A hydrolyzed species of copper(I), Cu(OH)2-, was found in an alkaline solution of the two systems.The formation constants, β-22 = ->->2/->->2, were evaluated as follows: β-22 = (10.0 +/- 0.7) * 107 (-> less than 2 M), (2.6 +/- 0.7) * 107 (-> = 3M), (1.7 +/- 0.7) * 107 (-> = 4M) in the bromide solutions, (4.0 +/- 0.4) * 103 (-> less than 2M), (2.5 +/- 0.4) * 103 (-> = 3M), (2.2 +/- 0.4) * 103 (-> = 4M) in the iodide solutions.

63Cu High Resolution NMR of Cu(I) Halides in Aqueous Solution and Suspension

In an aqueous solution, 63Cu chemical shielding order (3- ca. 3- 3-) and line widths (10 to 30 kHz) for CuX-KX systems (where X=Cl,Br,I) have been obtained.The chemical shift (-694 ppm) between 3- and 3- is interpreted by the paramagnetic term which depends mainly upon a 3d-hole on a Cu(I) atom by using perturbation theory with an average excitation energy approximation.The line-broadening of Cu(I) halide complexes in aqueous solution is explained dominantly by a Cu(I) nuclear quadrupole interaction with the electric field gradient which arises from a 3d-hole on a Cu atom.For the abnormal increasing metal shielding order of (4-i)-((4-i)- (4-i)- (4-i)-), a possibility of the heavy-atom effect in the metal shielding of 3- (649 ppm, using the lowest excitation energy of the diatomic molecule) and 3- (1941 ppm using the lowest excitation energy of the diatomic molecule), is evaluated.