Cobalt tris

Cobalt, trichlorotris(l,2-ethylenediamine)-conformation, 1, 197 Cobalt, (triethylcnetetramine)-isomerism, 1, 200,201 Cobalt, trinitrato-structure, 1,67 Cobalt, tris(acetylacetone)-structure, 1, 62,65,67 Cobalt, tris(bipyridyl)-structure, 1,64... 

Cobalt, tris(l,2-ethanediamine)-conformation, 1,25,197 polarography, 1,481 racemization, 1, 466 solid state, 1,466,467 reactions, 1, 27 redox potential, 1, 514 structure, 1, 67... 

Cobalt, tris(oxalato)-racemization solid state, 1, 467 structure, 1, 68... 

Cobalt, tris(l,2-propanediamine)-complexes structure, 1, 25 conformation, 1,25 nomenclature, 1, 129 stereonotation, 1,129... 

Cobalt, tris(tetraaminine-p-dihydroxocobalt)-optical isomerism, 1,13... 

Using the tri-iodide/iodide redox couple and the sensitizers (22) and (56), several groups have reported up to 8-10% solar cell efficiency where the potential mismatch between the sensitizer and the redox couple is around 0.5 V vs. SCE. If one develops a suitable redox couple that decreases the potential difference between the sensitizer and the redox couple, then the cell efficiency could increase by 30%, i.e., from the present value of 10% up to 13%. Towards this goal, Oskam et al. have employed pseudohalogens in place of the triiodide/iodide redox couples, where the equilibrium potential is 0.43 V more positive than that of the iodide/iodide redox couple.17 Yamada and co-workers have used cobalt tris-phenanthroline complexes as electron relays (based on the CoII/m couple) in dye-sensitized solar cells.95... 

Cobalt Triazide (formerly call Cobalt Tri-nitride or Cobalt Azoimide) Co(N,)j, raw 142.99, N58.78% red-brn crysts (anhyd), mp det 148° (0.02 g in 5 sec) (Ref 5), hygroscopic and easily hydrolyzed (Ref 4). The basic cobalt azide, Co(OH)N, was first prepd in 1898 by Curtius Rissom (Ref 1). An aq soln of cobalt azide was studied by Dennis Isham (Ref 2). The anhyd salt, prepd by ihe action of cobaitous carbonate on hydrazoic acid, was prepd by Wohler (Ref 3) and by Wohler Si Martin MptKrvrl C nf nr hrt... 

Di-cobalt Tri-arsenide, Co2As3, is formed when cobalt monarsenide is heated at 400° to 600° C., or when cobalt is heated with arsenic trichloride at the same temperature. According to Beutell and Lorenz,8 it is formed when cobalt is heated in arsenic vapour at 345° to 365° C., but it slowly undergoes decomposition below 400° C. to form the di-arsenide, CoAs2. It also decomposes when heated above 600° C. The density is 7-35 at 0° C. 

Cobalt Tri-arsenide, CoAs3, is found in Nature as the mineral skut-terudite (p. 10), and is formed when cobalt is heated in arsenic vapour at 450° to 618° C.2... 

Magnetochemical measurements for the solid phosphorus-containing zinc, iron, nickel, and cobalt tris-diiminates showed that the first two are diamagnetic and low-spin complexes. The cobalt and nickel(II) complexes proved to be high-spin clathrochelates with magnetic moments of 4.91BM (S=3/2) and 3.11BM (S=l), respectively [92, 93]. 

The IR spectra of macrobicyclic cobalt tris-dioximates confirmed their clathrochelate nature and contained characteristic bands of... 

---