Erbium tris

Erbium, tris(2,2,6,6-tetrametbyl-3,5-hep tanedione) structure, 1, 65, 66 Erbium complexes acetylacetone, 2, 374 Erhium(ill) complexes glycolic acid, 2, 472 Eriochalcite, 6, 855 Eriochrome black T metallochromic indicators, 1, 555 Eriochrome blue black R metallochromic indicators, I, 556 Eriochrome cyanine R metallochromic indicator, 1, 556 Erythrocruorin, 6, 689 dioxygen transport, 6,683 stability... 

ErCl3,/2C4H, 0, Erbium trichloride—tetra-hydrofuran(2 7), 27 140 ErOiCjjH, Erbium, tris(2,6-di-rm-butyl-4-methylphenoxo)-. 27 167... 

EtCl3 7/2C4HgO, Erbium trichloride—tetra-hydrofuran(2 7), 27 140,28 290 EK)3C45Hj9, Erbium, tris(2,6-di-rcrt-butyl-4-methylphenoxo)-, 27 167 Er2Cl2Si4C44Hg4, Erbium, tetrakis[9 -l,3-bis(trimethylsilyl)cyclopentadienyl]di-p-chloro-di-, 27 171 Er2Cl407C2gHj4, Erbium, hexachloro-heptakis(tetrahydrofuran)di-, 27 140, 28 290... 

ErCl3 l/lC HgO, Erbium trichloride-tetrahydrofuran(2 7X 27 140, 28 290 Er03C45Hg9, Erbium, tris(2,6-di-... 

C12H2 i,Er 2O21, Erbium tris(oxydiacetato)erbate hexahydrate, 43B, 1230 Cl2H2 N20i0V2 2 H2O, N,N,N, N -Tetramethylethylenediammonium aqua-bis(malonato)oxovanadate(IV) dihydrate, 46B, 1147 Ci2H2uOioRh2S2, Tetrakisd acetato)bis(dimethylsulfoxide)dirhodium-... 

Carl Gustaf Mosander, a Swedish chemist, successfully separated two rare-earths from a sample of lanthanum found in the mineral gadolinite. He then tried the same procedure with the rare-earth yttria. He was successful in separating this rare-earth into three separate rare-earths with similar names yttia, erbia, and terbia. For the next 50 years scientists confused these three elements because of their similar names and very similar chemical and physical properties. Erbia and terbia were switched around, and for some time the two rare-earths were mixed up. The confusion was settled ostensibly in 1877 when the chemistry profession had the final say in the matter. However, they also got it wrong. What we know today as erbium was originally terbium, and terbium was erbium. 

REDUCTION, REAGENTS Aluminum amalgam. Borane-Dimethyl sulfide. Borane-Tetrahydrofurane. t-Butylaminoborane. /-Butyl-9-borabicyclo[3.3.1]nonane. Cobalt boride— f-Butylamineborane. Diisobutylaluminum hydride. Diisopropylamine-Borane. Diphenylamine-Borane. Diphenyltin dihydride. NB-Enantrane. NB-Enantride. Erbium chloride. Hydrazine, lodotrimethylsilane. Lithium-Ammonia. Lithium aluminum hydride. Lithium borohydride. Lithium bronze. Lithium n-butylborohydride. Lithium 9,9-di-n-butyl-9-borabicyclo[3.3.11nonate. Lithium diisobutyl-f-butylaluminum hydride. Lithium tris[(3-ethyl-3pentylK>xy)aluminum hydride. Nickel-Graphite. Potassium tri-sec-butylborohydride. Samarium(II) iodide. Sodium-Ammonia. Sodium bis(2-mcthoxyethoxy)aluminum hydride. 

Later, he accepted the elemental nature of the rare earths and he tried to place them in the periodic table according to a homologous accommodation methodology, as Mendeleev did. In 1876, Meyer placed cerium, erbium, and yttrium in the boron group as trivalent elements, but he placed lanthanum in the column of the tetravalent elements. 

Homoleptic tris(2,4-dimethylpentadienyl) derivatives of gadolinium and erbium have been used to synthesize phenylalkynyl derivatives via reactions with equimolar amounts of phenylacetylene (equation 13)... 

Romanenko, GV., Podberezskaya, N.V., Bakakin, V.V., Sakharova, Y.G, and Bogodukhova, T.I. (1985) Crystal structure of tris(acetato)tris(urea)erbium(lll) monourea. Zhumal Struktumoi Khimii, 26 (5), 103-108. 

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