Hexa halogenation

We thus obtain a tri-halogen substitution product of the saturated hydrocarbon. These reactions may be repeated, yielding, each time, a halogen product of the saturated hydrocarbon containing one more halogen atom. We may thus pass from di-halogen ethane to hexa-halogen ethane. The entire series of reactions is as follows ... 

The hexa-halogen ethanes, CX3—CX3, or per-halogen ethanes, are known in both the chlorine and the bromine compounds. Per-chlor ethane, CCI3—CCI3, hexa-chlor ethane is a colorless, crystalline substance with a camphor-like odor and which melts at 184°. Per-brom ethane, CBr3—CBr3, hexa-brom ethane is also a colorless, crystalline substance. 

The dienes bicyclo[2,2,l]hepta-2,5-diene 1, 7), cyclo-octa-1,5-diene 43), dicyclopentadiene 43, 68), dipentene 48), hexa-1,5-diene 43, 124) and diallyl ether 124) form complexes of the type [Ft X2(diene)J (X = halogen). These complexes are monomeric and nonconducting, and are formulated as chelate complexes of type (XXXI) in which the diene, represented by the symbol (XXXII) functions as a bidentate ligand and occupies two... 

L. Deffet J. Boucart, BelgP 655464 (1965) CA 65, 2059(1966) [Safety expls of the ion-exchange type (such as NH.4Cl/KN03 compos) ate obtd by the addn of a halogenated org inhibitor (such as hexachloroethane, hexa-chlorocydohexane, DDT, chlordan iodoform). 

Penta-, hexa-, and heptahalogenated compounds. Many compounds of the general type XYn where Y is a halogen,mainly fluorine, and n = 5,6, or 7 have been investigated by electron diffraction in recent years. These substances exhibit a varied dynamical behavior. While WF6395 396, MoF6395 397, TeF6397 398),... 

Platinum-lead complexes undergo a cleavage of Pt—Pb bond with halogens and halogen acids506,507 510. These reactions are believed to occur through an electrophilic attack on Pt(II) leading to oxidative addition with the formation of a hexa-coordinated Pt(IV) complex. Reductive elimination of a plumbane results in the observed products (equation 193). 

Both the hexa- and dodecaallylation reactions are readily controllable. On the other hand, the reactions with excess benzyl bromide [42] or p-alkoxybenzyl bromide [43, 44] give only the hexabenzylated or hexaalkoxybenzylated complexes as the ultimate reaction products. Cleavage of the methyl group from the p-methoxybenzyl derivatives synthesized in this way yielded hexaphenolate stars, which could be combined with halogen-containing Fe-sandwich electrophilic compounds such as chlorocarbonylferrocene or [FeCp(7S-C6H5Cl)][PF6] (Scheme 9) [43, 44]. 

Osmium and the Halogens—Hexa-chlor-osmilos —Ilexa-ohlor-osmateH Omnium and Oxygon—Osmatcs—Osmyl Derivatives—Osmyl Oxy-Derivatives Osmium and kSulphur—Osmium and Nitrogen- - Osmo-cyanides. 

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