PROPERTIES OF ALKYL HALIDES

Alkyl halides have large dipole moments since the carbon-halogen bond is polar. They also have reasonably high boiling points because of the polarity and the high molecular weights. 

Alkyl halides are generally insoluble in water. Density of alkyl halides increases as the atomic weight of the halogen present increases. The heavier the halogen is, the higher the density. 

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Polyvinylchloride can also be anionically grafted. With this method the chain breaking property of alkyl halides is utilised whereby the active anionic polymer is terminated with the alkyl group in the case of PVC the anionically synthesised polymer becomes the grafted chain 21). Hereafter, this review will be concerned only with those grafting methods involving azo functions. 

Conformational and chiroptical properties of alkyl halides TABLE 11. Barriers to rotation in methyl- and tert-butyl compounds0... 

The chiroptical properties of alkyl halides have not attracted much attention in recent years and advances have been incremental or incidental. But this may be a field that has lain fallow long enough to merit renewed cultivation. We will note here some of the reviews and compilations—some of which are rather old—that summarize the current position and will comment on several recent results that suggest areas that might now be open to fruitful research. 

The properties of alkyl halides dictate their reactivity. The electrostatic potential maps of four simple alkyl halides in Figure 7.5 illustrate that the electronegative halogen X creates a polar C - X bond, making the carbon atom electron deficient. The chemistry of alkyl halides is determined by this polar C-X bond. 

AMPHOTERIC PROPERTIES OF ALKYL HALIDES AND ACID HALIDES. I. REACTION WITH TIN TETRACHLORIDE AND TIN TETRABROMIDE. 

THE AMPHOTERIC PROPERTIES OF ALKYL HALIDES AND ACID HALIDES. II. INTERACTION WITH NITRILES. //ENGLISH TRANSLATION OF ZH. OBSHCH. KHIM. 39 /3/ 493-7,... 

Lin, C. Y., M. L. Coote, A. Gennaro, and K. Matyjaszewski. Ah initio evaluation of the thermodynamic and electrochemical properties of alkyl halides and radicals and their mechanistic implications for atom transfer radical polymerization. J. Am. Chem. Soc. 130, 2008 12762-1277. 

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