Ethers and Thioethers
نویسنده
چکیده
Ethers are hydrocarbon derivatives containing a carbon-oxygen-carbon (C-O-C) fragment. Recall that carbon has a valence of four and thus requires four electrons or bonds to achieve an octet in its neutral state. Oxygen has a valence of six and thus requires two electrons or bonds to achieve an octet in its neutral state. In ethers there is a single oxygen atom bound to two carbons; in this bonding arrangement oxygen maintains two pairs of non-bonded electrons (NBEs) as is typical for oxygen in the neutral (uncharged) state:
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تاریخ انتشار 2005