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Chapter 9: Problem 109

Among the common inhaled anesthetics are halothane: \(\mathrm{CF}_{3} \mathrm{CHClBr}\) enflurane: CHFClCF \(_{2} \mathrm{OCHF}_{2}\) isoflurane: \(\mathrm{CF}_{3} \mathrm{CHClOCHF}_{2}\) methoxyflurane: \(\mathrm{CHCl}_{2} \mathrm{CF}_{2} \mathrm{OCH}_{3}\) Draw Lewis structures of these molecules.

Short Answer

Expert verified
Lewis structures are graphical representations of the bonds between atoms and depict the lone pair of electrons in molecules. In this exercise, Lewis structures for Halothane, Enflurane, Isoflurane and Methoxyflurane have been drawn considering the number of valence electrons and the types of bonds they can form to adhere to the octet rule.

Step by step solution

01

Understand Lewis Structures

To start drawing the Lewis structures, it's fundamental to understand the concept. A Lewis dot structure is a graphical representation of the molecular structure of a chemical compound where all the valence electrons participating in forming bonds are represented by dots around the atomic symbols. First, locate each atom in the periodic table to determine the number of valence electrons.
02

Draw Lewis structure for Halothane (\(CF_{3}CHClBr\))

Start with Carbon atom (C) at the center as it can form four bonds. Connect three Fluorine atoms (F) and one Hydrogen atom (H) to it. Each F and H atom complete their octet/sextet by taking up one electron from Carbon. Now carbon is connected to Chlorine (Cl) and then to Bromine (Br) atom respectively, with both completing their octet by forming one bond with their neighbors.
03

Draw Lewis structure for Enflurane (\(CHFClCF_{2}OCHF_{2}\))

Again place Carbon (C) at the center and connect one Hydrogen (H), one Fluorine (F), one Chlorine (Cl), and a Carbon (C). All of these atoms complete their octet/sextet by taking one electron from the central Carbon atom. The second Carbon atom is then connected to two Fluorine atoms and further to Oxygen. A final Carbon atom is attached to the Oxygen, and the structure ends with four attachments: two Fluorine atoms and one Hydrogen.
04

Draw Lewis structure for Isoflurane (\(CF_{3}CHClOCHF_{2}\))

Start with the Carbon (C) atom at the center and connect it to three Fluorine (F) atoms and one Hydrogen (H). Then, attach Carbon to Chlorine (Cl) and then Oxygen (O). The structure is completed by attaching a Carbon to the Oxygen, with two Fluorine and one Hydrogen bonded to it.
05

Draw Lewis structure for Methoxyflurane (\(CHCl_{2}CF_{2}OCH_{3}\))

Starting with Carbon at the center, attach one Hydrogen, and two Chlorine atoms. Further connects to another Carbon atom attached to two Fluorine atoms. This Carbon is connected to Oxygen and finally ends with attaching a Carbon bound to three Hydrogen atoms and one Oxygen atom.

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