Draw structural formulas for the molecules listed below. Draw the mirror image of each. Circle t

Draw structural formulas for the molecules listed below....

Key Concepts

Structural Formulas

A structural formula is a diagram that depicts the arrangement of atoms and the bonds between them within a molecule. It provides crucial information about the connectivity and sometimes the three-dimensional arrangement of the atoms, which is essential for understanding the molecule's properties and reactivity.

Mirror-Image Isomers (Enantiomers)

Mirror-image isomers, or enantiomers, are pairs of molecules that are non-superimposable mirror images of each other. This concept is central to stereochemistry, as these isomers have identical physical and chemical properties except for the way they interact with plane-polarized light and other chiral environments.

Chirality

Chirality is a property of a molecule that describes its inability to be superimposed on its mirror image. This typically arises when a carbon or other atom is bonded to four different groups, creating a stereogenic center. The presence of chirality can significantly influence a molecule’s reactivity and interactions, particularly in biological systems.

Molecular Symmetry

Molecular symmetry involves the balance and arrangement of atoms within a molecule, which can lead to a molecule being superimposable on its mirror image. Symmetry elements such as planes of symmetry or centers of inversion are key in determining whether a molecule is achiral (non-chiral), despite having stereogenic centers in some cases.

Transcript

00:02 Hi there.

00:03 In this problem, we are given the molecular formula for four different molecules, and we're asked to draw the structural formula and its mirror image.

00:13 And from that information, determine which ones are going to be mirror image isomers.

00:19 So let's go ahead and get started with drawing our structural formulas.

00:25 Our first compound is ch4.

00:29 So its structural formula.

00:31 Will be carbon in the center, surrounded by four hydrogens.

00:40 I am going to use a blue line here to represent my mirror, and i'm going to draw the mirror image on the other side of that line.

00:58 All right, as we look at these two, we see they are the same on either side of the mirror.

01:04 Mirror image is the same, so this is not considered a mirror image isomer.

01:09 Let's go on and look at letter b.

01:11 Letter b, we have cfh3, putting carbon in the middle, f on one side, and h on three of the other sides.

01:31 Drawing our mirror in, let me draw my mirror image now.

01:46 Right, again, as we look at this one, the original molecule and its mirror image are the same.

01:53 So this is not a mirror image isomer.

01:57 Let's go on to letter c.

01:59 In letter c, we have c, c lf, h2.

02:24 There is my image.

02:28 Let's draw my mirror and my mirror image.

02:40 Notice this carbon has three different groups attached to it.

02:44 It has a fluorine, a chlorine, and then each of the hydrogens are the same groups...

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