Textbook Question
For each of the following molecules, draw a 3-D representation.
(d) CHClBrI
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Ch. 6 - Stereoisomerism: Arrangement of Atoms in Space
Mullins1st EditionOrganic Chemistry: A Learner Centered ApproachISBN: 9780137566471
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Table of contents
- Ch. 2 - General Chemistry Translated: Finding the Electrons114
- Ch. 3 - Alkanes and Cycloalkanes: Properties and Conformational Analysis109
- Ch. 4 - Acids and Bases: Electron Flow144
- Ch. 5 - Chemical Reaction Analysis: Thermodynamics and Kinetics118
- Ch. 6 - Stereoisomerism: Arrangement of Atoms in Space112
- Ch. 7 - Principles of Green (Organic) Chemistry3
- Ch. 8 - Alkenes I: Properties and Electrophilic Additions158
- Ch. 9 - Alkenes II: Oxidation and Reduction150
- Ch. 10 - Alkynes: Electrophilic Addition and Redox Reactions101
- Ch. 11 - Properties and Synthesis of Alkyl Halides: Radical Reactions108
- Ch. 12 - Substitution and Elimination: Reactions of Haloalkanes172
- Ch. 13 - Alcohols, Ethers and Related Compounds: Substitution and Elimination239
- Ch. 14 - Structural Identification I: Infrared Spectroscopy and Mass Spectrometry54
- Ch. 15 - Structural Identification II: Nuclear Magnetic Resonance Spectroscopy93
- Ch. 16 - Metals in Organic Chemistry48
- Ch. 17 - Carbonyl Addition Reactions: Aldehydes and Ketones45
- Ch. 18 - Nucleophilic Acyl Substitution I: Carboxylic Acids18
- Ch. 19 - Nucleophilic Acyl Substitution II: Carboxylic Acid Derivatives39
- Ch. 20 - Enolates: Carbonyl Addition and Substitution13
- Ch. 21 - Conjugated Systems I: Stability and Addition Reactions56
- Ch. 22 - Conjugated Systems II: Pericyclic Reactions54
- Ch. 23 - Benzene I: Aromatic Stability and Substitution Reactions64
- Ch. 24 - Benzene II: Reactions Influenced by the Aromatic Ring62
- Ch. 25 - Amines: Structure, Reactions, and Synthesis27
- Ch. 26 - Amino Acids, Proteins, and Peptide Synthesis9
- Ch. 27 - Carbohydrates, Nucleic Acids, and Lipids54
Mullins1st EditionOrganic Chemistry: A Learner Centered ApproachISBN: 9780137566471Not the one you use?Change textbook
Chapter 5, Problem 9c
For each of the following molecules, draw a 3-D representation.
(c) CHBr3
Verified step by step guidance1
Step 1: Recognize the molecular formula CHBr₃ as a derivative of methane (CH₄), where three hydrogen atoms are replaced by bromine atoms. This molecule is called bromoform.
Step 2: Identify the central atom in the molecule. Carbon (C) is the central atom because it forms four bonds and is surrounded by hydrogen (H) and bromine (Br) atoms.
Step 3: Determine the molecular geometry using VSEPR theory. Since carbon has four single bonds (one to hydrogen and three to bromine), the electron pairs around the carbon atom will arrange themselves to minimize repulsion. This results in a tetrahedral geometry.
Step 4: Place the atoms in a 3-D tetrahedral arrangement. Carbon is at the center, with one bond pointing straight up (to hydrogen) and the other three bonds pointing downward and outward (to bromine atoms). The bond angles are approximately 109.5°.
Step 5: Represent the 3-D structure using wedge-and-dash notation. Use a solid wedge to show a bond coming out of the plane, a dashed wedge for a bond going behind the plane, and straight lines for bonds in the plane. Assign the bromine atoms to the positions with larger spatial demand due to their size compared to hydrogen.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Molecular Geometry
Molecular geometry refers to the three-dimensional arrangement of atoms within a molecule. It is determined by the number of bonding pairs and lone pairs of electrons around the central atom, which influences the shape of the molecule. Understanding molecular geometry is crucial for visualizing how molecules interact and react with one another.
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Molecular Geometry Explained.
VSEPR Theory
Valence Shell Electron Pair Repulsion (VSEPR) theory is a model used to predict the geometry of individual molecules based on the repulsion between electron pairs in the valence shell of the central atom. According to VSEPR, electron pairs will arrange themselves to minimize repulsion, leading to specific molecular shapes. This theory is essential for accurately drawing 3-D representations of molecules like CHBr₃.
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Stereochemistry
Stereochemistry is the study of the spatial arrangement of atoms in molecules and how this affects their chemical behavior. It includes concepts such as chirality and geometric isomerism, which are important for understanding the 3-D structure of molecules. In the case of CHBr₃, recognizing the stereochemical aspects helps in accurately depicting its three-dimensional conformation.
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Related Practice
Textbook Question
Identify all planes of symmetry in the following molecules/conformations, if any.
(c)
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Textbook Question
Identify all planes of symmetry in the following molecules/conformations, if any.
(f)
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Textbook Question
Identify all planes of symmetry in the following molecules/conformations, if any.
(d)
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Textbook Question
For each of the following molecules, draw one 3-D representation at only the necessary atoms (that is, the ones with four different atoms/groups attached).
(b)
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Textbook Question
For each of the following molecules, draw one 3-D representation at only the necessary atoms (that is, the ones with four different atoms/groups attached).
(a)
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