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After completing these activities,
students should:
- Define what is meant by the term 'molecular ion' in the mass
spectrum of an organic compound and identify the peak responsible.
- Explain how several peaks corresponding to fragment ions of
lower mass than the molecular ion arise in the mass spectra of
organic compounds, producing a characteristic relative abundance
pattern.
- State that more stable fragment ions, such as certain
carbocations and acylium (RCO+) ions, give rise to higher peaks.
- Appreciate that certain functional groups in organic molecules
absorb infrared radiation at certain characteristic frequencies,
producing absorption bands in infrared spectra.
- Use infrared spectra to identify particular functional groups,
and to identify impurities in simple organic molecules, with the
help of correlation charts.
- Describe how an organic molecule can be identified by comparing
the 'fingerprint' region of its infrared spectrum with that of a
known compound.
- Outline how 1H nuclear magnetic resonance (NMR) gives
information about the relative number and position of hydrogen atoms
in an organic molecule.
- Explain the use of deuterated solvents in NMR spectroscopy.
- Explain the use of tetramethylsilane (TMS) as a reference
standard in NMR spectroscopy and the use of the chemical shift δ
scale.
- Explain that the chemical shift of a hydrogen atom depends on
its chemical environment within an organic molecule.
- Describe how integrated NMR spectra show the relative numbers of
hydrogen atoms in different environments in a molecule.
- Use information from three spectroscopic techniques (mass
spectrometry, and infrared and NMR spectroscopy), together with
elemental analysis data, to determine the structure of simple
organic compounds.
Lesson: Structure Determination
How does a modern chemist find out the detailed structure of
complicated organic molecules, such as the powerful anti-cancer agent
taxol, recently isolated from yew trees? Knowing the structure of such
molecules is important in providing an understanding of how they
function in the body. This in turn helps us to understand how and why
certain diseases occur, and suggests ways of designing molecules to
treat them.
An important biologically active molecule may only be extracted in
small quantities from natural sources. To be able to devise routes to
synthesise the molecule in the laboratory, chemists need to know
exactly how all the atoms are linked together. The more atoms there
are in the molecule, the more possibilities for isomers exist. Some
isomers may be effective, others may not be, or may even be harmful.
Mass spectrometry, infrared (IR) spectroscopy and nuclear magnetic
resonance (NMR) spectroscopy are three of the routine instrumental
techniques now used for structure determination in most organic
chemistry laboratories around the world. Capable of dealing with
samples as small as a nanogram (10–9 g) in some cases, and linked to
large computer libraries of known structures, these techniques have
largely replaced 'wet' chemical tests in the determination of the
structure of molecules.
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System Requirements:
Windows
Pentium III class processor; Windows 95, 98, Me, NT 4.0, 200 & XP;
600MHz processor; 128 MB RAM; sound card; video display at 1024 x
768 resolution; 32 bit colour; 3D acceleration. |
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This interactive tutorial package introduces the basic concepts of
Organic Chemistry covered in introductory college level Organic Chemistry
courses.
Teachers can use this program as a demonstration and visualization tool
in their classroom lectures. They can draw from the various interactive
exercises to explain concepts that may be difficult to show using a
traditional blackboard or overhead projector. By switching off the audio,
teachers can present ideas in class in their own way.
Students can use the program as an exciting learning tool that can
supplement in-class lectures and textbook studying. They can use this
program as a self-study tool to review topics they are having trouble
understanding in order to prepare for lectures and exams.
The program takes advantage of multimedia technology to present
teachers and students with a new way of approaching and understanding the
challenging concepts and ideas found in Organic Chemistry.
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Easy to use table of contents, glossary and key word searches
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Flexible plotting, drag and drop exercises
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Convenient pull down calculator, glossary, note pad, periodic
table and many tables of useful data
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Quizzes with step-by-step feedback
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Hundreds of interactive movies and animations
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Many concise voice comments by Dr. Bryan Sanctuary emphasize the
key ideas that students need to understand
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Designed to accompany any text
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Over 200 hours of study material on each CD
Table of Contents
Overview of organic chemistry, Stereochemistry, Chemical
bonds and hybridisation, Acid-base reactions, Organic reaction types,
Nomenclature, Functional group chemistry, Alkenes, Alcohols, Ethers,
Aromatic compounds, Aldehydes and ketones, Carboxylic acids, Amines,
Biochemistry
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System Requirements:
Macintosh: 16 MHz 68020 or better, MacOS 6.07, 640 x 480 colour monitor, 256
colours, 4MB free RAM, CD-ROM drive required.
Windows:
486/20 PC Windows 3.1, 95, 98, 4MB free RAM, VGA graphics, 256
colours, sound card required but not necessary, CD-ROM drive required. |
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After completing these activites,
students should:
- Give the correct name of a wide range of aliphatic and aromatic
compounds.
- State condensed and structural formulae for a range of
compounds.
- Give examples of different types of isomerism.
Chemists can name only some of the range of seven million organic
compounds systematically by using the rules for naming aliphatic
compounds (compounds based on carbon chains). This range can be
extended using other homologous series such as ethers, esters and
amines.
The range can be extended even further by looking at the rules for
naming aromatic compounds. Aromatic compounds are ring compounds based
on benzene. Even with the naming system introduced in 1948, some
non-systematic names still exist such as benzene and phenol.
As the number of organic compounds studied increases there are more
examples of isomerism – structural, geometric and optical – to be recognised.
Lesson: Extending the Range of Organic Compounds
This activity guides the students though naming aliphatic
compounds, geometric isomers, aromatic compounds; identifying other
acid derivatives, ring compounds, amino acids, and aromatic compounds.
Lesson: Isomerism
This activity centres on geometric isomerism, optical isomerism,
chain isomerism, position isomers, functional group isomers 1 & 2,
isomerism in amines and Aromatic isomers.
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System Requirements:
Windows
Pentium III class processor; Windows 95, 98, Me, NT 4.0, 200 & XP;
600MHz processor; 128 MB RAM; sound card; video display at 1024 x
768 resolution; 32 bit colour; 3D acceleration. |
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After completing these activities,
students should:
- Describe the difference between empirical formula, molecular
formula and structural formula.
- Define the term 'homologous series'.
- Name organic compounds with up to six carbon atoms from these
groups: alkanes, alkenes, haloalkanes, alcohols, aldehydes, ketones
or carboxylic acids.
- Describe the meaning of the term 'structural isomerism' and give
simple examples.
- Identify cis-trans isomers as examples of geometric isomerism
and explain that these are caused by restricted rotation about a
carbon-carbon double bond.
- Give examples of cis-trans isomers.
- Explain that an asymmetric carbon atom is chiral, that it gives
rise to optical isomers, and that such isomers exist as mirror
images and differ only in their effect on plane-polarized light.
Lesson: Nomenclature and Isomerism
These activities introduce students to the IUPAC system for naming
organic compounds. Interactive screens enable students to apply the
system to the naming of compounds from seven different homologous
series. An animated three-dimensional model of each compound is
provided, along with its structural formula. These particular screens,
which provide a wide range of examples that students can use to test
themselves, also lend themselves well to use during revision.
Diagrams and animations demonstrate three types of isomerism:
structural isomerism, geometric isomerism and optical isomerism.
Students are given opportunities to identify examples of each type. To
help them learn about structural and geometric isomerism students are
given the chance to build structural formulae of different isomers by
moving carbon and hydrogen atoms into the correct places. Optical
isomerism is a difficult concept to describe in two-dimensional
formats. The screens provide a particular advantage here, allowing the
student to rotate molecules to see where non-superimposable molecules
exist. This enables chiral centres to be identified easily. Finally,
animations are used to examine the effect of different optical isomers
on plane-polarized light.
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System Requirements:
Windows
Pentium III class processor; Windows 95, 98, Me, NT 4.0, 200 & XP;
600MHz processor; 128 MB RAM; sound card; video display at 1024 x
768 resolution; 32 bit colour; 3D acceleration. |
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Biochemistry: The Chemistry of Life |
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5 User Lab Pack |
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Cat.# CYC-1LP |
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$410.00 |
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Do you want to better understand
life on the molecular level? Explore atoms, elements, molecules, and
the chemical compounds of life with Biochemistry: The Chemistry of
Living Things.
Colourful molecular models utilize special effects to achieve a feeling
of movement and transformation as the various chemical bonds and
compounds are covered. Tutorials reinforce concepts and help students
learn the practice of identifying chemical formulas and their
corresponding structural formulas. Learn about essential compounds,
how to label amino acids, and more!
Topics covered on this
program:
Atoms, elements, and molecules - atomic structure - electron
energy levels - compounds - chemical bonds - valence electrons -
single, double, and triple covalent bonds - and more.
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System Requirements:
Windows: 16MB of
available RAM; 2MB hard disk space; mouse; sound card; CD-ROM
drive. Pentium
Class processor; S-VGA graphics card with compatible monitor and
640 x 480 resolution at thousands of colours; Windows 9x, ME, NT,
XP, 2000. Macintosh: PowerMac, iMac, or PowerPC; OS 7.5.1, OS 9in Classic mode. |
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