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qblkjjt70
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Joined: 07 Apr 2011
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Location: England
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Organic Chemistry 101 |
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,[link widoczny dla zalogowanych]
hough carbon is not the most prevalent factor in the globe, it is an of the most versatile. Organic compounds are composed of carbon and hydrogen molecules, yet may too contain other elements. Some of the most common elements found in organic compounds embody oxygen, halogens, nitrogen, and sometimes sulfur or phosphorus.
Most organic compounds are covalently bonded, which allows them to form long, complicated carbon fetters and rings. Carbon atoms are very settled, and are able to form stable covalent bonds with one variant (understood as catenation). Unlike non-organic substances, organic compounds will usually melt or decompose if exposed to temperatures underneath 300 degrees Celsius. Another characteristic of organic compounds is that they tend to be extra soluble in organic solvents. Solubility, however, all depends above the overall structure of the compound and the functional groups present. A functional group refers to the parts of a molecule that make up its specific chemical nature.
Perhaps the most essential and most studied types of organic compounds are those namely include nitrogen. These compounds usually contain portions of the amino group. When the amino group combines with the carboxyl group,[link widoczny dla zalogowanych], amino sours are connate. Amino sours are regarded as the building blocks of proteins.
Scientists and researchers use several types of methods in mandate to determine the molecular structure of an organic compound. Here are the most common methods currently in use:
Crystallography: Crystallography namely the science of determining the preparations of atoms in solids. By studying the diffraction patterns given off by a sample, scientists are capable to determine its building. This namely the most precise method for studying compounds. However, most crystals are not colossal enough to generate a clear picture of some compounds.
Mass Spectrometry: This method involves examining the molecular heaviness and fragmentation pattern of a compound to determine its chemical structure.
Elemental Analysis: Elemental inquiry involves analyzing the sample of the compound to resolve its elemental and isotopic combination. In studying organic compounds mostly disastrous means, such as blaze atomic digestion alternatively graphite furnace atomic digestion,[link widoczny dla zalogowanych], are accustomed apt resolve the original combination of a particle.
Infrared Spectroscopy: Spectroscopy is used to determine the presence or want of functional groups to study the chemical ecology of a molecule.
UV/VIS Spectroscopy: Ultraviolet-Visible spectrophotometry to determine the nature of a compound. Spectrophotometry uses a spectrophotometer to measure how much light is sponged by the sample.
Nuclear Magnetic Resonance (NMR): NMR spectroscopy is one of the most common methods to win the physical, chemical, structural and electronic nature of a molecule. NMR goes by studying the magnetism of a nucleus by placing it in combination with a catching field, and then using one electromagnetic field to rend this alignment.
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Wed 2:21, 20 Apr 2011 |
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