Sunday, October 17, 2010

Long bond

The distance between the atoms in the molecule is characteristic of molecules and can provide valuable information when compared with the same bond in different molecules.
The primary method of determining the bond length and angle is the x-ray diffraction (for solids), electron diffraction (only for gas), and methods spektroskofi. The distance between the atoms in a bond is not constant because the molecules are always vibration, therefore the bond length is the average value and thus different measurement methods will give different results. Nevertheless, the acquisition value should only be recorded if the difference is very thin. Results of measurement accuracy varies, but there are indications that a similar bond has a very reasonable bond length is considered constant from one molecule to the next molecule. Generally should be entitled variation of less than 1%.

Bond lengths a number of crucial ties are given in Table 1.6. As appear in the table, the carbon bond shortened by increasing the character s. This fact can be explained that the increased s character of hybrid orbitals, the orbital hybrids become more similar to the orbital s, and therefore closer to the nucleus is less than the orbital character s.

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