Molekulski kristali

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molecular crystals



Također vas mogu zanimati sljedeći pojmovi / You may also be interested in the following terms:

  1. molekula - molecule
  2. molekula vode - water molecule
  3. molekulama - Ion-Molecule Interaction, molecules
  4. molekularna biologija - molecular biology
  5. molekularna dijagnostika - glyco-probes, molecular diagnostic
  6. Molekularna dinamika - Molecular dynamics

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Prevously posted comments:

Sandro, (27.01.2009)
Hrvatski: Molekulski ili molekularni kristajl je Kristal cije su molecule spojene slabom fizickom vezom (Van Der Valove sile dipolarne veze ili hidrogenske veze). U molekulskim kristalima dijelovi koji cine Kristal su molecule. Molekule su formirane pute kovalentnih veza izmedju atoma. Ako centar negativnog naboja i centar pozitivnog naboja nadju se jedna pored drugog unutar molekule tada je ta molécula zvana ne-polarna (nonpolar) molécula.

English A molecular crystal is a crystal whose molecules are held together by weak physical bonding such as van der Waals forces, dipole-dipole bonds, or hydrogen bonding as opposed to chemical bonding like ionic or metallic bonds. In such a crystal, the constituent particles are molecules. They are formed by covalent bonds between the atoms. If the centre of negative charges and the centre of positive charges coincide in a molecule, it is called a nonpolar molecule. The bond between polar molecules is called a dipole–dipole bond, whereas the bond between nonpolar molecules is called a van der Waals bond. Molecular solids are usually soft, have low melting points and are poor conductors of electricity.

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