bond dipole造句

• The main issue is that hydrogen bonding is determined by Bond dipole moment.
• If the bond dipole moments of the molecule do not cancel, the molecule is polar.
• The vector addition of the individual bond dipole moments results in a net dipole moment for the molecule.
• The bond dipole moment is calculated by multiplying the amount of charge separated and the distance between the charges.
• The vector sum of the transferred bond dipoles gives an estimate for the total ( unknown ) dipole of the molecule.
• Often bond dipoles are obtained by the reverse process : a known total dipole of a molecule can be decomposed into bond dipoles.
• Often bond dipoles are obtained by the reverse process : a known total dipole of a molecule can be decomposed into bond dipoles.
• In general, a molecule will not possess dipole moment, if the individual bond dipole moments of the molecule cancel each other out.
• For example, the zero dipole of CO 2 implies that the two C = O bond dipole moments cancel so that the molecule must be linear.
• This is done to transfer bond dipole moments to molecules that have the same bonds, but for which the total dipole moment is not yet known.
• For polyatomic molecules there is more than one bond, and the total molecular dipole moment may be approximated as the vector sum of individual bond dipole moments.
• The bond dipole is modeled as + ? & mdash; ?-with a distance " d " between the partial charges + ? and ? -.
• For ozone ( O 3 ) which is also a bent molecule, the bond dipole moments are not zero even though the O " O bonds are between similar atoms.
• Due to the difference in electronegativity, there is a bond dipole moment pointing from each H to the O, making the oxygen partially negative and each hydrogen partially positive.
• For diatomic molecules there is only one ( single or multiple ) bond so the bond dipole moment is the molecular dipole moment, with typical values in the range of 0 to 11 D . At one extreme, a symmetrical molecule such as chlorine,, has zero dipole moment, while near the other extreme, gas phase potassium bromide, KBr, which is highly ionic, has a dipole moment of 10.5 D.