![]() ![]() ![]() Let us consider a molecule AB having the observed dipole moment = μ obs and the bond length l cm. Percentage ionic characterĭipole moment data is used to calculate the percentage ionic character of covalent or ionic heteronuclear diatomic molecules. It also helps to determine the size or shape of molecules and the arrangements of chemical bonds in the molecules. It is used for the calculation of the percentage ionic character, bond angle, electric polarization, and residual charge on the atoms in the molecules. Form the above formula, 1 Debye = 3.336 × 10 −30 coulomb m. Therefore, 4.8 Debye = 16 × 10 −30 coulomb m. Hence the unit of dipole moment in the SI system is the coulomb meter. In the SI system, the charge is expressed in coulomb and the length is meter. The charge is of the order of 10 −10 esu and the distance of separation is the order of 10 −8 cm. Therefore, the unit of dipole moment is esu cm. In the CGS system, the charge is expressed in esu and bond length in cm. Hydrogen chloride, water, methyl chloride, and benzyl chloride are examples of polar molecules. These molecules are called polar molecules. When the center of gravity of the positive charge does not coincide with the center of gravity of the negative charge, polarity arises in the molecules. ![]() It is a tool used to calculate the percentage ionic character, electric polarization, and residual charge on the atoms of the molecules. The polar molecules like water, ammonia, and methane have positive values. Perfectly non-polar molecules like hydrogen, oxygen, and nitrogen have zero dipole moment. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |