1. Introduction
The group XVII elements are known for its reactivity, especially with the group I metals, to form salts, giving these reactive elements the name halogens. With just one more electron to fill the valence shell to form an octet, halogens tend to attract electrons, resulting in their relatively high electronegativity. Within the group, the smaller the atomic number, the larger its electronegativity the element has, making fluorine the most electronegative element in the whole periodic table. 2 species of halogens forms compounds known to be interhalogens.1 Interhalogens normally exist in the form of XYn, where X is the less electronegative central atom, Y is the more electronegative ligands and n can be 1, 3, 5, or 7.1
The experiment aims to synthesize an interhalogen, …show more content…
As all bonding are at the p-orbital whose valence shells are looped linearly, the Cl-I-Cl bonds that are linear (which has 4 in the dimer molecule, each circled) are all examples of hyervalence.
The molecule, however, is unstable in both air and aqueous environment and will decompose in the following equation:1 ii) 2ICl3 + 3H2O ⇋ ICl +HIO3 + 3HCl
In this experiment, the decomposition of ICl3 is monitored by UV-Vis spectrometry is run on the sample. By the Beer-Lambert Law, the absorbance (A) is directly proportional to the wavelength (λ) and the concentration (c) for the same depth of the container. By running a multi-wavelength spectrometry on the sample at different time intervals, the difference of the 2 absorbance peaks can be compared so as to monitor the rate of
The group XVII elements are known for its reactivity, especially with the group I metals, to form salts, giving these reactive elements the name halogens. With just one more electron to fill the valence shell to form an octet, halogens tend to attract electrons, resulting in their relatively high electronegativity. Within the group, the smaller the atomic number, the larger its electronegativity the element has, making fluorine the most electronegative element in the whole periodic table. 2 species of halogens forms compounds known to be interhalogens.1 Interhalogens normally exist in the form of XYn, where X is the less electronegative central atom, Y is the more electronegative ligands and n can be 1, 3, 5, or 7.1
The experiment aims to synthesize an interhalogen, …show more content…
As all bonding are at the p-orbital whose valence shells are looped linearly, the Cl-I-Cl bonds that are linear (which has 4 in the dimer molecule, each circled) are all examples of hyervalence.
The molecule, however, is unstable in both air and aqueous environment and will decompose in the following equation:1 ii) 2ICl3 + 3H2O ⇋ ICl +HIO3 + 3HCl
In this experiment, the decomposition of ICl3 is monitored by UV-Vis spectrometry is run on the sample. By the Beer-Lambert Law, the absorbance (A) is directly proportional to the wavelength (λ) and the concentration (c) for the same depth of the container. By running a multi-wavelength spectrometry on the sample at different time intervals, the difference of the 2 absorbance peaks can be compared so as to monitor the rate of