Electronic Effects
The effect of electrons that are located in the chemical bonds within the atoms of the molecule is termed an electronic effect. The electronic effect is also explained as the effect through which the reactivity of the compound in one portion is controlled by the electron repulsion or attraction producing in another portion of the molecule.
Drawing Resonance Forms
In organic chemistry, resonance may be a mental exercise that illustrates the delocalization of electrons inside molecules within the valence bond theory of octet bonding. It entails creating several Lewis structures that, when combined, reflect the molecule's entire electronic structure. One Lewis diagram cannot explain the bonding (lone pair, double bond, octet) elaborately. A hybrid describes a combination of possible resonance structures that represents the entire delocalization of electrons within the molecule.
Using Molecular Structure To Predict Equilibrium
Equilibrium does not always imply an equal presence of reactants and products. This signifies that the reaction reaches a point when reactant and product quantities remain constant as the rate of forward and backward reaction is the same. Molecular structures of various compounds can help in predicting equilibrium.
Suppose you set out to design a new green dye. Over what range of wavelengths would you want your trial compound to absorb light?
A green dye is a primary color which is usually obtained by smelting cactus in a furnace. This is used to recolor a number of items such as gunpowder to make fire work star, compounds to craft balloons or glow stick, wool, leather armor, glass etc..
Green is unique and the dye can be created if the trial compounds absorbs light at both extreme ends of the VIBJYOR. That is absorption close to 400 nm as well as near 800 nm. Chlorophyll, which is the pigment that provides green color to plants absorbs light at the red end of the spectrum and light in the blue end also. So we are observing a green leaf as green not because of the absorption of light at 500 nm, which is represented as green in the emission spectra instead it is reflected back into our eyes after absorbing light of some different wavelength(say 400 and 800 nm) . The emission spectra shows green at a wavelength close to 500 nm.
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