Bond dissosication energy question

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To calculate the bond dissociation energy for K+Br-, knowing only the bond length, one can utilize the Born-Haber cycle, which is applicable for purely ionic bonds. This method involves calculating the energy based on electrostatic attraction between the ions. By using the known charges of the ions and their initial distance, one can estimate the energy by considering the work done to separate the ions to infinity. The discussion highlights the challenge of determining vibrational frequency (ω) and the dissociation energy (De) without additional data, emphasizing the need for alternative approaches in inorganic chemistry to derive bond dissociation energy from fundamental principles.
cake_is_a_lie
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Hello,
How can I calculate the bond dissociation energy for K+Br- when I only know the the length of the bond?
Equation D0 = De - 0.5hω does not help because I do not know ω and De. ω is the vibrational frequency of the bond.
Thank you for your advice beforehand.
 
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isn't there an inorganic chemistry way to this.
I'm not really sure but i do remember finding energy of NaCl by i guess born haber cycle
 
If you assume its a purely ionic bond, you can calculate its energy just from electrostatic attraction. You know the initial distance, you known charges, just move atoms to infinity.
 

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