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kay
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As in what are the conditions for resonance (i.e. in oganic chemistry) to occur? Sometimes it occurs, sometimes it doesn't; for reasons unknown. A little help please? :/
kay said:As in what are the conditions for resonance (i.e. in oganic chemistry) to occur? Sometimes it occurs, sometimes it doesn't; for reasons unknown. A little help please? :/
What i meant to say was that when does resonance occur? what are the conditions necessary for resonance to take place? I'm not asking how to draw resonating structures. My mind was searching for the fact on the basis of which i would be able to decide whether i COULD make resonating structures or notQuantum Defect said:Generally, if you can draw different Lewis structures with different arrangements of double bonds, then the different structures are resonance structures. Some resonance structures may be more or less important. All resonance structures are not create equal -- some represent higher energy structures.
kay said:What i meant to say was that when does resonance occur? what are the conditions necessary for resonance to take place? I'm not asking how to draw resonating structures. My mind was searching for the fact on the basis of which i would be able to decide whether i COULD make resonating structures or not
Thank you so much. :DYgggdrasil said:Resonance structures come about whenever you have a conjugated system that can delocalize electrons over more than two atoms. The requirements for a conjugated system are having three or more adjacent atoms with parallel p-orbitals. Here's a nice page describing ways to look for whether your molecule will exhibit conjugation: http://www.masterorganicchemistry.com/2011/03/08/are-these-alkenes-conjugated/
Resonance occurs when an object is subjected to a periodic force at the same frequency as its natural frequency.
Vibration refers to the back and forth motion of an object, whereas resonance is the phenomenon of an object vibrating at its natural frequency in response to an external force at the same frequency.
Resonance can cause destructive vibrations in structures, leading to potential damage or collapse. It is important to consider resonance when designing and building structures to prevent these effects.
Yes, resonance can also be used to our advantage in various technologies such as musical instruments, radio receivers, and MRI machines. In these cases, resonance is carefully controlled and harnessed for its intended purpose.
Resonance can be avoided by ensuring that the frequency of any external force is different from the natural frequency of the object. This can be achieved by using dampers or changing the material or design of the object.