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10. among the following, species expected to show fluxional behavior are a)inicl] (tetrahedral) b)if (pentagonal bipyramidal) cicofl (octahedral) d)fe(co)s (tri
10. Among the following, species expected to show fluxional behavior are A)INiCl] (tetrahedral) B)IF (pentagonal bipyramidal) CICoFl (octahedral) D)Fe(CO)s (trigonal bipyramidal) a) B and C b) B and D c)C and DD d) A and D
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Dinesh khalmaniya 1
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option B Explanation- When two or more Nuclear Configurations are Chemically equivalent then this type of stereochemical non-Rigidity is called Fluxionality and molecules are called Fluxional. Main Charateristic- ●A fluxional molecule is one that undergoes a dynamic molecular process that interchanges two or more chemically and/or magnetically different groups in a molecule. ●two Fluxional molecules have comparable stability. ●such molecules change between or among these structure continuously even at room temperature .thus these molecule are called stereochemically non rigid. ●Fluxional molecules have small Homo-Lumo gap and hence one configuration can be transformed into another configuration with low energy barrier to rotation.
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sir
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why A and C don't show fluxional behaviour?
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only TBP geometry wale hi dege organometallic compounds me
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yha berry pseudorotation hota he mean axial to equatorial or vice versa hota he
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complete details apko yha mil jayegi kon dega or nhi. http://signoftruth.com/wp/fluxionality-fluxional-molecules/
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Priyanshu kumar Best Answer
Fe(CO)5 show fluxional behavior by process called berry pseudo rotation. And molecule IF7 shows similar mechanism called Bartell mechanism which exchanges the axial atoms with one pair of the equatorial atoms with an energy requirement of about 2.7 kcal/mol
option B is correct
why A and C don't show fluxional behaviour?
Trigonal bipyramidal geometry show fluoxional behavior