Difference Between Crystal Field Stabilization Energy and ...

In crystal field splitting, the d orbitals of the central metal atom tend to split into two or more energy levels to allow the ligands to bind ... Home/Science&Nature/Science/Chemistry/InorganicChemistry/DifferenceBetweenCrystalFieldStabilizationEnergyandSplittingEnergy Thekeydifferencebetweencrystalfieldstabilizationenergyandsplittingenergy isthatcrystalfieldstabilizationenergyreferstotheenergydifferencebetweentheenergyoftheelectronconfigurationoftheligandandtheenergyofelectronconfigurationoftheisotropicfield.Meanwhile,crystalfieldsplittingenergyreferstotheenergydifferencebetweendorbitalsoftheligands. Thetermscrystalfieldstabilizationenergyandsplittingenergycomeunderthecrystalfieldtheory.ThecrystalfieldtheoryorCFTisachemicalconceptwhichdescribesthebreakdownofthedegeneraciesoftheelectronorbitalsduetoachargedistributioninthesurrounding.Thistheoryisveryusefulinexplainingthepropertiesoftransitionmetalcomplexes. CONTENTS 1.OverviewandKeyDifference 2.Whatis CrystalFieldStabilizationEnergy  3.WhatisCrystalFieldSplittingEnergy 4.SidebySideComparison–CrystalFieldStabilizationEnergyvsSplittingEnergyinTabularForm 5.Summary WhatisCrystalFieldStabilizationEnergy? CrystalfieldstabilizationenergyorCFSEreferstotheenergydifferencebetweentheenergyoftheelectronconfigurationoftheligandandtheenergyofelectronconfigurationoftheisotropicfield.Whenaligandcomesclosertothemetalcentre,thereisarepulsionbetweentheelectronsoftheligandandtheelectronsofthemetalatom.Asaconsequence,thedorbitalsofthemetalatomtendstosplitintotwosetswhentheligandapproachesthemetalatom.Thetwosetsoforbitallevelsarenamedegandt2g.Theenergydifferencebetweenthesetwoenergylevelsetsisequaltothecrystalfieldstabilizationenergy.So,thisenergyvalueexplainsthestrengthoftherepulsiveforcebetweenelectronsoftheligandandtheelectronsofthemetalatom. Figure01:TwoSetsofOrbitalSplitting Thereareafewfactorsthatcanaffectthecrystalfieldstabilizationenergy: Natureoftheligand Natureofthecentralmetalatom Geometryofcoordinationcomplex Quantumnumberofthecentralmetalatom WhatisCrystalFieldSplittingEnergy? Crystalfieldsplittingenergyreferstotheenergydifferencebetweendorbitalsoftheligands.Anothernameforthistermisligandfieldsplittingenergy.WeusetheGreekletterΔtodenotecrystalfieldsplitting. Figure02:ThreeSetsofOrbitalSplitting Incrystalfieldsplitting,thedorbitalsofthecentralmetalatomtendtosplitintotwoormoreenergylevelstoallowtheligandstobindwiththemetalatomviacoordinatebonding.Theenergydifferencebetweenthedorbitalsplittinglevelsiscalledthecrystalfieldsplittingenergy. WhatistheDifferenceBetweenCrystalFieldStabilizationEnergyandSplittingEnergy? Thetermscrystalfieldstabilizationenergyandsplittingenergyfallunderthecrystalfieldtheory.Thekeydifferencebetweencrystalfieldstabilizationandsplittingenergyisthatcrystalfieldstabilizationenergyreferstotheenergydifferencebetweentheenergyoftheelectronconfigurationoftheligandandtheenergyofelectronconfigurationofisotropicfield.But,thecrystalfieldsplittingenergyreferstotheenergydifferencebetweendorbitalsoftheligands. Belowinfographicsummarizesthedifferencebetweencrystalfieldstabilizationandsplittingenergy. Summary– CrystalFieldStabilizationEnergyvsSplittingEnergy Thetermscrystalfieldstabilizationenergyandsplittingenergyfallunderthecrystalfieldtheory.Thekeydifferencebetweencrystalfieldstabilizationandsplittingenergyisthatthecrystalfieldstabilizationenergyreferstotheenergydifferencebetweentheenergyoftheelectronconfigurationoftheligandandisotropicfield.But,crystalfieldsplittingenergyreferstotheenergydifferencebetweendorbitalsoftheligands. Reference: 1.“CrystalFieldStabilizationEnergy.” ChemistryLibreTexts,Libretexts,5June2019,Availablehere. 2.Khalid,Amna.“CrystalFieldStabilizationEnergy.” LinkedInSlideShare,11Mar.2018,Availablehere. 3.“Crystal-FieldSplittingEnergy.” EncyclopædiaBritannica,EncyclopædiaBritannica,Inc.,Availablehere. 4.Helmenstine,AnneMarie.“CrystalFieldSplittingDefinition.”ThoughtCo,Mar.28,2019,Availablehere. ImageCourtesy: 1.“Octahedralcrystal-fieldsplitting”ByEnglishWikipediauserYanA(CCBY-SA3.0)viaCommonsWikimedia 2.“Squareantiprismatic”ByTheoriginaluploaderwasYanAatEnglishWikipedia.(Originaltext:YanA)–Ownwork(Originaltext:self-made)(CCBY-SA3.0)viaCommonsWikimedia Relatedposts: DifferenceBetweenAluminiumandAlumina DifferenceBetweenOxygenandOzone DifferenceBetweenNucleotideandBase DifferenceBetweenOxideandDioxide DifferenceBetweenLyeandCausticSoda AbouttheAuthor:MadhuMadhuisagraduateinBiologicalScienceswithBSc(Honours)DegreeandcurrentlypersuingaMastersDegreeinIndustrialandEnvironmentalChemistry.Withamindrootedfirmlytobasicprincipalsofchemistryandpassionforeverevolvingfieldofindustrialchemistry,sheiskeenlyinterestedtobeatruecompanionforthosewhoseekknowledgeinthesubjectofchemistry. LeaveaReplyCancelreply Youremailaddresswillnotbepublished.Requiredfieldsaremarked*CommentName* Email* Website FeaturedPosts YouMayLike LatestPosts WhatistheDifferenceBetweenZakatandSadaqah WhatistheDifferenceBetweenPapulesandPustules WhatistheDifferenceBetweenUbiquinolandCoQ10 WhatistheDifferenceBetweenUbiquinoneandPlastoquinone WhatistheDifferenceBetweenHeliophytesandSciophytes WhatistheDifferenceBetweenAlphaArbutinandVitaminC Home Vacancies About RequestArticle ContactUs