donating to _ractat uv M4—L —(canying electron) L = ligand Abhishekh six # Types oF tigands __chemr'smy 1._Monadentate Itga nal haves an elechon iy to form. a toordinate bond “withthe: ¢einbral merat fon a Poiycentate Ugand_. x Ager hos two ow ‘move donour dioma tinted in the tenhral_ metal: jon #9 r a 7 mea t= NAD Cute — GH ____## EDTA: Fthylenediaminetetyareinie ib0.¢ T = C0 — CH?zz] _ampidentate. ligand. =+{1igand_abich have__ttwe _donaur ira) Ex M<— N or M-0-N =0 2 Terms used in cnordinaHon chemistry 1 Coordination Sphere =) i i ik ave _encinsed in a square bvarkeb Jhis 2 i cage o_discvete spructuval unit 40 Ka [Fe(eme] —5 4k + [Fecen)e] 2__Charg. Number oF complex jon /oxidation StateThe charge onsed by the mest. tons __ —it's oridabon state, > ereydinatien number. No oF donot atoms. £.N sfomptal fon) in a srenipiex ysuithes ——_Aumhey > CF I ligand -—anoun—dénens.wdineétiy Ht 1 Cy baiy ees in eRe ISREELS ‘hana "=. ponte sat and tesdinate comple = _Dewble salt: A double salt dissociates in ——_watey completely into Simple _jons. : ey Mehi's Salt z Fesoy (NH4)2 S04 6H20 wae Fe +2nHat 2s0q _— oe amen at For ex Tange 3a Falrecode] > ae? + (he (ented ceounter (complex jon) jon) 3 | werney theovl OF coordinaHion compleyes Postulate (i) : Have two types oF valency (primary) __¢ econdary] u N L Cienizabie) (non ionizable) Gi): i x primary valency OF the metal fit - ionizable sphere sah —__ the _setondary _valenty of the meta postulate Civ)! Secondary valencies have a merol ion % complex ~ with “coordination -numbey six has. nl 3 capaai - . * complex with coordinah'¢n numben * four ud _has tebrahedya) struchuralay quan. plana -= J —ClassiFication of complexes 1 = Abbishekb Sta — _ se — Che ir isha ——— HomolepHe complexes! __The_omplex— In-whrch_metal_ion 1s”: bound to ___ only. ont type. “of higanets.—aa.e- bomolepHe." __ ~_ iil, nerevoleptie: complestes Did da Siemans >| 6 omplexes —in_which_metal_lon_is ae = _sumounded by more than one, hype OF jigs and beteroleptic_ [co (NH aya cre] ® — tt} charqs on tne» co mp! deme. _- ——i__cationic complexes. positively! chorgecl_. coordination _s. Phere, —s—__ ——_—cailed__cationie complexs i An ionlo complexes... ie ion a —coorclination sphere js Called anionic com plexes. CNi (oN) * et ec _ complex. ———-hove__neithey colon nov anion but. aye — ptt _sphexe_eonaplene 3F Ai (co) ae Sg Tree as CznCnH 3)u] @it! na AC. ~unalakte—o . 9) tigand_nam = (oxidatio ee oy Latin La a en name~ ujond-nom. = ceohal mia. | atom + ate oxi no) ———________——___" Sree ue: | a emin¥ : se All ——=) Ligand name —_tenhal_metal nana = Covi no) anion name 4) tein) =) Ligand nami ~ centval muta ~ oxi no ~ ate- ion 5) cmtn jt =) Ligand nami =central_metal - oxi no = jon 3) i} CNICONJuJ 2 oxi ops Rt C-¥U: - 2 u-42~-2 | mH: -2t4 I tes - 2.2) seaium hex ant hace! bei trate ci oD oo __t# Effective Atomic Numb ev (EAN) + ‘ S atomic noo no oF AO OF metal elechon, Ligand a ex., CoC NNs]g 30 Ze 2t, X2 57212 EAN = 27- Stl2= 36 #_ Ispmevism in. coordinatton compotind, isomers _ave_diffexent compounds have san ___ ___molecutay formula, heir chemical _veattiviles and _physical_, pain Lett fRevent. — a2 | stereoisomers ee Eo es —"Tetereaisnmers have ihe samé_iint —amangq ——_constituent atoms __howevey_t he awengenrents| hn nsuperimposable frarax _innage — somers In this there ave iS and Frans, 7 ‘ ji yarent E - ri ¢ posibe Positions ili ej i Square pany Cc] NHB Gl ‘)NH3 PE PE et NH3 NHS cl Cis isomun trans Isomers fii]. c's and Trans in octahedral h Zpaus Hrecaiith wg acne ui HAN’ Odin gtadt | pty Hany Len tNW3 at Co ‘ raonga NNO | Han 7! NH3 han 7 | NAS NHS cr___¢) _ - ch tthe y-est se) } i oP — é CD acinar en. 7 Eda en } : & oa 1 al cis jsonun trons isonun aptical isomers The complex _moleculis pF jons that aye _- en, tT ee ne en eo norco en Lo —Y/ en en, i dextyo) mitror (laevo) hi LA L T ai 78 Cl [2° $ cl st en Pt f PE en t Len | en J cis ison Aouaal sing T" a ze | en PE er | ! trons _isomen | Cc) Ja___linkag isomer. . | “hese isomers are. formed when the ligend — _has two diferent donor atoms [cot nts) s(NoalJ? © and [eo cna)s Cono)] o— b._lonization isomers. _, Itls involve Ls epordinaHon and jontzatioen spheres FH [eotnns)s Sou] By and [cotNHs)s Ba] so4 | Hh c.tb- ordination isomers i i cc F i ii cationic and anionic Spnervps. oF diff metal ion i [eotnHsye [[creende] [evenade | [eotenye | i [Ccattonic) cantonye) tcatlonic) cantonre) I : ; — | i solvate_isomess SS = | [¢xCHad)s][Cla_ “and [cx(h2b)s ci]Cl2- Had I_ ah Stability oF “the coovdination compounds —___ __—The_stabil ity 0 E ‘coordination compounds can be_explained by knowing thely stability constants_.Jhe stability is qoverned _b ty _____— _—_metal_ligand interactions. ___________ mo8 4 py == Cin) Abhishek k= (Nu six cmyCtnj Chemishy Ls Enrinys which govern Stabiiihy pf ht rompley __ g)__chatgt to size vate — > qveatey charge _b)_Notuve oF Hae ligand. easily donate # Theovies of bonding in camplexes | eveT) 87) ‘valence Bond Theary_ (CFT) '- crystal’ Fleld Theory’ ~' ~' -* 730 a) [Cocnusde Lou2 spin pid. stare x¢-!) xe= 78 i (-6)--3 ll 2 -BtC I Taz +3]Hybridisation: d?Sp $ r Way 3d? 48? L 2sp? WH NH3 | HBN “J NH3 | | | | L NH3 I b. [oF] ** high spin Ovid np % 40-1) X6= 3 XC-6) 2-3 As -346 [us +3] (bor 3d? 43% Hybridisation - Spd ® Ee) et) yad [ F so _,aE. Tethahedval complex —— UNilena}? © oxid no M+ (-1) X42 2 xXl-4) 2-2 M2 -2+4 [ae +2] Nie 8d* 4s? Hybri =: d2sp3 dz ninth tl iat apy p53 T 7 ct 76 CAN ep cl a J