Geometrical Isomerism in Compounds PDF

|32 Geometrtal is oneris m in Com pounds moe than dousk Londs. CAttYnate Centainng douhle Sonds: Tf compownd rs Cons tuhna...

|32 Geometrtal is oneris m in Com pounds moe than dousk Londs. CAttYnate Centainng douhle Sonds: Tf compownd rs Cons tuhnaly wnsymmetri cal : Case-I: d a =CHCHH CH= e b (od CH=C =CH-CCH=c) d a b GeemetrtCal 4ota! hen, double Lends. where, h =cH -CH=ctt-ct-ct bepta-2,4-diene -CH CH-cHg =H-ct=C They ae, = = 4. isomars 2  number crers= cal is ometri Ge d n when +hen, odd emers= is calometri Ge nunberd 3when n +hun, eveb) dousk whether odd OY even no.d ten +he Geometri cal dr ber nwm pends deoes iS C=H-(c#=cHCH b b-2 Corspownd -I: Case ymmetrtcal: tuton lyal Const trens). Ctrans- trans-crs) H H -tran s) (cis (cis-cis) H H 133  Heya-2,4-diene. (Hc-cH=CH-ct =cH-cIg) (34.c Hg. -=cH-ct=c 2 n=2 Ceven). GrIs = 2 2-) 2 They ane, H H -trons). (Cis-cis) (+rans +rans) trans-cis) (cis Cicentcal)  |35 hemetri Cal i5oneuis m in t e compownds ntinihg Cumulative odd dousk bonds (3, 5 ---J: hene, Cplanar). lat ) =c=c=c H Ctrans) (ers) tvans isemers: Cis geometri Cal iseners Proprties cis - is mers have pipole mment u): Genehaly. iscmes. +he trans dipole mcment than trans - reater more polar than Cis- iisomers Hena, iscvers Boiling points: TranS Cis cis - iscmer. rofie polar natue de to more  136 Melting points : tranS CiS iSCneY has more close packkang trans because Stucthe Solubility (4 Solubility han the lower have Trans iserneS Cis -  134 which of the fellowing wil) not show geometri cal is omerism ? CH (a) Ct ct (D) Ans: A, 8). So| lcH CH CH3 Two Same Two Sane houps. houps. isenevs possisle fer Calclt the geometical 2Q, hexachloro Cyclo hexane 9 J,23, 4, S,6-  obser from Doy observe. wads To observer' c| cc c cl cl cl cl CI cl c cl cl cl are : They (8) s 8 cl  139 How many geometnal isoers are Passi bJe 39: follouwingq Copounds +he for dcalin Gi) q-Methy) De calin (i) 41-Methyl decalin. (i) Know that, Sol. we a (cis) Ctrans) a 44.0] decane TUPAC: Bicyclo DeCalin: trans dealtn. G) cis- dealin, isovners Ans : (cis dcalin) H trans de calin) H  calin; (i) 1- Methyl de isomers Ans: J4 cHg H cH3 CH3 cH3 q-Mehyl oecalin - (ii) fsovners cH3 H (or) cH3 (or) H 4-Q: The geometri cal isceYS in will e Ans: Sol hybridisaton 6 +6 = 6. C sp°d) (octahedra). They ahe, cl-cl (oppusite ) BY-Br Copposte) F-F (oppoSite) (i) cl-cl, 8r-Br (oPposite) (Gv) F-F, F-F, cl-c, Br-Br (adiacent) () (Br F (Br) B (Br