Organic Structures Shapes and Isomerism Part 2
Organic Structures Shapes and Isomerism Part 2Kathy CarriganVersion 42-0185-00-01Lab Report AssistantThisdocumentisnotmeanttobeasubstitute foraformallaboratoryreport.TheLabReport Assistantissimplyasummaryoftheexperimentsquestions, diagramsifneeded,anddatatables thatshouldbeaddressedinaformallabreport.Theintentistofacilitatestudentswriting oflab reports by providing this informationin an editable filewhich can be sent to an instructor.QuestionsPart I Section1A. Wouldthestructuresyouhaveproducedinstep1beconsideredisomersofoneanother? Explain thebasis foryouranswer.B. Whatarethebond angles and molecular geometryaroundthecarbonatoms?Part I Section2A. Is this possible with thedouble bond? Describewhatyousee.B. Whatis thebond angle and molecular geometryaroundthe2middle carbonatoms?Part I Section3A. Whatarethebond angles and molecular geometryaroundthedouble bonded carbons?B. Canyourcis-2-butenemodelbeconvertedintothetrans-2-butenemodelwithoutbreaking bonds?C. The cis- and trans-2-butenesarecalledgeometricisomers.Whyaretheygiventhis name?D. Definethetermstructuralisomer(seeOrganicStructuresPart1)andexplainhowitdiffersfroma geometricisomer.Part I Challenge Questions(required)Indicate whethereachof the following compound pairs are geometric isomers, structural isomers, or not isomers atall. Writethenamesforthecompoundsunder each formula.NamesAre these structures isomers? If so what type?CH3CH3CHCH3CH3CH2 CH2CH3NamesAre these structures isomers? If so what type?Cl Cl ClCH3 CHClCH2andCH3 CHCH2NamesAre these structures isomers? If so what type?PartII:AromaticHydrocarbons and ResonanceA. Whatis thegeometryof eachof thecarbonsin benzene?B. Draw the structural formula for methylbenzene. (Note: draw the structure using the drawing programandpasteitinhere.Wedonotwant you toscaninthisasapdffile.If youareunable to draw the structure skip it and answer the rest of the question.)Part III: AlkynesA. Constructa model of 1-propyneand drawits structuralformula.Part IV: FunctionalGroupsPart IV Section1A. Constructamodel,usingtheredatomwithtwoprongsforoxygen,thendrawthestructural formulafor1-propanol,C3H7OH. (Thecommonnameispropanol,orpropylalcohol)Whyis oxygenrepresentedbythebentstructure?B. Constructamodel,thendrawthestructuralformulafor2-propanol,C3H7OH.(Thecommon name is isopropanol, or isopropyl alcohol).Part IV Section2A. Construct a model, then draw the structural formula for dimethyl ether, C2H6O.B. Whatrelationshipexistsbetweenethanol,C2H6O,anddimethylether? Youmayneedtodraw/constructa model of ethanoltoseethis.
