43. The The molecules below are: H CH 3 H A) structural isomers. B) enantiomers. (c) diastereomers. H H CH 3 CH 3 CH 3 D) identical. E) None of these

What term describes the structural relationship between (2R 3R,4S)-2,3,4-trichloroheptane and (2R 3R,4R)-2,3,4-trichloroheptane? O diastereomers O not isomers O conformers constitutional isomers O enantiomers

d) Molecular relationships; identify whether the compounds in each group are const. isomers, conformers, enantiomers, diastereomers, identical, meso or none of the above. ОН ОН H3C Br H3C LF H Br CH3 HO CI Br Br CI NH NH

129 Identify the relationship in each of the following pairs. Do the drawings represent consti- tutional isomers or stereoisomers, or are they just different ways of drawing the same compound? Ir they are stereoisomers, are they enantiomers or diastereomers? (Molecular models may prove useful in this problem.) CH) (a) C-CH,Br and c-CH,OH HO Br CH, H. Br H, (b) C-Br and CH, CH,CH, CH,CH, CH, Hc H C-CH,CH, (c) C-Br and CH,CH, Br CH, and Br CH,CH, CH,OH CH,OH (e) HOH ČHOH and но- ČH,OH H,C (r) and For Problem No. 7.29 (a) to (f), IDENTIFY the given pair of structures as described below and WRITE: EN if the pair represents ENANTIOMERS DI if the pair represents DIASTEREOMERS co if the pair represents CONSTITUTIONAL isomers ID if the two molecules represent IDENTICAL compounds

Please don't provide handwriting solution

4. Isomers and Stereocenters ( (a) Assign each set of molecules as constitutional isomers, conformational isomers, enantiomers, diastereomers, or identical. Please write the full name for the type. Molecules Type (b) H₂Ca HgC.. CH3 OCH₂ CH3 af OCH, SP H₂C**** H₂C H₂C NGOCH, H.C_OCKS OCH₂ CH₂ H₁C HC H*** CI H H CI Br H3C CH₂ Br (d) E) (0) For each of the following molecules, write the number of stereocenters and circle the center of any stereocenters. (i) (ii) H₂C (онт (eg 5) (b) -CH3 Isegna CH3 on mots eno H₂C CH3

For the pair of structures indicate what type of isomeric relationship they have at room temperature. The possibilities are structural isomers, conformational isomers, enantiomers, diastereomers, and meso compound. O |||||OH CH3 "1110 ...IOH CH3 AV A

What is the relationship between these structures? H3CH2C OH CH3 HỌC HỒ CH(CH3)2 (A) conformers (C) enantiomers HO CH(CH3)2 CH2CH3 H3C OH CH3 (B) diastereomers (D) identical

4. For each pair Stute whetter th two are DJ HHe Same moleclle, b) defferent compounds that ave not isomers, C) constitutonal isomers dl diastereomers, or e enantiomers, SH a) Hs Octs Br CH3 iBr b)

what is the line structure?' a) CH3CH2CH2OH b) CH2CHCH2CH3 c) (CH3)2CHCH2CH2NH2