Question

H: CH100 d, 3H O wn t, 3H s, 1H Hz ppm 838.38 9.362 596.75 6.664 589.69 6.585 582.75 6.507 575.69 6.428 215.75 2.410 208.13 2.324 200.75 2.242 193.19 2.158 182.00 2.033 175.00 1.954 94.06 1.051 86.75 0.969 79.00 0.883 524 59 176 181 64 71 235 270 131 1000 966 487 979 359 9, 1H 4,2H 11 10 9 8 7 6 5 4 3 ppm

Answer 1

Mol.Formula -C6H100 Site of unsaturation(2C+2-H) 12 - (2 X 6+2-10) / 2 - 2 1.3 H shows Triplate at 1.00 dppm indicate CH3 group attached to CH2 group 2.2 H shows Quartate at -2.2 dppm indicate CH2 group attached to CH3 group 3.3 H shows Doublet at - 2.0 dppm indicate CH3 group attached to CH Group 4.1 H shows Quartate at - 6.5 dppm indicate CH group attached to CH3 group 5.1 H shows singlet at - 9.3 dppm indicate CHO group attached to no Negihbouring Hydrogen. The structure from above 1HNMR data shown below H H DATA of CMR A.Carbon shows 12.99 dppm belongs to CH3 carbon B.Carbon shows 14.51 dppm belongs to CH2 carbon C.Carbon shows 16.96 dppm belongs to CH3 carbon D.Carbon shows 146.38 dppm belongs to C-C carbon E.Carbon shows 149.42 dppm belongs to C-C carbon F.Carbon shows 194.84 dppm belongs to Aldehydic carbon The structure from above 1HNMR data shown below H AED y c DATA from IR C-O streching frequency of aldehyde at 1710 cm- C-H streching frequency of Alkane at 2850-3000cm1 0 de at 170 cm a H The structure from above 1HNMR, CMR and IR shown below