Question

Question 7 5 points Save and Consider the chemical shift of carbons in aromatic systems. To estimate these chemical shifts when the aromatic ring is substituted with halogens can be tricky. Please find below Table 1 that allows you to calculate the chemical shifts. What is the chemicals of the meta carbon of Fluorobenzene and the chemicals of the para carbon of chlorobenvene 03 +0.9 CHERci (attachment) C2 F +35.1 -14.3 al +6.4 +0.2 Br -5.4 +3.4 -32.2 +9.9 Note "+" is to the left, "-" to the right CHO 8=128.5 ppm Based on the table, calculate

Answer 1

Chemical shift of meta carbon of fluorobenzene is 129.4 ppn

Chemical shift of para carbon of chlorobenzene is 126.5 ppm.