Here What I got,
Triplet has center pick chemical shift 
Adjacent picks are both same chemical shift 
Spectrometer frequency 
Coupling Constant (J) 
Difference between the
Centre pick and any adjacent pick * MHz

hence coupling constant is.
귤 organic-2 □ kelin-Bing Organic chemistry (2e)-De bb-Bing āorgo 333 HW1(1).pdf orgo 333 HW1(1).pdf 1+ ×...