What is meant by coupling constant?
Answers were Sorted based on User's Feedback
Answer / satheesh g
Coupling constant is denoted by J and the unit is Hz. If we
see the doublet in NMR spectrum, we assume that one peak is
in 2.128 ppm and an another peak is in 2.156 ppm.
First convert the ppm into Hz by multiply the ppm into
fieldstrength in MHz. If Our NMR machine is 300 MHz, the
peaks were at 638.4 Hz and 646.8 Hz. So the coupling
constant is the difference between the two values
i.e.,646.8 - 638.4 gives 8.4 Hz.
| Is This Answer Correct ? | 14 Yes | 0 No |
Answer / yogesh
coupling constant is denoted by J and measured in Hz it is
the difference between the tow distinguishing lines of
doublet
| Is This Answer Correct ? | 3 Yes | 1 No |
Answer / rupashree
distance between peaks in a multiplet i.e difference in frequency between two peaks. denoted by J.measured in Hz.
| Is This Answer Correct ? | 2 Yes | 0 No |
Answer / chandu.anil kumar
The distance between the two adjacent peaks in a multiplet
is usually constant and is called the coupling constant.
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / madhusudhan
Distance between two lines in H'NMR spectroscopy
| Is This Answer Correct ? | 0 Yes | 2 No |
How to prepare Paracetmol?
what is meant by Assymetric Dihydroxylation .How to get trans diol from alkene?
Why some type of assays having limit 98% to102%? (if any compound having assay limit 100)
3 Answers Asia Pharma, Reddy Labs,
how to prepare the 0.001M tio2
How many different types of carbon signals would be observed by 13C-NMR?
How to find peaks in ftir chromatography
for the decomposition of BR2 what soltution do you used
chlorination of methane is possible and a mixture of products are obtained. Is flourination and Bromination of methane is possible?
Explain the differences between organic and inorganic chemistry?
Explain wurtz process & wolf-kishner reduction?
Which are the longest living cells in the body?
Three products in gaseous form that is obtained in fractional distillation of petroleum.