What Is the Splitting Pattern in the Proton-Coupled $13 \mathrm { C }$

question 135

Multiple Choice

What is the splitting pattern in the proton-coupled $13 \mathrm { C }$ NMR spectrum of the following compound?

• A) \(\mathrm { A } , \mathrm { B } , \mathrm { G } = \text { quartet; } \mathrm { C } , \mathrm { D } , \mathrm { E } , \mathrm { F } = \text { doublet }\)
• B) \(\text { A, B, G = triplet; C, D, E, F = singlet }\)
• C) \(\mathrm { A } , \mathrm { G } = \text { quintet; } \mathrm { B } = \text { quartet; } \mathrm { D } , \mathrm { E } = \text { triplet; } \mathrm { C } , \mathrm { F } = \text { doublet }\)
• D) \(\mathrm { A } , \mathrm { G } = \text { triplet; } \mathrm { B } = \text { doublet } ; \mathrm { D } , \mathrm { E } = \text { singlet }\)
• E) \(\mathrm { A } , \mathrm { G } = \text { quartet; } \mathrm { B } = \text { triplet; } \mathrm { D } , \mathrm { E } = \text { doublet } ; \mathrm { C } , \mathrm { F } = \text { singlet }\)

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Definitions:

Least-squares Regression

A statistical method used to determine the line of best fit by minimizing the sum of the squares of the vertical deviations from each data point to the line.

Slope

In mathematics, the slope is a measure of the steepness or the inclination of a line, defined as the ratio of the rise over the run between two points on the line.

Intercept

In statistics and mathematics, the point on a graph where a line crosses the y-axis, often used in the context of linear regression.

Errors

Mistakes or inaccuracies that can occur in data entry, calculation, accounting, or any process, leading to discrepancies and potential issues.