浓硫酸中1H核磁共振光谱内部标准。

IF 3.6 3区化学 Q2 CHEMISTRY, ANALYTICAL

Analyst Pub Date : 2025-06-20 DOI:10.1039/d5an00161g

Desmond B Ofosu,Robert Z Mendoza,Paul J Bracher

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引用次数: 0

摘要

本文推荐使用二甲基砜和1,4-二硝基苯作为浓硫酸中1H NMR谱的内标。这些化合物是从8个候选化合物中选出的，测试了热稳定性、抗放气性和H/D交换。通过测量模型脱羧反应的速率常数，证明了内标的有效性。

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Internal standards for 1H NMR spectroscopy in concentrated sulfuric acid.

This paper recommends the use of dimethyl sulfone and 1,4-dinitrobenzene as internal standards for 1H NMR spectroscopy in concentrated sulfuric acid. These compounds were selected from 8 candidates tested for thermal stability and resistance to outgassing and H/D exchange. The effectiveness of the internal standards was demonstrated by measuring the rate constant of a model decarboxylation reaction.

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