Organic Papers: Naphthalene-2,6-dicarboxylic acid–1-methylpyrrolidin-2-one (1/2)
2011
Naphthalene-2,6-dicarboxylic acid and 1-methylpyrrolidin-2-one Crystallization
publication
Evidence: moderate
Author Information
Author(s): Wu Bianhua, Peng Ge, Cheng Youwei, Li Xi, Liu Jiyong
Primary Institution: Zhejiang University
Hypothesis
The study investigates the crystallization of naphthalene-2,6-dicarboxylic acid (NDA) with 1-methylpyrrolidin-2-one (NMP) to purify NDA.
Conclusion
The crystallization technique developed can potentially improve the purification process of NDA.
Supporting Evidence
- The asymmetric unit contains one half-molecule of NDA and one molecule of NMP.
- The crystallization technique is referred to as adductive crystallization.
- The NDA and NMP molecules are linked by strong hydrogen bonds.
Takeaway
The researchers mixed two chemicals to create crystals that could help clean up a substance used in making plastics.
Methodology
The title compound was obtained by mixing NDA with NMP and freezing the mixture for 72 hours.
Limitations
The purification process of NDA is still challenging despite the proposed method.
Digital Object Identifier (DOI)
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