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April 28, 2026Zeitschrift für Kristallographie - New Crystal StructuresOpen Access

Crystal structure of 4-oxo-4H-benzopyran-2-carboxylic acid

Dong‐E Wang Yucai Zhang

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Key Points

This research aims to elucidate the crystal structure of 4-oxo-4H-benzopyran-2-carboxylic acid.
Determined structure using X-ray diffraction techniques.
Characterized the compound in an orthorhombic crystal system with space group Pna21.
Conducted analysis at a temperature of 100 K.
Unit cell dimensions measured as a = 14.2519(12) Å, b = 4.8160(4) Å, c = 11.4135(10) Å.
Volume of the unit cell is 783.39(12) Å³ with Z = 4.
R factor and weighted R factor were reported as Rgt(F) = 0.0302 and wRref(F²) = 0.0824, respectively.

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Implication

Crystal structure reveals the arrangement of 4-oxo-4H-benzopyran-2-carboxylic acid, indicating unique properties.

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Cite This Study

Wang et al. (2026) studied this question.

synapsesocial.com/papers/69f988be15588823dae17a80 https://doi.org/10.1515/ncrs-2026-0079

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