Abstract
Abstract The crystal structure of(-)β-(trichloromethyl)-β-propiolactone at room temperature is reported, as is the 35Cl NQR spectrum in the range 77 ≦ T/K ≦ 323.5. The compound crystallizes with the space group D2 4-212121, Z = 8, a = 2416.0 (10) pm, b = 975.6 (4) pm, c = 595.0 (2) pm. The intramolecular distances and angles of the two crystallographically independent (-) molecules in the unit cell are equal within the limits of error. The spread of the 35Cl NQR spectrum is within 600 kHz, not changing in the temperature range covered. The crystal structure and 35Cl NQR spectrum are discussed. The results found for the (-) compound are compared with the corresponding ones reported for the (±) compound [1], and the influence of the different intramolecular interactions in the two solid states of the chemically identical compounds on the NQR spectrum is discussed.
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