X‐ray crystal structure analysis of parthenin–A sesquiterpene lactone | Zendy

Gupta Vivek K. | Zendy; Goswami K. N. | Zendy; Bhutani K. K. | Zendy

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X‐ray crystal structure analysis of parthenin–A sesquiterpene lactone

Author(s) -

Gupta Vivek K.,

Goswami K. N.,

Bhutani K. K.

Publication year - 1994

Publication title -

crystal research and technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.377

H-Index - 64

eISSN - 1521-4079

pISSN - 0232-1300

DOI - 10.1002/crat.2170290317

Subject(s) - tetragonal crystal system , crystal structure , sesquiterpene lactone , ring (chemistry) , hydrogen bond , lactone , molecule , crystallography , chemistry , sesquiterpene , stereochemistry , crystal (programming language) , envelope (radar) , cyclohexane conformation , organic chemistry , telecommunications , radar , computer science , programming language

The crystal structure of parthenin has been determined by X‐ray structure analysis. The compound crystallizes in the tetragonal space group P4 1 with cell parameters a = b = 6.8677(2), c = 28.6851(4) Å. The structure has been solved by direct methods and refined to R = 0.039. The seven‐membered ring assumes a chair conformation while the two five‐membered rings have envelope shapes. The A/B and B/C junctions are trans. Molecules are held together by hydrogen bonds.

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