Crystal structure of 1 `-ethylspirochroman-4,4 `-imidazolidine]-2 `,5 `-dione: a hydantoine derivative

Benaka Prasad, S. B. and Naveen, S. and Madaiah, M. and Lokanath, N. K. and Warad, I. and Abdoh, M. (2015) Crystal structure of 1 `-ethylspirochroman-4,4 `-imidazolidine]-2 `,5 `-dione: a hydantoine derivative. Acta Crystallographica Section E-Crystallographi Communications, 71 (10). O705-U171. ISSN 2056-9890

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Abstract

The title compound, C13H13N2O3, a hydantoin derivative, crystallized with two molecules (A and B) in an asymmetric unit. In molecule A, the imidazolidine ring is twisted about the C -N bond involving the spiro C atom, while in molecule B this ring is flat (r.m.s. deviation = 0.010 angstrom). The pyran rings in both molecules have distorted half-chair conformations. The mean plane of the imidazolidine ring is inclined to the aromatic ring of the chroman unit by 79.71 (11) in molecule A and 82.83 (12) in molecule B. In the crystal, pairs of N-H center dot center dot center dot O hydrogen bonds link the individual molecules to form A-A and B-B inversion dimers. The dimers are linked via N-H center dot center dot center dot O and C-H center dot center dot center dot O hydrogen bonds, forming sheets lying parallel to the be plane, viz. (011). Within the sheets, the A and B molecules are linked by C-H center dot center dot center dot pi interactions.

Item Type:	Article
Uncontrolled Keywords:	crystal structure; hydantoin derivatives; imidazolidine; chroman; spiro; hydrogen bonding; C-H center dot center dot center dot pi-interactions
Subjects:	C Chemical Science > Chemistry D Physical Science > Physics
Divisions:	Department of > Chemistry
Depositing User:	Users 19 not found.
Date Deposited:	30 May 2019 09:27
Last Modified:	15 Jul 2022 09:46
URI:	http://eprints.uni-mysore.ac.in/id/eprint/682

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