ISSN:
1573-1111
Keywords:
18-Crown-6
;
nitromethane
;
crystal structure
;
CH...O hydrogen bonding
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract The title compound was crystallized from hot nitromethane. (18-crown-6) · 2CH3NO2 crystallizes in the monoclinic space groupP21/n witha=9.066(3),b=8.284(3),c=14.015(7) Å, β=101.83(5)o andD calc=1.25 g cm−3 forZ=2. Least-squares refinement using 890 independent observed reflections led to a final conventionalR value of 0.084. The hydrogen atoms were located but not refined. The crown ether resides about a crystallographic center of invertion. There are two nitromethane molecules (one centered above and one below the crown ether) weakly interacting with the crown oxygen atoms via the methyl hydrogens stabilizing aD 3d crown conformation.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00662084
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