21-Crown-7

21-Crown-7
Names
	IUPAC name 1,4,7,10,13,16,19-heptaoxacycloheneicosane
Identifiers
CAS Number	33089-36-0 ;
3D model (JSmol)	Interactive image;
ChemSpider	84104 ;
EC Number	251-373-3
PubChem CID	93160;
	InChI InChI=1S/C14H28O7/c1-2-16-5-6-18-9-10-20-13-14-21-12-11-19-8-7-17-4-3-15-1/h1-14H2 Key: XKEHLMZHBXCJGZ-UHFFFAOYSA-N ; InChI=1S/C14H28O7/c1-2-16-5-6-18-9-10-20-13-14-21-12-11-19-8-7-17-4-3-15-1/h1-14H2 Key: XKEHLMZHBXCJGZ-UHFFFAOYSA-N;
	SMILES O1CCOCCOCCOCCOCCOCCOCC1;
Properties
Chemical formula	C14H28O7
Molar mass	308.37 g·mol−1
Related compounds
Related compounds	Dibenzo-21-crown-7
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
	Infobox references

21-Crown-7 is an organic compound with the formula [C₂H₄O]₇ and the IUPAC name of 1,4,7,10,13,16,19-heptaoxacycloheneicosane. Like other crown ethers, 21-crown-7 functions as a ligand for some metal cations with a particular affinity for caesium cations.^[1] The point group of 21-crown-7 is S₇. The dipole moment of 21-crown-7 varies in different solvents and under different temperatures.

References

↑ Frensdorff, Hans K. (1 February 1971). "Stability constants of cyclic polyether complexes with univalent cations". Journal of the American Chemical Society. 93 (3): 600–606. doi:10.1021/ja00732a007.

External links

ChemicalBook

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.

[1] Frensdorff, Hans K. (1 February 1971). "Stability constants of cyclic polyether complexes with univalent cations". Journal of the American Chemical Society. 93 (3): 600–606. doi:10.1021/ja00732a007.