Cannabaceae

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9-Crown-3
Names
Preferred IUPAC name
1,4,7-Trioxonane
Other names
1,4,7-Trioxacyclononane; Ethylene oxide trimer
Identifiers
3D model (JSmol)
1421638
ChEBI
ChemSpider
  • InChI=1S/C6H12O3/c1-2-8-5-6-9-4-3-7-1/h1-6H2
    Key: RCIDBLLMZGGECJ-UHFFFAOYSA-N
  • C1COCCOCCO1
Properties
C6H12O3
Molar mass 132.159 g·mol−1
Appearance colorless liquid
Melting point 0 °C (32 °F; 273 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

9-Crown-3, also called 1,4,7-trioxonane or 1,4,7-trioxacyclononane is a crown ether with the formula (C2H4O)3. A colorless liquid, it is obtained in low yield by the acid-catalyzed oligomerization of ethylene oxide.[1]

In contrast to larger crown ethers (12-crown-4, and 18-crown-6), 9-crown-3 has elicited very little interest, except from theorists.[2][3]

See also

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References

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  1. ^ Dale, Johannes; Borgen, Gerd; Daasvatn, Kari; Liaaen-Jensen, Synnøve; Enzell, Curt R.; Mannervik, Bengt (1974). "The Oligomerization of Ethylene Oxide to Macrocyclic Ethers, Including 1,4,7-Trioxacyclononane". Acta Chemica Scandinavica. 28b: 378–379. doi:10.3891/acta.chem.scand.28b-0378.
  2. ^ Anderson, Wayne P.; Behm, Philip; Glennon, Timothy M.; Zerner, Michael C. (1997-03-01). "Quantum Mechanics and Molecular Mechanics Studies of the Low-Energy Conformations of 9-Crown-3". The Journal of Physical Chemistry A. 101 (10): 1920–1926. Bibcode:1997JPCA..101.1920A. doi:10.1021/jp962172h. ISSN 1089-5639.
  3. ^ Jagannadh, B.; Sarma, Jagarlapudi A. R. P. (1999-12-01). "Searching the Conformational Space of Cyclic Molecules: A Molecular Mechanics and Density Functional Theory Study of 9-Crown-3". The Journal of Physical Chemistry A. 103 (50): 10993–10997. Bibcode:1999JPCA..10310993J. doi:10.1021/jp991201w. ISSN 1089-5639.
source: Https://en.wikipedia.org/wiki/9-crown-3

One thought on “Cannabaceae”

  1. Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
    View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction

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