2.2.2-Cryptand

2.2.2-Cryptand
2.2.2-Cryptand
Systematic name
4,7,13,16,21,24-Hexaoxa-1,10-diazabicyclo[8.8.8]hexacosane[1]
Other names
Cryptating agent 222[citation needed]
Identifiers
Abbreviations Crypt-222
CAS number 23978-09-8 YesY
PubChem 72801
ChemSpider 65637 YesY
EC number 245-962-4
MeSH Cryptating+agent+222
RTECS number MP4750000
Beilstein Reference 620282
Jmol-3D images Image 1
Properties
Molecular formula C18N2H36O6
Molar mass 376.4882 g mol-1
Exact mass 376.257336894 g mol-1
Melting point

68-71 °C, 341-344 K, 154-160 °F
Hazards
GHS pictograms The exclamation-mark pictogram in the Globally Harmonized System of Classification and Labelling of Chemicals (GHS)
GHS signal word WARNING
GHS hazard statements H315, H319, H335
GHS precautionary statements P261, P305+351+338
EU classification Irritant Xi
R-phrases R36/37/38
S-phrases S26, S36
 YesY (verify) (what is: YesY/N?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references
Structure of a [2.2.2]cryptand encapsulating a potassium cation (purple). At crystalline state, obtained with an X-ray diffraction.[2]

2,2,2-Cryptand is one of the most important members of the cryptand family of chelating agents. In Nomenclature of Inorganic Chemistry (2005), IUPAC recommends the abbreviation "crypt-222".

References

  1. ^ "cryptating agent 222 - PubChem Public Chemical Database". The PubChem Project. USA: National Center for Biotechnology Information. Descriptors Computed from Structure. http://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?cid=72801. 
  2. ^ Alberto, R.; Ortner, K.; Wheatley, N.; Schibli, R.; Schubiger, A. P. (2001). "Synthesis and properties of boranocarbonate: a convenient in situ CO source for the aqueous preparation of [99mTc(OH2)3(CO)3]+". J. Am. Chem. Soc. 121 (13): 3135–3136. doi:10.1021/ja003932b. 
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