2.2.2-Cryptand

2.2.2-Cryptand
Names
Systematic IUPAC name
4,7,13,16,21,24-Hexaoxa-1,10-diazabicyclo[8.8.8]hexacosane[1]
Other names
Cryptating agent 222
Identifiers
23978-09-8 YesY
3D model (Jmol) Interactive image
Abbreviations Crypt-222
620282
ChemSpider 65637 YesY
ECHA InfoCard 100.041.770
EC Number 245-962-4
MeSH Cryptating+agent+222
PubChem 72801
RTECS number MP4750000
Properties
C
18
N
2
H
36
O
6
Molar mass 376.4882 g mol−1
Melting point 68 to 71 °C (154 to 160 °F; 341 to 344 K)
Hazards
GHS pictograms
GHS signal word WARNING
H315, H319, H335
P261, P305+351+338
Xi
R-phrases R36/37/38
S-phrases S26, S36
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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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.
  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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