2.2.2-Cryptand

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2.2.2-Cryptand
Skeletal formula of 2.2.2-cryptand
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 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 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
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
 YesY (verify) (what is: YesY/N?)
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[edit]

  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.