- the
amine nitrogen caps. Many
cryptands are
commercially available under the
tradename Kryptofix. All-amine
cryptands exhibit particularly high affinity...
- 2.2]
Cryptand is the
organic compound with the
formula N(CH2CH2OCH2CH2OCH2CH2)3N. This
bicyclic molecule is the most
studied member of the
cryptand family...
-
ether complexes of
metal cations (and the
corresponding complexes of
Cryptands) are not
considered to be
inclusion complexes since the
guest is bound...
-
electrons as anions;
cryptands permit the
isolation of
these complexes as
crystalline solids.
Sodium forms complexes with
crown ethers,
cryptands and
other ligands...
-
together with
Donald Cram and
Charles Pedersen in 1987 for his
synthesis of
cryptands. Lehn was an
early innovator in the
field of
supramolecular chemistry...
- metal. Instead, it is made in
ammonia solution using ion
exchange and
cryptands. The
compound is
unstable at room
temperature and
decomposes at -10 °C...
- Lehn
discovered a
class of
molecules similar to
crown ethers,
called cryptands.
After that,
Donald J. Cram
synthesized many
variations to
crown ethers...
- Li+, 15-crown-5 for Na+, 18-crown-6 for K+, and 21-crown-7 for Rb+) and
cryptands due to
electrostatic attraction. The
alkali metals dissolve slowly in...
-
toxicity ****ociated with
crown ethers. Aza-crown
ether Thia-crown
ether Cryptand Metallacrown van der Ham, Alex; Hansen, Thomas; Lodder, Gerrit; Codée,...
-
thought to be
impossible to
obtain in pure form. However, with the help of
cryptands and methylamine, pure
sodium ozonide may be
obtained as red
crystals isostructural...
