- In chemistry, crystallography, and
materials science, the
coordination number, also
called ligancy, of a
central atom in a
molecule or
crystal is the number...
- form
stable α-carbanions.
Sulfoximides (also
called sulfoximines) are
tetracoordinate sulfur–nitrogen compounds,
isoelectronic with sulfones, in
which one...
-
nucleophiles than
their tetracoordinated analogues.
Advanced ab
initio calculations were
performed on
series of
tetracoordinated and
pentacoordinated species...
-
trichloride is in its
melted state, it
exists as the
dimer Al2Cl6, with
tetracoordinate aluminium. This
change in
structure is
related to the
lower density...
-
stabilized by
metal bonding in
bimetallic (or polymetallic) species.
Tetracoordinate platinum(II)
compounds tend to
adopt 16-electron
square planar geometries...
- P-oxides are
extremely unstable,
rapidly adding nucleophiles to a
species tetracoordinate at phosphorus.
Strongly backbonding Lewis acids (e.g.
tungsten pentacarbonyl)...
- water: the
exceptions are the nitrate, perchlorate, and fluoride. The
tetracoordinate tetrahedral aqueous ion [Ag(H2O)4]+ is known, but the characteristic...
- 1.2): (a) 'R' and 'S', to
designate the
absolute configuration of
tetracoordinate (quadriligant)
chirality centers; "3.5:
Naming chiral centers- the...
- [Ni(H2O)6]2+.
Dehydration of NiCl2·6H2O
gives yellow anhydrous NiCl2. Some
tetracoordinate nickel(II) complexes, e.g. bis(triphenylphosphine)nickel chloride,...
- pair
usually ****ociated with phosphines.
Optimized Geometry HOMO LUMO
Tetracoordinate phosphetanes are by far the most
commonly observed geometry around...
