-
nucleophiles than
their tetracoordinated analogues.
Advanced ab
initio calculations were
performed on
series of
tetracoordinated and
pentacoordinated species...
-
trivalent (classical)
carbenium ions from three-center
bound penta- or
tetracoordinated (nonclassical)
carbonium ions. Role of
carbocations in electrophilic...
- In chemistry, crystallography, and
materials science, the
coordination number, also
called ligancy, of a
central atom in a
molecule or
crystal is the number...
-
trivalent (classical)
carbenium ions from three-center
bound penta- or
tetracoordinated (nonclassical)
carbonium ions. Role of
carbocations in electrophilic...
-
trivalent (classical)
carbenium ions from three-center
bound penta- of
tetracoordinated (nonclassical)
carbonium ions. Role of
carbocations in electrophilic...
-
boron atom. The
anion has a
tetrahedral molecular geometry at the two
tetracoordinated boron atoms, and has a
trigonal planar molecular geometry at the two...
-
stabilized by
metal bonding in
bimetallic (or polymetallic) species.
Tetracoordinate platinum(II)
compounds tend to
adopt 16-electron
square planar geometries...
- 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 NiCl2ยท6H2O
gives yellow anhydrous NiCl2. Some
tetracoordinate nickel(II) complexes, e.g. bis(triphenylphosphine)nickel chloride,...
