Transition Metals Flashcards
(51 cards)
In trans octahedral complexes how are the Y ligands arranged in [MX_4Y_2]
opposite
In cis octahedral complexes how are the Y ligands arranged in [MX_4Y_2]
adjacent
In mer octahedral complexes how are the Y ligands arranged in [MX_3Y_3]
in the same plane
In fac octahedral complexes how are the Y ligands arranged in [MX_3Y_3]
on the same face
When do optical isomers occur in octahedral complexes
when 2>= bidentate ligands
Λ - anti or clockwise
anticlockwise/left rotation
Δ - anti or clockwise
clockwise/right rotation
when do optical isomers occur in square planar/tetrahedral complexes
when there are 4 unique ligands
what is the interconversion between trigonal bipyramidal and square pyramidal called
berry psuedorotation
what about the ligands changes during berry psuedo rotation
axial ligands –> equitorial ligands
what is polarisability
how susceptable a metal/ligand is to their charge being shifted around their e- shell
Hard centres polarisability magnitude
small
Soft centres polarisability magnitude
large
Hard centres bonding
ionic
Soft centres bonding
covalent
hard metal + hard ligand =
strong ionic bond
soft metal + soft ligand
strong covalent bond
which orbitals point towards ligands in octahedral complexes
dz^2/dx^2-y^2
which orbitals point between ligands in octahedral complexes
dxy/dyz/dxz
which ligands does e_g refer to
dz^2/dx^2-y^2
which ligands does t_2g refer to
dxy/dyz/dxz
when is john teller distortion present
when degenerate orbitals have an unequal distribution of electrons e.g low spin d^4
what effect does tetragonal have on the orbitals
dx2-y2 increase E
dz2 decrease E
dxy increase E
dxz/dyz decrease E
what is the orbital arrangement in square planar molecules
dx2-y2
dxy
dz^2
dxz/dyz
(decreasing energy)
