Structures of Fe5(CO)15C and Os5(CO)16respectively area)square pyramid...
Structures of Fe5(CO)15C and Os5(CO)16 respectively are square pyramidal and trigonal bipyramidal.
Structure of Fe5(CO)15C:
- Fe5(CO)15C contains 5 Fe atoms, 15 CO ligands, and 1 C atom.
- The central C atom is bonded to one Fe atom and has a lone pair of electrons.
- The Fe atoms are arranged in a square pyramid around the central C atom.
- Four of the Fe atoms are bonded to 4 CO ligands and the remaining Fe atom is bonded to 3 CO ligands and the central C atom.
Structure of Os5(CO)16:
- Os5(CO)16 contains 5 Os atoms and 16 CO ligands.
- The Os atoms are arranged in a trigonal bipyramidal shape.
- Three of the Os atoms are in the equatorial plane and bonded to 4 CO ligands each.
- The remaining 2 Os atoms are in the axial positions and bonded to 3 CO ligands each.
Therefore, the correct answer is option A.
Structures of Fe5(CO)15C and Os5(CO)16respectively area)square pyramid...
Fe5(CO)15C is Nido square pyramidal geometry
Os5(CO)16 is closo trigonal bipyramidal geometry.
calculation:
Fe5(CO)15C Total electron count pair is 37
X + 5(6) = 37
X = 7. so. n+5=7 then n=2 Nido
Nido 5 co-ordination is Nido square pyramidal.
Os5(CO)16 Total electron count pair is 36
X + 5(6) = 36, X = 6 so n+5 = 6 then n=1,
closo 5 co-ordination is closo trigonal bipyramidal.