DM - bonding and structure Flashcards
1
Q
coordinations number?
A
the number of coordinate (dative) bonds the the ligand forms with the central metal ion
2
Q
shapes and bond angles of complex ions - SIX
A
octahedral shape
all bond angles are 90degrees
3
Q
shapes and bond angles of complex ions - FOUR
A
tetrahedral shape
- bond angles are 109.5degrees
but occasionally
square planar
- bonds angles are 90degrees
- happens in a few complexes eg. cisplatin (Pt , 2NH3, 2Cl-)