Advertisements
Advertisements
Question
What is ‘effective atomic number’ (EAN)?
Solution
It is total number of electrons around the central metal ion present in a complex and calculated as the sum of electrons on the metal ion and the number of electrons donated by ligands. It can be calculated using formula,
EAN =Z-X+Y
where Z = Atomic number of metal.
X = Number of electrons lost during the formation of metal ion from its atom.
Y = Number of electrons donated by the ligands.
APPEARS IN
RELATED QUESTIONS
Calculate the effective atomic number of the central metal atom in the following compounds:
K4Fe(CN)6 Fe(Z=26)
Effective atomic number rule is used to find _______.
(A) geometry of complex
(B) stability of complex
(C) number of isomers of complex
(D) number of possible ligands around metal ion in complex
Calculate EAN of cobalt (Z=27) in [CO(NH3)6]+3 and of zinc (Z=30) in [Zn(NH3)4]SO4.
Calculate the effective atomic number of the central metal atom in the following compounds:
Cr(CO)6 Cr(Z=24)
What is the action of lithium aluminum hydride in the presence of ether on the following compounds?
a. Nitroethane
b. 2-Methyl-1-nitropropane
