JEE Advanced2018ChemistryCoordination CompoundsActual
The correct option(s) regarding the complex C o e n N H 3 3 H 2 O 3 + :- (en = H 2 N C H 2 C H 2 N H 2 ) is (are)
Options
- AIt has two geometrical isomers
- BIt will have three geometrical isomers if bidentate 'en' is replaced by two cyanide ligands
- CIt is paramagnetic
- DIt absorbs light at longer wavelength as compared to C o e n N H 3 4 3 +
Correct answer
A. It has two geometrical isomers
Step-by-step solution
( i ) C o e n N H 3 3 H 2 O + 3 complex is type of [ M A A b 3 c ] have two G.I. ( B ) If (en) is replaced by two cyanide ligand, complex will be type of [ M a 3 b 2 c ] and have 3 G.I. ( i i i ) C o e n N H 3 3 H 2 O 3 + h a v e d 6 c o n f i g u r a t i o n ( t 62 g 6 ) on central metal with SFL therefore it is dimagnetic in nature. ( i v ) Complex C o e n N H 3 3 H 2 O 3 + have lesser C F S E ( ∆ O ) value than C o e n N H 3 4 3 + therefore complex C o e n N H 3 3 H 2 O + absorbs longer wavelength for d-d transi