1.HOW CAN WE CALCULATE MICRO STATES IN COORDINATION COMPOUND?
2.WHICH COMPLEX ABSORB LIGHT IN LONGER WAVELENGTH?
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Expert's answer
2013-06-24T10:31:21-0400
1. Microstates – the electronic states that are possible for a given electronic configuration. - no two electrons may have the same set of quantum numbers (Pauli exclusion principle) - only unique microstates may be included Number of microstates in a free-ion term is equal to (2L + 1)(2S +1).
2. Absorbing at longest wavelength means having the smallest energy difference in the orbitals.
The colors of the compounds are related to the magnitude of ? (the d-orbital splitting value). The weak field compounds will have the smallest, so the light absorbed will be longest.
Strong-field ligands absorb higher energy light (violet light, for example, with ~400 nm), while weak-field ligands absorb lower energy light (red light, for example, with ~650 nm).
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