Concept explainers
Interpretation:
The IR spectra of salts of
Concept Introduction:
Raman and infrared (IR) spectroscopies are branches of vibrational spectroscopy.
For a mode of vibration to be infrared (IR) active, it must give rise to a change in the molecular electric dipole moment.
For a mode of vibration to be Raman active, it must give rise to a change in the polarizability of the molecule.
Vibrational spectroscopy is concerned with the observation and determination of number of the degrees of vibrational freedom.
The degrees of vibrational freedom depends on the number of atoms in molecule and shape of the molecule.
The number and nature of the symmetry elements of a given molecule are conveniently represented by its point groups and give rise to labels such as
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Inorganic Chemistry
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- Chemistry Draw the new Molecular orbital energy diagram for [Co(NH3)5(H2O)]3+, indicating the symmetry designations for the orbitals. You have to go through the reducible representation processarrow_forwardThe CO stretching vibration frequencies measured in the IR spectra taken in hydrocarbon solutions of co-electron [Mn(CO)6], [Mn(CO)6]- and [Mn(CO)6]+ complexes are 1981, 1859 and 2101 cm-1, respectively. According to these values, the Explain C≡O bond lengths and Mn-C bond lengthsarrow_forwardCalculate the lowest energy Δo for a solution of [Cr(en)2F2]+ that has absorption bands at 17500 cm-1, 23000 cm-1 and 27500 cm-1. Make sure you show all work.arrow_forward
- Apply IR and 13CNMR to identify isomers of [PtCl(CO)(PMe3)(C2H4)]+arrow_forward[Co(NH3)5NO2]2+ has two isomers. Draw their structures and show how they can be distinguished by using IR spectroscopy.arrow_forwardThe electronic absorption spectrum of an acidic solution of [Ti(H,O),JP* exhibits two well-separated bands at 430 and 650 nm, respectively, assignable to "d-d transition. But the oxidized form [Ti(H,O),}³" shows only one absorption at 490 nm with a shoulder around 580 nm. Explain the observation. A. [Ti(H;O),J³* has more d electrons than [Ti(H;O).J**. B. [Ti(H,O),]³" is a strong oxidizing agent. C. [Ti(H,O),}³" shows stronger Jahn-Teller effect. D. [Ti(H,O)]" shows stronger Jahn-Teller effect. E. H,0 is a weak-field ligand.arrow_forward
- [Ni(NH3)4CI2] does not exhibit Jahn- Teller distortion. Explain Answer:arrow_forwardThe CO stretching vibration frequencies measured in the IR spectra taken in hydrocarbon solutions of co-electron [Mn(CO)6], [Mn(CO)6]- and [Mn(CO)6]+ complexes are 1981, 1859 and 2101 cm-1, respectively. According to these values, compare the C≡O bond lengths in the complexes by explaining the Mn-C bond lengths.arrow_forwardWhat are the planes of symmetry and proper rotation of [Co(en)2Cl2]+?arrow_forward
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