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2. (a) The v(CO) of isoelectronic series [Mn(CO).], [Cr(CO)] and [V(CO) are 2090 cm 2000cm¹ and 1860 cm', respectively. Why is this difference observed in the band positions? (b) Account for the number of M-N and M-Cl stretching bands in cis-[Pd(NH3)₂Cl₂] and trans-[Pd(NH3)₂C1₂] complexes. (c) Explain how terminal and bridging hydroxo complexes can be distinguished with the help of IR spectroscopy? (d) [Cr(OH)₂]³+ ions are pale blue-green but chromate (Cr₂O2) ion is an intense yellow in colour. Characterise the origins of the transition and explain.

2. (a) The v(CO) of isoelectronic series [Mn(CO).], [Cr(CO)] and [V(CO) are 2090 cm 2000cm¹ and 1860 cm', respectively. Why is this difference observed in the band positions? (b) Account for the number of M-N and M-Cl stretching bands in cis-[Pd(NH3)₂Cl₂] and trans-[Pd(NH3)₂C1₂] complexes. (c) Explain how terminal and bridging hydroxo complexes can be distinguished with the help of IR spectroscopy? (d) [Cr(OH)₂]³+ ions are pale blue-green but chromate (Cr₂O2) ion is an intense yellow in colour. Characterise the origins of the transition and explain.

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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2. (a) The v(CO) of isoelectronic series [Mn(CO).], [Cr(CO).] and [V(CO), are 2090 cm¹ 2000cm¹ and 1860 cm', respectively. Why is this difference observed in the band positions? (b) Account for the number of M-N and M-CI stretching bands in cis-[Pd(NH3)2Cl₂] and trans-[Pd(NH3)2Cl₂] complexes. (c) Explain how terminal and bridging hydroxo complexes can be distinguished with the help of IR spectroscopy? (d) [Cr(OH)₂]³+ ions are pale blue-green but chromate (Cr₂O2) ion is an intense yellow in colour. Characterise the origins of the transition and explain.
Transcribed Image Text:2. (a) The v(CO) of isoelectronic series [Mn(CO).], [Cr(CO).] and [V(CO), are 2090 cm¹ 2000cm¹ and 1860 cm', respectively. Why is this difference observed in the band positions? (b) Account for the number of M-N and M-CI stretching bands in cis-[Pd(NH3)2Cl₂] and trans-[Pd(NH3)2Cl₂] complexes. (c) Explain how terminal and bridging hydroxo complexes can be distinguished with the help of IR spectroscopy? (d) [Cr(OH)₂]³+ ions are pale blue-green but chromate (Cr₂O2) ion is an intense yellow in colour. Characterise the origins of the transition and explain.
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