Q1) Choose the right answer in the next questions: 1- The compound with 3 electronic transitions in the UV-Visible spectrum a) [Cr(acaac)] b) [Cu(phthalocyanine)] c) [Co(NH₂)Cl]Ch₂ d) [Co(en)]ls 2- In circular dichroism, CD, a plot is made between: a) n-no and A b) E-Eo and A c) and A d) n and A 3- If two optically active compounds have the same Cotton effect: a) they have the same absolute configuration. b) they have different absolute configurations. c) they are enantiomers. d) they are diasteriomers. 4- Which of the following compounds has optical activity? a) [Nicl b) Ni(NH₂)₂Cl₂ c) Ni(en), d) [Ni(NH₂)Cl₂] 5-Determine the ground state for the ion Ni in octahedral fields. a. A₂ b. T c. A d. Ta 6- The main selection rule in IR spectroscopy: a. spin multiplicity must stay the same b.gg transitions are not allowed c. the vibrations must change the bond angle d. there must be a change in the dipole moment 7- The complex with a strong IR peak at around 1600 cm¹¹: a. trans-[Cr(en),(H₂O), Cl, b. [Cr(NO₂) c. [Co(en)s]" d. [Cr(acac);] 02 Explain how IR spectroscopy is used to indicate that complexation of a ligand with a metal has occurred.
Q1) Choose the right answer in the next questions: 1- The compound with 3 electronic transitions in the UV-Visible spectrum a) [Cr(acaac)] b) [Cu(phthalocyanine)] c) [Co(NH₂)Cl]Ch₂ d) [Co(en)]ls 2- In circular dichroism, CD, a plot is made between: a) n-no and A b) E-Eo and A c) and A d) n and A 3- If two optically active compounds have the same Cotton effect: a) they have the same absolute configuration. b) they have different absolute configurations. c) they are enantiomers. d) they are diasteriomers. 4- Which of the following compounds has optical activity? a) [Nicl b) Ni(NH₂)₂Cl₂ c) Ni(en), d) [Ni(NH₂)Cl₂] 5-Determine the ground state for the ion Ni in octahedral fields. a. A₂ b. T c. A d. Ta 6- The main selection rule in IR spectroscopy: a. spin multiplicity must stay the same b.gg transitions are not allowed c. the vibrations must change the bond angle d. there must be a change in the dipole moment 7- The complex with a strong IR peak at around 1600 cm¹¹: a. trans-[Cr(en),(H₂O), Cl, b. [Cr(NO₂) c. [Co(en)s]" d. [Cr(acac);] 02 Explain how IR spectroscopy is used to indicate that complexation of a ligand with a metal has occurred.
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
Chapter21: Transition Metals And Coordination Chemistry
Section: Chapter Questions
Problem 108IP: a. In the absorption spectrum of the complex ion Cr(NCS)63, there is a band corresponding to the...
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