Question 3: The electronic absorption spectra of the complexes [CoCl4]²- shown in the following figure. [Co(H2O)6l2* 19400 16000 8000 25 000 20 000 15 000 10 000 5 000 Frequency (cm 1) Answer the following questions for both complexes: (iii)Explain the difference in molar absorptivities of the above complexes. Molar absorptivity, ɛ

Question 3: The electronic absorption spectra of the complexes [CoCl4]²- shown in the following figure. [Co(H2O)6l2* 19400 16000 8000 25 000 20 000 15 000 10 000 5 000 Frequency (cm 1) Answer the following questions for both complexes: (iii)Explain the difference in molar absorptivities of the above complexes. Molar absorptivity, ɛ

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter8: Bonding In Transition Metal Compounds And Coordination Complexes

Section: Chapter Questions

Problem 35P

See similar textbooks

Similar questions

By using the given 1) electronic absorption spectrum, 2) the Tanabo-Sugano diagram for d3 complex in octahedral ligand field and 3) the absorption/emission spectra, explain the following: a) Ligand field states (to support your explanation show the filling of the orbitals) b) Radiative transitions (to support your explanation refer to fluorescence, phosphorescence and Stokes’ shift)
The observed absorption band of the M2 + ion in the electronic spectrum of the hexaakua complex is 7500 cm-1. How many kJ / mol is the crystal field cleavage of the tetraakua complex of the same ion? (h = 6,626x10-34Js, c = 3x108ms-1) A. 142.63 B. 25.95 C. 2698.56 D. 39.88 E. 3333.33
[V(H2O)6]3+, has absorption bands at 17,800 and 25,700 cm-1. Please answer the following questions using a relevant Tanabe-Sugan diagram. a) How many electronic transitions are possible for this complex? b) Identify these transitions and clearly label the states.
The 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.
Consider the octahedral complex [FeBr6] 4−. In water solution it has an absorption peak at 864 nm with a molar absorptivity (ε) of 3.6 L mol-1 cm-1 . (I have a, b, and c, I need help with d, e, and f.) (a) What is the energy (in wavenumbers, cm-1 ) of the absorption peak? Show all work. (b) How many valence d electrons does the metal center have? Justify your answer. (c) How many unpaired electrons per molecule would a magnetic susceptibility experiment predict? What would the S number be for this transition metal center? Justify your answers. (d) What electronic transition results from absorption of 864-nm light? (e) Calculate the ligand stabilization energy (in units of ∆o) and units of coulombic (Πc) energy. (f) How would the ligand field strengths (∆o) of [Fe(NH3)6] 2+ and [Fe(bipy)3] 2+ differ from that of [FeBr6] 4−? Why?
What is the LFSE for the [Re(H2O)6]3+complex, knowing that ΔΔo = 33000 cm-1 and P= 15000 cm-1 ?
Three absorption bands were observed at 11200, 18350, 29000 cm-1 in the electronic spectrum of the [Ni(en)3]2+ complex. What is the ligand field transition corresponding to the absorption band at 18350 cm-1? (28Ni)
I'm struggling to understand magnetic moments. If [Mn(NCS)6]4- shiwed a value if 6.06 micro B, I guess that the complex would be low-spin. How would I show this and relate it to an energy level diagram showing the splitting of 3d orbitals? thankyou for any help .
Provide explanations for the number of intense perchlorate Cl-O stretching vibrational modes observed in the IR of the following three silver(I) complexes. explain briefly 1) The perchlorate anion in Ag(NH3)2(ClO4) has a single intense Cl-O stretching vibrational mode observed by IR at 1170cm-1. 2) The IR of Ag(NH3)ClO4 has three Cl-O stretching vibrational modes at 1220 cm-1,1130 cm-1and 920 cm-1 observed in the IR .
The 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 lengths
Calculate ∆ in kJ/mol if a d1 complex has an absorption maximum at 545 nm.
The absorbance of a 0.1 M solution of a complex was 0.15 at max. What is the value of molar absorptivity for this complex? What is the geometry of this complex?