Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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The magnitude of the magnetic moment of Mn2+ in its complexes is typically 5.3μB. How many unpaired electrons does the ion possess?
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- Q 2. Comment on the Kinetic and thermodynamic stability of metal complexes? (2 marks) (a) Which complex is kinetically labile or inert according to crystal field theory? H₂O OH2 OH2 * H₂O NECHI Mn OH2 OH2 4- 2+ [+] NEC CEN CEN (b) Which complex is most thermodynamically stable and why? Calculate log ẞ to determine stability? H3N 2+ _NH3] 2 [NC-Ag-CN]] NH3 3+ H3N... H3N ,,NH3 Cr NH3 H3N NH3 NH3 K 1.0 x10¹² K 5.4 x 1018 K=2.0 × 105arrow_forwardWhat is the coordination number and number of d-electrons and structures of the isomers for the following molecules? [Pt(CH3)2(NH3)2] CN= number of d-electrons = What is the spin-only magnetic moment? Draw all isomers and label each with the point group.arrow_forwardConsider the solvatochromic complex, [Mo(bipy)(CO)4]. The complex has a MLCT peak in the UV-vis spectrum. This peak is at 533 nm in acetonitrile solvent and at 584 nm in benzene solvent. In a 50:50 acetonitrile:benzene mixture, the peak is at 559 nm. Is the mixture of acetonitrile and benzene immediately surrounding the [Mo(bipy)(CO)4] molecules less than, equal to, or greater than a 50:50 mixture (acetonitrile:benzene)? Justify your answer. (HINT: Do you need to convert the wavelengths to a more appropriate unit?)arrow_forward
- The only spin magnetic moment of the central metal in the complex Na3[Mn(CN)6] is-HB. The result must be given with three significant figures (for example 7.34) Iarrow_forwardWhich dn electron configurations are expected to undergo a Jahn–Teller distortion in a tetrahedral coordination compound? Explain your answer.arrow_forwardWhat is the ligand field stabilization energy for a high spin d6 complex in terms of Δ0?arrow_forward
- 2. Consider a hypothetical trigonal bipyramidal Fe(III) complex [FeF2(OH)3]². We need to divide the five donor atoms of the ligands into two groups: 2F and 30. F HO FeOH F OH (a) Identify the point group of the complex and assign x, y, and z to it. (b) Indicate the symmetries of the Fe valence orbitals, i.e., 3d, 4s, and 4p. (c) Derive the symmetries and expressions of the two F σ-SALCs, considering that each F. atom contributes one 2p orbital with a lone pair to form the σ-SALCs. (d) Derive the symmetries and expressions of the three σ-SALCs on the OH ligands, considering that each O atom contributes one 2p orbital with a lone pair to form the σ- SALCs. (e) Draw a σ bonding-only MO energy level diagram for the complex, mark the MOs with symmetry labels, and fill the MOS with the valence electrons. (f) Consider each O atom contributing one perpendicular 2p orbital to form π-SALCs. Derive the symmetries of the three л-SALCS. (g) Identify the MOs in (e) with which the O л-SALCs interact,…arrow_forwardCo is strong field ligand Plot the temperature dependence of the magnetic susceptibility versus temperature for a paramagnetic compound. Provide a rough sketch. Look up and write down the equation for Curie-Weiss law. How does this apply to your plot?arrow_forwardPlease answer both and ignore my random working outarrow_forward
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