Advanced Inorganic Chemistry: verschil tussen versies

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[[Categorie:Machemie]]
[[Categorie:Machemie]]
=== 18 augustus 2022 ===
=== 30 januari 2023 ===
#What is the mechanism of sensitized lanthanide luminescence? Use a scheme to illustrate this mechanism.
#What is the mechanism of sensitized lanthanide luminescence? Use a scheme to illustrate this mechanism.
#Xenon fluoride reactions
#Xenon fluoride reactions
#*a) Discuss the synthesis and reactivity of xenon fluorides.  
#*a) Discuss the synthesis and reactivity of xenon fluorides.  
#*b) Why is it easier to prepare xenon compounds than argon compounds?  
#*b) Why is it easier to prepare xenon compounds than argon compounds?  
#Octahedral crystal field
#*a) How do p-orbitals and d-orbitals split in an octahedral crystal field?
#*a) How do p-orbitals and d-orbitals split in an octahedral crystal field?
#*b) Determine the ligand field stabilization energy LFSE for the following octahedral metal complexes (a) d3 (b) high-spin d5 (c) high-spin d6 (d) low-spin d6  (e) d9
#*b) Determine the ligand field stabilization energy LFSE for the following octahedral metal complexes (a) d3 (b) high-spin d5 (c) high-spin d6 (d) low-spin d6  (e) d9
#Describe the hysteresis loop of a ferromagnetic material.
#How do polarizing power and polarizability of ions influence partial covalent bond formation of ionic compounds? What different stages can be observed between a purely ionic bond and a purely covalent bond?


=== 18 augustus 2022 ===
=== 18 augustus 2022 ===

Versie van 30 jan 2023 17:21

Examenvragen

30 januari 2023

  1. What is the mechanism of sensitized lanthanide luminescence? Use a scheme to illustrate this mechanism.
  2. Xenon fluoride reactions
    • a) Discuss the synthesis and reactivity of xenon fluorides.
    • b) Why is it easier to prepare xenon compounds than argon compounds?
  3. Octahedral crystal field
    • a) How do p-orbitals and d-orbitals split in an octahedral crystal field?
    • b) Determine the ligand field stabilization energy LFSE for the following octahedral metal complexes (a) d3 (b) high-spin d5 (c) high-spin d6 (d) low-spin d6 (e) d9
  4. Describe the hysteresis loop of a ferromagnetic material.
  5. How do polarizing power and polarizability of ions influence partial covalent bond formation of ionic compounds? What different stages can be observed between a purely ionic bond and a purely covalent bond?

18 augustus 2022

  1. What is the mechanism of sensitized lanthanide luminescence? Use a scheme to illustrate this mechanism.
  2. Xenon fluoride reactions
    • a) Discuss the synthesis and reactivity of xenon fluorides.
    • b) Why is it easier to prepare xenon compounds than argon compounds?
  3. Determine the ligand field stabilization energy LFSE for the following octahedral metal complexes (a) d3 (b) high-spin d5 (c) high-spin d6 (d) low-spin d6 (e) d9
  4. Give 5 examples that illustrate the anomalous chemical behavior of lithium compared to the other alkali metals.
  5. What are the main later developments of the periodic system after Mendeleev’s contributions in 1869–1870?

28 januari 2020 - VM

  1. Periodiek systeem
    • a) Periodic trends in MV, density, IE en electronegativiteit
    • b) Bespreek La vs Lu in IIIb
  2. Lanthanide-contractie
    • a)Trend in ion en atoomradius van lanthaniden
    • b) Waarom 4d en 5d metalen gelijkaardige eigenschappen hebben
  3. Solvents
    • a) Manieren om non-aqueous solvent op te delen (protisch vs aprotisch - donor vs acceptor)
    • b) wat zijn donor- en acceptor solvents?
    • c) Hoe geeft men donorsterkte kwantitatief weer?
  4. d-blok metalen
    • a) Jahn Teller-effect
    • b) Waarom d3 en d8 uitgesproken octahedrisch zijn
  5. CT
    • a) Wat zijn charge transfer bands?
    • b) Vergelijk LMCT en MLCT
    • c) welke d-metaal-complexen vertonen CT-bands?
    • d) Hoe kan je CT-bands waarnemen?
    • e) Welke lanthaniden vertonen CT en waarom?

Datum

  1. Vraag 1
  2. Vraag 2
    • Deelvraag 1
    • Deelvraag 2
    • Deelvraag 3
  3. Vraag 3