Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Valence Bond Theory02:42

Valence Bond Theory

8.5K
Coordination compounds and complexes exhibit different colors, geometries, and magnetic behavior, depending on the metal atom/ion and ligands from which they are composed. In an attempt to explain the bonding and structure of coordination complexes, Linus Pauling proposed the valence bond theory, or VBT, using the concepts of hybridization and the overlapping of the atomic orbitals. According to VBT, the central metal atom or ion (Lewis acid) hybridizes to provide empty orbitals of suitable...
8.5K
Predicting Molecular Geometry02:27

Predicting Molecular Geometry

34.2K
VSEPR Theory for Determination of Electron Pair Geometries
34.2K
Colors and Magnetism03:02

Colors and Magnetism

11.6K
Color in Coordination Complexes
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human...
11.6K
Coordination Compounds and Nomenclature02:54

Coordination Compounds and Nomenclature

21.3K
In most main group element compounds, the valence electrons of the isolated atoms combine to form chemical bonds that satisfy the octet rule. For instance, the four valence electrons of carbon overlap with electrons from four hydrogen atoms to form CH4. The one valence electron leaves sodium and adds to the seven valence electrons of chlorine to form the ionic formula unit NaCl (Figure 1a). Transition metals do not normally bond in this fashion. They primarily form coordinate covalent bonds, a...
21.3K
Structural Isomerism02:34

Structural Isomerism

19.2K
Isomerism in Complexes
Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly, SCN− can...
19.2K
Crystal Field Theory - Tetrahedral and Square Planar Complexes02:46

Crystal Field Theory - Tetrahedral and Square Planar Complexes

42.0K
Tetrahedral Complexes
Crystal field theory (CFT) is applicable to molecules in geometries other than octahedral. In octahedral complexes, the lobes of the dx2−y2 and dz2 orbitals point directly at the ligands. For tetrahedral complexes, the d orbitals remain in place, but with only four ligands located between the axes. None of the orbitals points directly at the tetrahedral ligands. However, the dx2−y2 and dz2 orbitals (along the Cartesian axes) overlap with the ligands less than the dxy,...
42.0K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Synthesis and Reactivity of Heteroleptic U<sup>4+</sup> Alkyl, Benzyl, and Hydride Imidophosphorane Complexes.

Inorganic chemistry·2026
Same author

Investigation of metal identity on the structure and electronic properties of dinuclear Mn and Co complexes with triaryl tetradentate ligands.

Dalton transactions (Cambridge, England : 2003)·2026
Same author

Transient Triamidoamine Neptunium(V)-Mono(Imido) Complexes: C-H Activations and Hydrogen Atom Transfer Driven by Effective Nuclear Charge.

Journal of the American Chemical Society·2026
Same author

Implementing the Quantum Fourier Transform on a molecular qudit with full refocusing and state tomography.

Nature communications·2026
Same author

Using Diffusely Charged Bridging Ligands to Maximize Single-Ion Anisotropy and Dipolar Coupling in Dinuclear ErCOT Molecular Magnets.

Inorganic chemistry·2026
Same author

Zn-flux-enabled synthesis of orthorhombic kagome YbFe<sub>6</sub>Ge<sub>6</sub>: Yb reduction and magnetic behavior.

Chemical communications (Cambridge, England)·2026
Same journal

A Domino-Synthesized Dicoordinate Copper(I) Bis-imidazopyridine Complex Triggering Cuproptosis/Ferroptosis for Enhanced Cancer Immunotherapy.

Angewandte Chemie (International ed. in English)·2026
Same journal

Mirror-Symmetric Organic Two-Dimensional Crystals for Alternative Photon Transport Pathways.

Angewandte Chemie (International ed. in English)·2026
Same journal

Cobalt-Catalyzed Migratory E-Selective Asymmetric Aza-Nozaki-Hiyama-Kishi Coupling.

Angewandte Chemie (International ed. in English)·2026
Same journal

Facile Synthesis of α,ω-Dihydroxy Telechelic Macromonomers From Ethylene and α-Olefins for Recyclable Alternating Block Copolymers.

Angewandte Chemie (International ed. in English)·2026
Same journal

Multi-Atom Sub-Nanometer Assemblies on Interpenetrating Multi-Chambered N/C Nanospheres.

Angewandte Chemie (International ed. in English)·2026
Same journal

A Synergistic C<sub>2+</sub> Alcohols/Olefins-Intermediated Pathway Boosts CO<sub>2</sub> Hydrogenation to Aromatics.

Angewandte Chemie (International ed. in English)·2026
See all related articles

Related Experiment Video

Updated: Jun 21, 2025

The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes
10:51

The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes

Published on: April 10, 2015

12.1K

A Four-Coordinate Pr4+ Imidophosphorane Complex.

Andrew C Boggiano1, Sabyasachi Roy Chowdhury2, Michael D Roy1

  • 1School of Chemistry & Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332-0400, USA.

Angewandte Chemie (International Ed. in English)
|July 16, 2024
PubMed
Summary
This summary is machine-generated.

Researchers synthesized a novel tetravalent praseodymium complex, [Pr4+(NPtBu3)4], using an imidophosphorane ligand. This unique pseudo-tetrahedral complex offers new insights into lanthanide electronic structures and crystal field effects.

Keywords:
ImidophosphoranesLanthanidesPraseodymiumTetravalent lanthanide complexes

More Related Videos

Preparation and Reactivity of a Triphosphenium Bromide Salt: A Convenient and Stable Source of PhosphorusI
08:46

Preparation and Reactivity of a Triphosphenium Bromide Salt: A Convenient and Stable Source of PhosphorusI

Published on: November 22, 2016

7.8K
Preparation and Use of Carbonyl-decorated Carbenes in the Activation of White Phosphorus
14:07

Preparation and Use of Carbonyl-decorated Carbenes in the Activation of White Phosphorus

Published on: October 3, 2014

13.6K

Related Experiment Videos

Last Updated: Jun 21, 2025

The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes
10:51

The Synthesis, Characterization and Reactivity of a Series of Ruthenium N-triphosPh Complexes

Published on: April 10, 2015

12.1K
Preparation and Reactivity of a Triphosphenium Bromide Salt: A Convenient and Stable Source of PhosphorusI
08:46

Preparation and Reactivity of a Triphosphenium Bromide Salt: A Convenient and Stable Source of PhosphorusI

Published on: November 22, 2016

7.8K
Preparation and Use of Carbonyl-decorated Carbenes in the Activation of White Phosphorus
14:07

Preparation and Use of Carbonyl-decorated Carbenes in the Activation of White Phosphorus

Published on: October 3, 2014

13.6K

Area of Science:

  • Inorganic Chemistry
  • Lanthanide Chemistry
  • Coordination Chemistry

Background:

  • Tetravalent lanthanides are rare and challenging to isolate due to their high charge density.
  • Understanding the electronic structure of lanthanides is crucial for developing new materials and catalysts.
  • Imidophosphorane ligands offer unique steric and electronic properties for stabilizing unusual oxidation states.

Purpose of the Study:

  • To synthesize and characterize a novel tetravalent praseodymium complex.
  • To investigate the electronic structure and magnetic properties of a four-coordinate Pr4+ complex.
  • To explore the interplay between crystal field splitting and spin-orbit coupling in a pseudo-tetrahedral lanthanide.

Main Methods:

  • Synthesis of the tetravalent praseodymium complex [Pr4+(NPtBu3)4].
  • Characterization using single-crystal X-ray diffraction, electron paramagnetic resonance (EPR), and L3-edge X-ray near-edge spectroscopy (XANES).
  • Magnetic susceptibility measurements and multiconfigurational quantum chemical calculations.

Main Results:

  • Isolation and structural elucidation of the pseudo-tetrahedral tetravalent praseodymium complex, [Pr4+(NPtBu3)4].
  • Demonstration of a unique electronic structure diverging from isoelectronic analogues due to increased crystal field effects.
  • Experimental and computational evidence for the interplay of crystal field splitting and spin-orbit coupling.

Conclusions:

  • The imidophosphorane ligand facilitates the stabilization of a rare tetravalent praseodymium complex.
  • The pseudo-tetrahedral coordination geometry significantly influences the electronic and magnetic properties of the Pr4+ ion.
  • This study provides a unique molecular model for investigating fundamental aspects of lanthanide electronic structure.