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 Experiment Videos

Towards direct correlations between spin-crossover and structural features in iron(II) complexes.

Mathieu Marchivie1, Philippe Guionneau, Jean-François Létard

  • 1Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB), UPR CNRS 9048, Université Bordeaux I, 87 Av. de Docteur Schweitzer, F-33608 Pessac, France. marchivi@icmcb.u-bordeaux.fr

Acta Crystallographica. Section B, Structural Science
|August 30, 2003
PubMed
Summary

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

A New Robust 3D Cd(II) Coordination Polymer Engineered with Hexamethylenetetramine: Structure, Computational Insights, and Optical Properties.

ACS omega·2026
Same author

Stabilizing low symmetry-based functions of materials at room temperature through isosymmetric electronic bistability.

Materials horizons·2025
Same author

Synthesis of New Enantiopure Aminoalcohol Fluorenes as Promising Antimalarial Compounds.

ChemMedChem·2024
Same author

A 0D Ge(II)-Halide-Based Perovskite with Enhanced Semiconducting Behavior for Electronic Capacitors.

ACS omega·2024
Same author

Exploring the Optical and Energetic Properties of a Co(II)-Based Mixed Ligand MOF.

Inorganic chemistry·2024
Same author

A Nickel-Based Semiconductor Hybrid Material with Significant Dielectric Constant for Electronic Capacitors.

ACS omega·2024

The spin-crossover complex [Fe(PM-BiA)(2)(NCS)(2)] exists in two polymorphs with distinct transition behaviors. Structural features, like the theta(NCS) angle and hydrogen bonding, directly influence the cooperativity of the spin transition in these iron(II) complexes.

Area of Science:

  • Coordination Chemistry
  • Materials Science
  • Solid-State Chemistry

Background:

  • Spin-crossover (SCO) complexes are molecular materials exhibiting a reversible switch between low-spin and high-spin states.
  • Polymorphism in SCO complexes can lead to varied spin-transition properties.
  • Understanding structure-property relationships is crucial for designing SCO materials.

Purpose of the Study:

  • To investigate the correlation between structural features and spin-transition properties in two polymorphs of [Fe(PM-BiA)(2)(NCS)(2)].
  • To elucidate the role of specific structural parameters in the cooperativity of the spin transition.
  • To compare the crystal structures of the two polymorphs at different temperatures.

Main Methods:

  • Single-crystal X-ray diffraction at room temperature and 120 K.

Related Experiment Videos

  • Analysis of crystal packing and intermolecular interactions.
  • Introduction and investigation of a new angular parameter, theta(NCS).

    • Main Results:

    • The [Fe(PM-BiA)(2)(NCS)(2)] complex crystallizes in two polymorphs (I and II) with distinct spin-transition behaviors (abrupt vs. gradual).
    • Crystal structures of polymorph (II) were determined at high-spin (room temperature) and low-spin (120 K) states.
    • A novel angular parameter, theta(NCS), and specific intermolecular hydrogen bonds involving NCS sulfur atoms were identified as key factors influencing spin-transition cooperativity.

    Conclusions:

    • The study establishes a direct link between specific structural features (theta(NCS) angle, hydrogen bonding) and the cooperativity of spin transitions in SCO iron(II) complexes.
    • These findings are generalizable to other SCO iron(II) complexes with the formula [Fe(PM-L)(2)(NCS)(2)].
    • The research provides insights into the rational design of SCO materials with tailored transition properties.