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

10.1K
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...
10.1K
Hybridization of Atomic Orbitals II03:35

Hybridization of Atomic Orbitals II

42.2K
sp3d and sp3d 2 Hybridization
42.2K
Hybridization of Atomic Orbitals I03:24

Hybridization of Atomic Orbitals I

58.7K
The mathematical expression known as the wave function, ψ, contains information about each orbital and the wavelike properties of electrons in an isolated atom. When atoms are bound together in a molecule, the wave functions combine to produce new mathematical descriptions that have different shapes. This process of combining the wave functions for atomic orbitals is called hybridization and is mathematically accomplished by the linear combination of atomic orbitals. The new orbitals that...
58.7K
Molecular Orbital Theory II03:51

Molecular Orbital Theory II

24.0K
Molecular Orbital Energy Diagrams
24.0K
Crystal Field Theory - Tetrahedral and Square Planar Complexes02:46

Crystal Field Theory - Tetrahedral and Square Planar Complexes

46.0K
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,...
46.0K
Predicting Molecular Geometry02:27

Predicting Molecular Geometry

40.3K
VSEPR Theory for Determination of Electron Pair Geometries
40.3K

You might also read

Related Articles

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

Sort by
Same author

Orientation dependence of the magnetic phase diagram of Yb<sub>2</sub>Ti<sub>2</sub>O<sub>7</sub>.

Physical review. B·2026
Same author

Real-World Multicenter Study on the Effectiveness of Dolutegravir Plus Lamivudine in Treatment-Naive People Living with HIV with Baseline HIV-1 RNA > 500,000 Copies/mL.

Infectious diseases and therapy·2026
Same author

Beneficial Effect of Follicle-Stimulating Hormone Priming on OPU-IVF in Prepubertal Calves of Japanese Black Cattle (Wagyu).

Reproduction in domestic animals = Zuchthygiene·2026
Same author

Uncertainty-Aware Probabilistic Fusion Post-Processing for Continuous Wrist Motion Estimation in Myoelectric Control.

Sensors (Basel, Switzerland)·2026
Same author

Lipocentric Non-Pore-Forming Membrane Depolarization Underlies the Antibacterial Activity of Ribosomal Protein S30.

The journal of physical chemistry letters·2026
Same author

Severe Mpox keratitis resulting in significant visual impairment in a patient with advanced HIV: A case report.

International journal of STD & AIDS·2026

Related Experiment Video

Updated: Nov 15, 2025

Low Pressure Vapor-assisted Solution Process for Tunable Band Gap Pinhole-free Methylammonium Lead Halide Perovskite Films
08:12

Low Pressure Vapor-assisted Solution Process for Tunable Band Gap Pinhole-free Methylammonium Lead Halide Perovskite Films

Published on: September 8, 2017

9.8K

Decoupled molecular and inorganic framework dynamics in CH3NH3PbCl3.

M Songvilay1, Zitian Wang1, V Garcia Sakai2

  • 1School of Physics and Astronomy, University of Edinburgh, Edinburgh EH9 3FD, United Kingdom.

Physical Review Materials
|March 3, 2021
PubMed
Summary

Researchers studied molecular dynamics in methylammonium lead chloride perovskites. They found molecular and lattice dynamics are decoupled, suggesting lead-halide bonds are key to photovoltaic properties, not hydrogen bonds.

More Related Videos

Monovalent Cation Doping of CH3NH3PbI3 for Efficient Perovskite Solar Cells
08:30

Monovalent Cation Doping of CH3NH3PbI3 for Efficient Perovskite Solar Cells

Published on: March 19, 2017

16.9K
Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of ChalcogenidoplumbatesII or IV
10:42

Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of ChalcogenidoplumbatesII or IV

Published on: December 29, 2016

10.9K

Related Experiment Videos

Last Updated: Nov 15, 2025

Low Pressure Vapor-assisted Solution Process for Tunable Band Gap Pinhole-free Methylammonium Lead Halide Perovskite Films
08:12

Low Pressure Vapor-assisted Solution Process for Tunable Band Gap Pinhole-free Methylammonium Lead Halide Perovskite Films

Published on: September 8, 2017

9.8K
Monovalent Cation Doping of CH3NH3PbI3 for Efficient Perovskite Solar Cells
08:30

Monovalent Cation Doping of CH3NH3PbI3 for Efficient Perovskite Solar Cells

Published on: March 19, 2017

16.9K
Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of ChalcogenidoplumbatesII or IV
10:42

Combining Solid-state and Solution-based Techniques: Synthesis and Reactivity of ChalcogenidoplumbatesII or IV

Published on: December 29, 2016

10.9K

Area of Science:

  • Materials Science
  • Solid-State Physics
  • Crystallography

Background:

  • Organic-inorganic lead-halide perovskites exhibit high photovoltaic efficiencies.
  • Hydrogen bonding between organic cations and halide anions is proposed to influence optoelectronic properties.

Purpose of the Study:

  • To investigate the molecular dynamics and their relationship with structural phase transitions in methylammonium lead chloride (MAPbCl3).
  • To determine the role of hydrogen bonding versus lead-halide bonding in the optoelectronic properties of lead-halide perovskites.

Main Methods:

  • Time-of-flight neutron spectroscopy (backscattering and higher-energy) to probe molecular dynamics.
  • Neutron powder diffraction to identify structural phase transitions.

Main Results:

  • Thermally activated molecular dynamics observed around 95 K.
  • Anomalous broadening in molecular vibrations at ~95 K, indicating reduced lifetime.
  • Structural phase transitions occurred at higher temperatures (178 K and 173 K).
  • Decoupled dynamics between molecular motion and inorganic lattice transitions.

Conclusions:

  • Molecular and lattice dynamics in MAPbCl3 are decoupled.
  • The energy scale relevant to photovoltaic properties is likely determined by lead-halide bonds, not hydrogen bonds.