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

Crystal Field Theory - Tetrahedral and Square Planar Complexes02:46

Crystal Field Theory - Tetrahedral and Square Planar Complexes

42.7K
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,...
42.7K

You might also read

Related Articles

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

Sort by
Same author

Inhibition, biochemical activities, and control efficacy of fluopyram·tebuconazole against <i>Alternaria</i> spp. causing GALSB: Implications for QoI fungicide resistance management.

Plant disease·2026
Same author

Deuterated water and the formation of the satellites of Uranus.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same author

Hierarchical Chiral Self-Assembly of Nanocylinders Composed of Sequence-Defined Mesogenic Dimers.

Journal of the American Chemical Society·2026
Same author

Strain, Chain, Repeat: Synthesis and Optoelectronic Properties of Poly(Naphthalene Benzene Vinylene)s.

ACS macro letters·2026
Same author

Chiroptics of In-Plane Excitons.

The journal of physical chemistry. A·2026
Same author

Peer victimization and physical activity: the mediating role of self-esteem and physical self-concept.

Frontiers in psychology·2026

Related Experiment Video

Updated: Jul 12, 2025

Fabrication of Fully Solution Processed Inorganic Nanocrystal Photovoltaic Devices
11:06

Fabrication of Fully Solution Processed Inorganic Nanocrystal Photovoltaic Devices

Published on: July 8, 2016

10.5K

Self-Patterning Tetrathiafulvalene Crystalline Films.

St John Whittaker1, Merritt McDowell1, Justin Bendesky1

  • 1Department of Chemistry, Molecular Design Institute, New York University, New York, New York 10003, United States.

Chemistry of Materials : a Publication of the American Chemical Society
|October 30, 2023
PubMed
Summary

Crystal twisting in Tetrathiafulvalene (TTF) materials leads to spontaneous pattern formation. Exposure to methanol vapor induced significant crystal reorganization and restructuring, demonstrating a generalizable path for materials science.

More Related Videos

Reductive Electropolymerization of a Vinyl-containing Poly-pyridyl Complex on Glassy Carbon and Fluorine-doped Tin Oxide Electrodes
09:17

Reductive Electropolymerization of a Vinyl-containing Poly-pyridyl Complex on Glassy Carbon and Fluorine-doped Tin Oxide Electrodes

Published on: January 30, 2015

11.9K
Harvesting Solar Energy by Means of Charge-Separating Nanocrystals and Their Solids
13:29

Harvesting Solar Energy by Means of Charge-Separating Nanocrystals and Their Solids

Published on: August 23, 2012

14.2K

Related Experiment Videos

Last Updated: Jul 12, 2025

Fabrication of Fully Solution Processed Inorganic Nanocrystal Photovoltaic Devices
11:06

Fabrication of Fully Solution Processed Inorganic Nanocrystal Photovoltaic Devices

Published on: July 8, 2016

10.5K
Reductive Electropolymerization of a Vinyl-containing Poly-pyridyl Complex on Glassy Carbon and Fluorine-doped Tin Oxide Electrodes
09:17

Reductive Electropolymerization of a Vinyl-containing Poly-pyridyl Complex on Glassy Carbon and Fluorine-doped Tin Oxide Electrodes

Published on: January 30, 2015

11.9K
Harvesting Solar Energy by Means of Charge-Separating Nanocrystals and Their Solids
13:29

Harvesting Solar Energy by Means of Charge-Separating Nanocrystals and Their Solids

Published on: August 23, 2012

14.2K

Area of Science:

  • Materials Science
  • Crystallography
  • Physical Chemistry

Background:

  • Tetrathiafulvalene (TTF) crystals grown from melt exhibit spherulitic organization with helicoidal fibrils.
  • These spherulites display alternating bright and dark concentric bands under polarized light, indicating varied crystallographic faces at the surface.

Purpose of the Study:

  • To investigate the reorganization of TTF crystals upon exposure to methanol vapor.
  • To explore the potential of crystal twisting for spontaneous pattern formation in materials.

Main Methods:

  • Melt-grown TTF crystals were exposed to methanol vapor.
  • Optical microscopy and Scanning Electron Microscopy (SEM) were used to observe structural changes.
  • Analysis of crystallographic face exposure and recrystallization patterns.

Main Results:

  • Methanol vapor induced band-dependent reorganization of TTF crystals, with growth on bright bands.
  • Complete restructuring of original spherulites occurred after 24 hours, forming concentric circles of crystallites.
  • SEM revealed a semiporous inner structure in the recrystallized outgrowths, suggesting solvent-induced recrystallization.

Conclusions:

  • Crystal twisting facilitates rhythmic material redistribution and spontaneous pattern formation.
  • This phenomenon is generalizable across various materials, independent of specific molecular or crystal structures.