Related Experiment Video
Updated: Jul 16, 2026
08:54
Synthesis and Exfoliation of Discotic Zirconium Phosphates to Obtain Colloidal Liquid Crystals
Published on: May 25, 2016
Oligomeric rod-disc nematic liquid crystals.
Corrie T Imrie1, Zhibao Lu, Stephen J Picken
1Chemistry, School of Engineering and Physical Sciences, Meston Building, University of Aberdeen, Old Aberdeen, AB24 3UE, UK. c.t.imrie@abdn.ac.uk
Chemical Communications (Cambridge, England)
|March 16, 2007
Summary
Six novel oligomeric nematic liquid crystals were synthesized. These compounds feature a triphenylene core with six 4-cyanobiphenyl units linked by flexible alkyl spacers.
Area of Science:
- Materials Science
- Organic Chemistry
- Supramolecular Chemistry
Background:
- Liquid crystals (LCs) are states of matter with properties between conventional liquids and solid crystals.
- Oligomeric liquid crystals offer tunable properties through controlled molecular architecture.
- Triphenylene-based cores are known for their discotic mesophase behavior.
Purpose of the Study:
- To synthesize and characterize novel oligomeric nematic liquid crystals.
- To investigate the influence of triphenylene core and cyanobiphenyl units on liquid crystalline properties.
- To explore the structure-property relationships in new discotic liquid crystal systems.
Main Methods:
- Multi-step organic synthesis to construct the target molecules.
- Characterization using techniques such as NMR spectroscopy, mass spectrometry, and elemental analysis.
- Polarized optical microscopy and differential scanning calorimetry to study liquid crystalline phase behavior.
Main Results:
- Successful synthesis of six new oligomeric compounds.
- Identification of nematic liquid crystalline phases in the synthesized materials.
- The triphenylene core and cyanobiphenyl units contribute to the observed mesophase behavior.
Conclusions:
- The reported compounds represent a new class of oligomeric nematic liquid crystals.
- Flexible alkyl spacers play a crucial role in achieving the desired liquid crystalline properties.
- Further studies can explore their potential applications in display technologies and optical devices.
Related Concept Videos
01:34Fluid Mosaic Model
The fluid mosaic model was first proposed as a visual representation of research observations. The model comprises the composition and dynamics of membranes and serves as a foundation for future membrane-related studies. The model depicts the structure of the plasma membrane with a variety of components, which include phospholipids, proteins, and carbohydrates. These integral molecules are loosely bound, defining the cell’s border and providing fluidity for optimal function.LipidsThe most...
02:22Structures of Solids
Solids in which the atoms, ions, or molecules are arranged in a definite repeating pattern are known as crystalline solids. Metals and ionic compounds typically form ordered, crystalline solids. A crystalline solid has a precise melting temperature because each atom or molecule of the same type is held in place with the same forces or energy. Amorphous solids or non-crystalline solids (or, sometimes, glasses) which lack an ordered internal structure and are randomly arranged. Substances that...
01:21Polymer Classification: Crystallinity
Unlike ionic or small covalent molecules, polymers do not form crystalline solids due to the diffusion limitations of their long-chain structures. However, polymers contain microscopic crystalline domains separated by amorphous domains.
Crystalline domains are the regions where polymer chains are aligned in an orderly manner and held together in proximity by intermolecular forces. For example, chains in the crystalline domains of polyethylene and nylon are bound together by van der Waals...
Crystalline domains are the regions where polymer chains are aligned in an orderly manner and held together in proximity by intermolecular forces. For example, chains in the crystalline domains of polyethylene and nylon are bound together by van der Waals...