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Andreas F Thünemann1, Stephan Kubowicz, Christian Burger

  • 1Fraunhofer Institute, Geiselbergstrasse 69, D-14476 Golm, Germany. andreas.thunemann@iap.fhg.de

まとめ

研究者らは,ポリエチレン酸化物 (ポリエチレン酸化物) -ブロック -ポリエチレン酸化物 (ポリエチレン酸化物) -ブロック -ポリエチレン酸化物 (ポリエチレン酸化物) -ブロック -ポリエチレン酸化物 (ポリエチレン酸化物) -ブロック -ポリエチレン酸化物 (ポリエチレン酸化物) -ブロック -ポリエチレン酸化物 (ポリエチレン酸化物) -ポリエチレン酸化物 (ポリエチレン酸化物) -ポリエチレン酸化物 (ポリエチレン酸化物) -ポリエチレン酸化物) -ポリエチレン酸化物 (ポリエチレン酸化物) -ポリエチレン酸化物 (ポリエチレン酸化物) -ポリエチレン酸化物 (ポリエチレン酸化物) -ポリエチレン酸化物 (ポリエチレン酸化物) -ポリエチレン酸化物 (ポリエチレン酸化物) -ポリエチレン酸化物) -ポリエチレン酸化物 (ポリエチレン酸化物) -ポリエチレン酸化物 (ポリエチレン酸化物) -ポリエチレン酸化物) を組み合わせることで新しい液晶材料を開発しました. この新しい材料は,ディスク柱の内部でアルファヘリクルの構造を呈し,高度な材料の応用の可能性を示しています.

関連する概念動画

Carbon Skeletons01:12

Carbon Skeletons

Life on Earth is carbon-based, as all macromolecules that make up living organisms contain carbon atoms. All organic compounds have a carbon backbone. Each carbon atom is tetravalent and can bond with four other atoms, making it an extraordinarily flexible component of biological molecules. Because carbon’s valence electrons are stable, it rarely becomes an ion. As the carbon chain increases in length, structural modifications such as ring structures, double bonds, and branching side chains...
Conformations of Ethane and Propane02:18

Conformations of Ethane and Propane

In an organic molecule, free rotation about the carbon-carbon single bond results in energetically different conformers of the molecule. Due to this rotation, called the internal rotation, ethane has two major conformations — staggered and eclipsed.
Staggered conformation is a low energy and more stable conformation with the C-H bonds on the front carbon placed at 60°dihedral angles relative to the C-H bonds on the back carbon, leading to a reduced torsional strain. In staggered ethane, the...
Chair Conformation of Cyclohexane02:02

Chair Conformation of Cyclohexane

The chair conformation is the most stable form of cyclohexane due to the absence of angle and torsional strain. The absence of angle strain is a result of cyclohexane’s bond angle being very close to the ideal tetrahedral bond angle of 109.5° in its chair conformer. Similarly, the torsional strain is also absent owing to the perfectly staggered arrangement of bonds.
The hydrogen atoms linked to carbons are arranged in two different axial and equatorial orientations to achieve this staggered...
Aromatic Hydrocarbon Anions: Structural Overview01:18

Aromatic Hydrocarbon Anions: Structural Overview

Neutral hydrocarbons like cyclopentadiene with an odd number of carbon atoms and one intervening CH2 group in the ring are not aromatic. Cyclopentadiene with 4 π electrons does not satisfy the 4n + 2 π electron rule. Additionally, the intervening CH2 group is sp3 hybridized and lacks a vacant p orbital, thereby interrupting the overlap of p orbitals in a continuous manner and preventing the delocalization of π electrons throughout the ring.
Due to the absence of continuous overlap of p...
Five-Membered Heterocyclic Aromatic Compounds: Overview01:13

Five-Membered Heterocyclic Aromatic Compounds: Overview

Heterocyclic aromatic compounds are cyclic compounds that are aromatic and have one or more heteroatoms—atoms other than carbon, in the ring. Depending upon the number of atoms present in the ring, they can be either five or six-membered. Examples of five-membered heterocyclic aromatic compounds include pyrrole, furan, thiophene, and imidazole. Pyrrole consists of one nitrogen atom having one lone pair of electrons. Furan and thiophene have one oxygen and one sulfur heteroatom, respectively.
Aromatic Hydrocarbon Cations: Structural Overview01:18

Aromatic Hydrocarbon Cations: Structural Overview

Cycloheptatriene is a neutral monocyclic unsaturated hydrocarbon that consists of an odd number of carbon atoms and an intervening sp3 carbon in the ring. The three double bonds in the ring correspond to 6 π electrons, which is a Huckel number, and therefore satisfies the criteria of 4n + 2 π electrons. However, the intervening sp3 carbon disrupts the continuous overlap of p orbitals. As a result, cycloheptatriene is not aromatic.
Removing one hydrogen from the intervening CH2 group with both...