Related Experiment Video
Updated: Jan 27, 2026
06:03
A Push-pull Protocol to Reduce Colonization of Bird Nest Boxes by Honey Bees
Published on: September 4, 2016
9.1K
Small isomeric push-pull chromophores based on thienothiophenes with tunable optical (non)linearities
Jan Podlesný1, Oldřich Pytela, Milan Klikar
1Institute of Organic Chemistry and Technology, Faculty of Chemical Technology, University of Pardubice, Studentská 573, Pardubice, 53210, Czech Republic. filip.bures@upce.cz.
Organic & Biomolecular Chemistry
|March 28, 2019
Summary
New push-pull chromophores featuring thienothiophene donors were synthesized. These organic materials offer tunable thermal, electrochemical, and optical properties, with structural changes significantly impacting performance.
Area of Science:
- Organic Chemistry
- Materials Science
- Photophysics
Background:
- Push-pull chromophores are essential for advanced optical and electronic applications.
- Thienothiophene scaffolds offer unique electronic properties for molecular design.
- Tuning molecular structure is key to optimizing material characteristics.
Purpose of the Study:
- To design and synthesize novel D-π-A push-pull chromophores based on thienothiophene donors.
- To investigate the influence of structural variations on thermal, electrochemical, and (non)linear optical properties.
- To establish detailed structure-property relationships for future molecular design.
Main Methods:
- Synthesis of fourteen new D-π-A push-pull chromophores.
- Characterization of thermal, electrochemical, and (non)linear optical properties.
- Systematic structural modification and property evaluation.
Main Results:
- Successful synthesis of novel thienothiophene-based push-pull chromophores.
- Demonstration of easily tunable thermal, electrochemical, and (non)linear optical properties.
- Significant impact of small structural variations on fundamental material properties.
Conclusions:
- The synthesized chromophores exhibit versatile and tunable properties.
- Detailed structure-property relationships were established for thienothiophene-based systems.
- These findings provide a valuable guide for designing new D-π-A molecules using fused thiophene scaffolds.
Related Concept Videos
02:34Structural Isomerism
21.5K
Isomerism in Complexes
Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly, SCN− can...
Isomers are different chemical species that have the same chemical formula. Structural isomerism of coordination compounds can be divided into two subcategories, the linkage isomers and coordination-sphere isomers.
Linkage isomers occur when the coordination compound contains a ligand that can bind to the transition metal center through two different atoms. For example, the CN− ligand can bind through the carbon atom or through the nitrogen atom. Similarly, SCN− can...
21.5K
02:43Isomerism
23.1K
Isomers are molecules with the same molecular formula but different structural arrangements. Isomers can be further classified into constitutional isomers and stereoisomers. Constitutional isomers differ in the connectivity of their constituent atoms. For example, 2-butanol and diethyl ether are constitutional isomers, as they have the same chemical formula, C4H10O, but differ in the connectivity of the carbon and oxygen atoms. Constitutional isomers have different physical and chemical...
23.1K
02:01Isomerism in Alkenes
14.8K
Alkenes like 1-butene and 2-butene exhibit constitutional isomerism, as they differ in the position of the double bond. Further, 2-butene exhibits stereoisomerism and exists as two distinct compounds differing in spatial arrangement.
An isomer is called cis-2-butene when the methyl groups are on the same side of the double bond, and the other stereoisomer, in which methyl groups are on the opposite side of the double bond, is called trans-2-butene. The cis and trans stereoisomers are not...
An isomer is called cis-2-butene when the methyl groups are on the same side of the double bond, and the other stereoisomer, in which methyl groups are on the opposite side of the double bond, is called trans-2-butene. The cis and trans stereoisomers are not...
14.8K
02:37Disubstituted Cyclohexanes: cis-trans Isomerism
14.1K
Depending upon the different spatial orientation of the substituents, the disubstituted cycloalkanes exhibit two types of stereoisomers. The cis isomers have the substituents on the same side of the ring, whereas the trans isomers have the substituents on the opposite sides. These stereoisomers exhibit different physical properties and cannot be interconverted without breaking the carbon-carbon bonds.
In cyclohexane, the substituents can occupy different positions generating distinct isomers....
In cyclohexane, the substituents can occupy different positions generating distinct isomers....
14.1K
01:17Linear Circuits
845
A linear circuit is characterized by its output having a direct proportionality to its input, adhering to the linearity property, which encompasses the principles of homogeneity (scaling) and additivity. Homogeneity dictates that when the input, also referred to as the excitation, is multiplied by a constant factor, the output, known as the response, is correspondingly scaled by the same constant factor. For instance, if the current is multiplied by a constant 'k,' the voltage likewise...
845
01:27Drive-Reduction Theory: Push Theory of Motivation
1.2K
Clark Hull's drive-reduction theory, introduced in the 1940s and 1950s and often termed the "push theory" of motivation, provides a framework for understanding how biological and learned drives influence behavior. Hull suggested that motivation originates from the need to alleviate physiological tension caused by unmet biological necessities. The theory proposes that when a basic need, such as hunger or sleep, goes unfulfilled, it creates an internal imbalance. This imbalance, or...
1.2K