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Title: Linking design and properties of purine-based donor–acceptor chromophores as optoelectronic materials

Journal Article · · Journal of Materials Chemistry C
DOI:https://doi.org/10.1039/c7tc01835e· OSTI ID:1649656
 [1];  [1];  [2];  [3]; ORCiD logo [4]; ORCiD logo [3]; ORCiD logo [1]; ORCiD logo [5]
  1. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Chemistry
  2. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Chemical and Biomolecular Engineering
  3. Univ. of North Carolina, Charlotte, NC (United States). Dept. of Chemistry
  4. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Electrical and Electronics Systems Research Division
  5. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Chemistry and Dept. of Chemical and Biomolecular Engineering

Creating new building blocks for donor–acceptor conjugated systems is an important task for continued development of materials for organic electronics. Here, purines were introduced into small-molecule π-conjugated systems via Stille cross-coupling using stannylated derivatives of benzodithiophene, thiophene, or dithienylbenzothiadiazole to generate a series of “purine–π–purine” chromophores having high thermal stability, long excited-state lifetimes, and high quantum yields. Photophysical and electrochemical property characterization indicate that depending on the choice of a conjugated bridging unit, purines behave as either an electron-donating or an electron-accepting unit in these small-molecule donor–acceptor chromophores. Specifically, while purine chromophores do not exhibit charge transfer character when linked to a thiophene unit, purinyl units act as a weak acceptor when coupled with benzodithiophene and as a weak donor when coupled with dithienylbenzothiadiazole. In addition to fundamental insights into the molecular design of purine-based chromophores and their charge-transfer character, the results and synthetic tailorability of purines suggest that they may be compelling building blocks in conjugated materials for optical and electronic devices and sensors.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Laboratory Directed Research and Development (LDRD) Program; US Army Research Office (ARO)
DOE Contract Number:
AC05-00OR22725; W911NF-14-1-0153
OSTI ID:
1649656
Journal Information:
Journal of Materials Chemistry C, Vol. 5, Issue 27; ISSN 2050-7526
Publisher:
Royal Society of Chemistry
Country of Publication:
United States
Language:
English

References (34)

The Suzuki-Miyaura Cross-Coupling Reactionsof 2-, 6- or 8-Halopurines with Boronic Acids Leading to 2-, 6- or 8-Aryl- and -Alkenylpurine Derivatives journal January 2001
Effects of Stereoisomerism on the Crystallization Behavior and Optoelectrical Properties of Conjugated Molecules journal April 2013
Synthesis, Photophysical Behavior, and Electronic Structure of Push−Pull Purines journal January 2009
Molecular rearrangement at charged states: Intrinsic effects upon photo and electroluminescence journal February 2015
Blue-Violet Electroluminescence from a Highly Fluorescent Purine journal June 2010
It Takes More Than an Imine: The Role of the Central Atom on the Electron-Accepting Ability of Benzotriazole and Benzothiadiazole Oligomers journal January 2012
Highly fluorescent donor–acceptor purines journal January 2007
Stille Polycondensation for Synthesis of Functional Materials journal March 2011
Organic light emitting diodes: Energy saving lighting technology—A review journal June 2012
Supramolecular polymeric micelles as high performance electrochemical materials journal January 2015
Synthesis, Optical Properties, and Electronic Structures of Nucleobase-Containing π-Conjugated Oligomers journal January 2015
Efficient intersystem crossing using singly halogenated carbomethoxyphenyl porphyrins measured using delayed fluorescence, chemical quenching, and singlet oxygen emission journal January 2015
Electronic properties, hydrogen bonding, stacking, and cation binding of DNA and RNA bases journal January 2001
Ultraviolet-violet electroluminescence from highly fluorescent purines journal January 2013
The Influence of Solubilizing Chain Stereochemistry on Small Molecule Photovoltaics journal July 2014
Principles of Fluorescence Spectroscopy book January 2006
Conjugated Polymer-Based Chemical Sensors journal July 2000
Color Control in π-Conjugated Organic Polymers for Use in Electrochromic Devices journal January 2010
Synthesis of Main Chain Purine-Based Copolymers and Effects of Monomer Design on Thermal and Optical Properties journal May 2016
Synthesis and Photovoltaic Properties of Copolymers from Benzodithiophene and Thiazole journal September 2010
Recent Advances in Bulk Heterojunction Polymer Solar Cells journal August 2015
Rational Design of High Performance Conjugated Polymers for Organic Solar Cells journal January 2012
The Suzuki-Miyaura Cross-Coupling Reactions of 6-Halopurines with Boronic Acids Leading to 6-Aryl- and 6-Alkenylpurines journal July 1999
Synthesis and characterization of novel semiconducting polymers containing pyrimidine journal January 2013
Novel red-emitting fluorene-based copolymers journal August 2002
Benzothiadiazole and its π-extended, heteroannulated derivatives: useful acceptor building blocks for high-performance donor–acceptor polymers in organic electronics journal January 2016
Soluble Narrow Band Gap and Blue Propylenedioxythiophene-Cyanovinylene Polymers as Multifunctional Materials for Photovoltaic and Electrochromic Applications journal October 2006
Push-Pull-Type Purine Nucleoside-Based Fluorescent Sensors for the Selective Detection of Pd 2+ in Aqueous Buffer: Push-Pull-Type Purine Nucleoside-Based Fluorescent Sensors journal March 2014
Thieno[3,4- b ]pyrazine-based oligothiophenes: simple models of donor–acceptor polymeric materials journal January 2014
Intramolecular Charge Transfer Assisted by Conformational Changes in the Excited State of Fluorene-dibenzothiophene- S,S -dioxide Co-oligomers journal October 2006
25th Anniversary Article: Organic Field-Effect Transistors: The Path Beyond Amorphous Silicon journal January 2014
New bioinspired hole injection/transport materials for highly efficient solution-processed phosphorescent organic light-emitting diodes journal April 2015
π-Extended Thiadiazoles Fused with Thienopyrrole or Indole Moieties: Synthesis, Structures, and Properties journal August 2012
Small molecule semiconductors for high-efficiency organic photovoltaics journal January 2012

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