Characterization, supramolecular assembly, and nanostructures of thiophene dendrimers

Journal of the American Chemical Society
Chuanjun XiaWilliam Nonidez

Abstract

We report the synthesis and characterization of dendritic thiophene derivatives with their unique supramolecular assembly into 2-D crystals, nanowires, and nanoparticle aggregates. The structure and size of the dendrons and dendrimers have been confirmed with various techniques, such as NMR, SEC, and MALDI-TOF-MS. The mass values were consistent with the mass observed by MALDI-TOF-MS, whereas SEC measurements also gave useful information on the hydrodynamic volume of the individual dendrimers. The interesting electrooptical properties were highlighted by very broad absorption spectra and narrower fluorescence consistent with their electrochemical behavior. The self-organization of the dendrimers on the solid substrate is dependent on the nature of the substrate, preparation methods, and the molecule-molecule and molecule-substrate interactions. Thus, 14T-1 and 30T both formed globular aggregates on mica surface, while 14T-1 also formed nanowires on graphite surface. On the other hand, the larger 30T was observed to form 2-D crystalline structures. By varying the alkyl chain length attached to 14T-1, we were also able to obtain 2-D crystals on graphite. This showed that the different symmetry of packing for 30T and 14T-1 is also...Continue Reading

Citations

Jun 29, 2012·The Journal of Organic Chemistry·Caroline HadadJulián Rodríguez-López
Jul 8, 2011·Chemical Communications : Chem Comm·Suxiang DengRigoberto C Advincula
Dec 23, 2014·Soft Matter·Esther Córdova-MateoCarlos Alemán
Aug 20, 2016·Physical Chemistry Chemical Physics : PCCP·Juan TorrasCarlos Alemán
Jan 31, 2012·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Esther Córdova-MateoCarlos Alemán
Dec 3, 2014·Macromolecular Rapid Communications·Martin ScheubleSabine Ludwigs
Nov 18, 2006·Angewandte Chemie·Tomás Torroba, María García-Valverde
Nov 30, 2007·Chemistry : a European Journal·Tiziana BenincoriFrancesco Sannicolò
Nov 11, 2008·Chemistry : a European Journal·K R Justin ThomasChou Pi Tai
Jun 6, 2006·Dalton Transactions : an International Journal of Inorganic Chemistry·Rigoberto C Advincula
Aug 16, 2011·Macromolecular Rapid Communications·Suxiang Deng, Rigoberto C Advincula
Jul 10, 2017·The Journal of Chemical Physics·M BorówkoT Staszewski
May 7, 2011·Chemistry : a European Journal·Mutsumi KimuraHirofusa Shirai
Feb 11, 2011·Chemical Record : an Official Publication of the Chemical Society of Japan ... [et Al.]·Juan Casado, Juan T López Navarrete
Jan 24, 2015·Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics·M Borówko, W Rżysko
Feb 21, 2009·Chemical Reviews·Andrew C GrimsdaleAndrew B Holmes
Mar 12, 2010·The Journal of Physical Chemistry. a·Muhammet E KöseDavid Ginley
May 7, 2009·Langmuir : the ACS Journal of Surfaces and Colloids·Frank OstendorfMichael Reichling
Nov 30, 2007·The Journal of Physical Chemistry. a·Guda RamakrishnaTheodore Goodson
May 1, 2009·Langmuir : the ACS Journal of Surfaces and Colloids·Ray GunawidjajaVladimir V Tsukruk
Apr 14, 2006·The Journal of Physical Chemistry. B·Xiaobo SunDaoben Zhu
Dec 18, 2008·The Journal of Organic Chemistry·Angelica L P CornacchioNathan D Jones
Sep 22, 2009·Organic Letters·Michael MastalerzPeter Bäuerle
Oct 12, 2010·The Journal of Physical Chemistry. a·Radosław MichalskiAndrzej Marcinek
Dec 2, 2010·Organic Letters·Ganapathy BalajiSuresh Valiyaveettil

❮ Previous
Next ❯

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.