Towards the Synthesis of Mono- and Bi-Functional Amphiphilic Oligothiophenes: Organic Materials for Opto-Electronic Applications

1999 ◽  
Vol 561 ◽  
Author(s):  
R.C. Advincula ◽  
S. Inaoka ◽  
M. Park ◽  
D. Phillips ◽  
D.M. Shin
Keyword(s):  
Physical Properties ◽  
Ultrathin Films ◽  
Organic Materials ◽  
Photophysical Properties ◽  
Electronic Devices ◽  
Synthesis And Characterization ◽  
Important Class ◽  
Maldi Tof Ms ◽  
Tof Ms

ABSTRACTIn this report, we describe our initial synthesis and characterization of mono-functional and bi-functional dibromoalkyl oligothiophenes to achieve amphiphilicity and telechelic functionality. Oligothiophenes are an important class of organic materials for opto-electronic devices and display applications. We have mono-functionalized oligothiophenes by the synthesis of a quinquethiophene bromoalkyl derivative. A bi-functional sexithiophene was derived primarily by the symmetrical coupling of terthiophene derivatives. Both were synthesized using Grignard coupling and lithiation reaction methodologies. UV-Vis, IR, NMR, MALDI-TOF-MS, and DSC confirmed the structure and physical properties of the oligomers. In addition, we have also synthesized an amphiphilic diamine derivative from the reaction of hexamethylenediamine with a bromoalkyl terthiophene derivative. Using photoluminescence, the photophysical properties of the oligomers were found to be that of typical oligothiophenes. Processing as ultrathin films for devices is currently being investigated.

Synthesis and characterization of polycarbodiimides by MALDI-TOF MS and NMR spectroscopy: kinetic and mechanism study

2017 ◽  
Vol 75 (6) ◽  
pp. 2657-2670
Author(s):  
Albert Morell Garcia ◽  
Francisco Medina Cabello ◽  
Antonio Torrelles Nogués
Keyword(s):  
Nmr Spectroscopy ◽  
Synthesis And Characterization ◽  
Mechanism Study ◽  
Maldi Tof Ms ◽  
Maldi Tof ◽  
Tof Ms

Synthesis and characterization of dendritic platinum bisferrocenylacetylide complexes

2012 ◽  
Vol 90 (3) ◽  
pp. 278-289
Author(s):  
Qing Han ◽  
Li-Jun Chen ◽  
Hai-Bo Yang ◽  
Quan-Jie Li ◽  
Jiuming He ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Diffusion Coefficient ◽  
Coupling Reaction ◽  
Synthesis And Characterization ◽  
Electrochemical Studies ◽  
Maldi Tof Ms ◽  
Electrochemically Active ◽  
Key Steps ◽  
Tof Ms

A series of new dendritic platinum bisferrocenylacetylide complexes have been synthesized utilizing the coupling reaction of trans-Pt complexes with C–H bonds in alkynes as key steps. These new bimetallic dendrimers were fully characterized by multinuclear NMR (1H, 13C, and 31P) and mass spectrometry (MALDI-TOF-MS and CSI-TOF-MS). Electrochemical studies of these complexes were carried out and revealed that all of the redox moieties are stable, independent, and electrochemically active. In addition, all metallodendrimers show one-electron reaction responses, and the increased sizes of these complexes did not exhibit a dramatic influence on the diffusion coefficient.

Synthesis and Characterization of a Novel Tetra-Substituted Zinc Phthalocyanine Compound

2012 ◽  
Vol 554-556 ◽  
pp. 640-643
Author(s):  
Wei Zhang ◽  
Wu Biao Duan ◽  
Zhen Xin Wang
Keyword(s):  
1H Nmr ◽  
Satisfactory Result ◽  
Nmr Spectra ◽  
Zinc Phthalocyanine ◽  
Synthesis And Characterization ◽  
Maldi Tof Ms ◽  
Step Procedure ◽  
Uv Visible ◽  
Tof Ms

A novel tetra-substituted zinc phthalocyanine 4 [ZnPcNHCOCH2(PEG)5NH2] was synthesized from 4-nitrophthalonitrile by using a four-step procedure. The compound has been characterized by UV–Visible, fluorescence, IR, 1H NMR spectra and MALDI-TOF MS, and the satisfactory result has been obtained. Most importantly, this compound is soluble in many solvents including CHCl3, CH2Cl2, DMF, DMSO, THF and water.

Characterization of polyethers using different methods: SFC, LAC and SEC with different detectors, and MALDI-TOF-MS

1996 ◽  
Vol 110 (1) ◽  
pp. 231-240 ◽  
Author(s):  
Bernd Trathnigg ◽  
Bernhard Maier ◽  
Günther Schulz ◽  
Ralph-Peter Krüger ◽  
Ulrich Just
Keyword(s):  
Maldi Tof Ms ◽  
Maldi Tof ◽  
Tof Ms

Synthesis and characterization of poly(pyrrole-co-2-nitrocinnamaldehyde) (PPNC), a new copolymer for solar cells applications

2019 ◽  
Vol 28 (4) ◽  
pp. 265-272 ◽  
Author(s):  
Hamou Gherras ◽  
Ahmed Yahiaoui ◽  
Aicha Hachemaoui ◽  
Abdelkader Belfedal ◽  
Abdelkader Dehbi ◽  
...  
Keyword(s):  
Proton Nuclear Magnetic Resonance ◽  
Synthesis And Characterization ◽  
Important Class ◽  
Visible Spectroscopy ◽  
Electrical Stability ◽  
Efficient Catalyst ◽  
Heterocyclic Polymers ◽  
Conjugated Copolymer ◽  
Aromatic Heterocyclic

The use of conductive polymers as a substitute for metallic conductors and semiconductors has attracted much attention in the literature. In particular, aromatic heterocyclic polymers constitute an important class since they possess chemical and electrical stability in both the oxidized (doped) and neutral (undoped) state. A series of poly(pyrrole- co-2-nitrocinnamaldehyde) were obtained via the condensation of pyrrole and 2-nitrocinnamaldehyde in chloroform using acid exchanged montmorillonite clay called maghnite-H+ as an efficient catalyst. The conjugated copolymer was characterized using proton nuclear magnetic resonance, ultraviolet–visible spectroscopy, Fourier transform infrared spectroscopy, and scanning electron microscopy.

Synthesis and characterization of a fluorinated poly(imide-siloxane) copolymer: a study of physical properties and morphology

Polymer ◽  
1993 ◽  
Vol 34 (9) ◽  
pp. 1823-1832 ◽  
Author(s):  
John J. Fitzgerald ◽  
Scott E. Tunney ◽  
Michael R. Landry
Keyword(s):  
Physical Properties ◽  
Synthesis And Characterization ◽  
Poly Imide

Multidimensional Characterization of α,ω-Telechelic Poly(ε-caprolactone)s via Online Coupling of 2D Chromatographic Methods (LC/SEC) and ESI-TOF/MALDI-TOF-MS

2012 ◽  
Vol 45 (24) ◽  
pp. 9779-9790 ◽  
Author(s):  
Haitham Barqawi ◽  
Elena Ostas ◽  
Bo Liu ◽  
Jean-François Carpentier ◽  
Wolfgang H. Binder
Keyword(s):  
Maldi Tof Ms ◽  
Chromatographic Methods ◽  
Maldi Tof ◽  
Tof Ms

scholarly journals Synthesis and Characterization of a Multifunctional Conjugated Polymer

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
Emerson C. G. Campos ◽  
Cristiano Zanlorenzi ◽  
Bruno F. Nowacki ◽  
Gabriela M. Miranda ◽  
Denis A. Turchetti ◽  
...  
Keyword(s):  
Conjugated Polymer ◽  
Molar Mass ◽  
Photophysical Properties ◽  
Gel Permeation Chromatography ◽  
Thermal Characterization ◽  
Polymer Structure ◽  
Synthesis And Characterization ◽  
Metallic Ions ◽  
Scanning Calorimetry

This work reports the synthesis and characterization of a conjugated polymer based on fluorene and terpyridine, namely, poly[(9,9-bis(3-((S)-2-methylbutylpropanoate))fluorene-alt-6,6′-(2,2′:6′,2′′-terpyridin-6-yl)] (LaPPS71). The structure was characterized by 1H and 13C nuclear magnetic resonance (NMR) and Fourier-transform infrared (FTIR) spectroscopy. The molar mass was measured by gel permeation chromatography (GPC). As thermal characterization, the glass transition temperature (Tg) was measured by differential scanning calorimetry (DSC). The polymer structure contains two sites capable of complexation with metallic ions, affording the possibility of obtainment of independent or electronically coupled properties, depending on the complexation site. The photophysical properties were fully explored in solution and solid state, presenting ideal results for the preparation of various metallopolymers, in addition to potential application as a metamaterial, due to the presence of the chiral center in the side chains of the polymer.

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