scholarly journals 2,6-Di(thiophenyl)-1,5-dihydrodipyrrolopyrazine (DT-DPP) structural isomers as donor–acceptor–donor molecules and their optoelectronic investigation

RSC Advances ◽  
2017 ◽  
Vol 7 (62) ◽  
pp. 39228-39236 ◽  
Author(s):  
Puttavva Meti ◽  
Young-Dae Gong
Keyword(s):  
Synthesis And Characterization ◽  
Coupling Reactions ◽  
Structural Isomers ◽  
Donor Acceptor ◽  
Optoelectronic Applications

We report the synthesis and characterization of two new D–A–D molecules via Pd catalyzed C–C and C–N coupling reactions. This illustrates the potential of DT-DPP for promising optoelectronic applications.

Synthesis and Characterization of a New Donor–Acceptor Conjugated Polymer and Polymer∕Ag Nanocomposites

2011 ◽  
Author(s):  
M. G. Murali ◽  
D. Udayakumar ◽  
P. Predeep ◽  
Mrinal Thakur ◽  
M. K. Ravi Varma
Keyword(s):  
Conjugated Polymer ◽  
Synthesis And Characterization ◽  
Donor Acceptor

Synthesis and characterization of γ-Fe2O3@SiO2–(CH2)3–PDTC–Pd magnetic nanoparticles: a new and highly active catalyst for the Heck/Sonogashira coupling reactions

2019 ◽  
Vol 43 (23) ◽  
pp. 8930-8938 ◽  
Author(s):  
Zahra Tashrifi ◽  
Saeed Bahadorikhalili ◽  
Hossein Lijan ◽  
Samira Ansari ◽  
Haleh Hamedifar ◽  
...  
Keyword(s):  
Magnetic Nanoparticles ◽  
Active Catalyst ◽  
Synthesis And Characterization ◽  
Coupling Reactions ◽  
Sonogashira Coupling ◽  
Highly Active ◽  
Novel Catalyst

A novel catalyst is synthesized based on the immobilization of palladium on γ-Fe2O3@SiO2–(CH2)3–PDTC nanoparticles and is used as a highly active catalyst for the Heck/Sonogashira coupling reactions.

scholarly journals Stacking Control by Molecular Symmetry of Sterically Protected Phthalocyanines

Molecules ◽  
2020 ◽  
Vol 25 (23) ◽  
pp. 5552
Author(s):  
Ryota Kudo ◽  
Masahiro Sonobe ◽  
Yoshiaki Chino ◽  
Yu Kitazawa ◽  
Mutsumi Kimura
Keyword(s):  
Lamellar Structure ◽  
Synthesis And Characterization ◽  
Molecular Symmetry ◽  
X Ray Diffraction ◽  
Melting Points ◽  
Scanning Calorimetry ◽  
Structural Isomers ◽  
X Ray ◽  
Temperature Controlled

The synthesis and characterization of two phthalocyanine (Pc) structural isomers, 1 and 2, in which four 2,6-di(hexyloxy)phenyl units were attached directly to the 1,8,15,22- or 1,4,15,18-positions of the Pc rings, are described. Both Pcs 1 and 2 exhibited low melting points, i.e., 120 and 130 °C respectively, due to the reduction in intermolecular π-π interaction among the Pc rings caused by the steric hindrance of 2,6-dihexyloxybenzene units. The thermal behaviors were investigated with temperature-controlled polarizing optical microscopy, differential scanning calorimetry, powder X-ray diffraction, and absorption spectral analyses. Pc 1, having C4h molecular symmetry, organized into a lamellar structure containing lateral assemblies of Pc rings. In contrast, the other Pc 2 revealed the formation of metastable crystalline phases, including disordered stacks of Pcs due to rapid cooling from a melted liquid.

Synthesis and characterization of a novel unsymmetrical metal-free phthalocyanine with donor-acceptor substituents

1994 ◽  
Vol 31 (4) ◽  
pp. 1017-1020 ◽  
Author(s):  
Yunqi Liu ◽  
Daoben Zhu ◽  
Tatsuo Wada ◽  
Akira Yamada ◽  
Hiroyuki Sasabe
Keyword(s):  
Synthesis And Characterization ◽  
Metal Free ◽  
Donor Acceptor

Lanthanum loaded CuO nanoparticles: synthesis and characterization of a recyclable catalyst for the synthesis of 1,4-disubstituted 1,2,3-triazoles and propargylamines

RSC Advances ◽  
2015 ◽  
Vol 5 (70) ◽  
pp. 56507-56517 ◽  
Author(s):  
R. Sasikala ◽  
S. Kutti Rani ◽  
D. Easwaramoorthy ◽  
K. Karthikeyan
Keyword(s):  
Reaction Time ◽  
Cuo Nanoparticles ◽  
Recyclable Catalyst ◽  
Synthesis And Characterization ◽  
Coupling Reactions ◽  
Short Reaction Time ◽  
Cuo Nps ◽  
Nanoparticles Synthesis

A click and three component A3 coupling reactions were achieved by lanthanum loaded CuO NPs under ultrasonication. 1,4-Disubstituted 1,2,3-triazoles and propargylamines were synthesized in a short reaction time with high regioselectivity and yields.

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