Synthesis and characterization of poly-Schiff bases with a donor–acceptor structure containing thiophene units as thermoelectric materials

2015 ◽  
Vol 3 (11) ◽  
pp. 2693-2701 ◽  
Author(s):  
Junjie Li ◽  
Chunhua Lai ◽  
Xiongzhi Xiang ◽  
Lei Wang
Keyword(s):  
Schiff Base ◽  
Schiff Bases ◽  
Thermoelectric Materials ◽  
Synthesis And Characterization ◽  
Donor Acceptor ◽  
Te Material ◽  
First Time

A Poly-Schiff base (PSB) with a donor–acceptor structure was successfully synthesized and was blended with different fillers to prepare polymer–inorganic thermoelectric (TE) composites. It is the first time that PSB was treated as a TE material.

scholarly journals Synthesis and Characterization of New Homo- and Heteronuclear Schiff Base Complexes

Proceedings ◽  
2019 ◽  
Vol 29 (1) ◽  
pp. 77
Author(s):  
Spinciu ◽  
Maxim ◽  
Pătrașcu ◽  
Popescu
Keyword(s):  
Schiff Base ◽  
Schiff Bases ◽  
Chemical Elements ◽  
Schiff Base Complexes ◽  
Oxidation States ◽  
Synthesis And Characterization

Schiff bases are the most extensively used versatile ligands, capable of coordinating several chemical elements and stabilizing them in numerous oxidation states. [...]

scholarly journals Synthesis and characterization of novel porphyrin Schiff bases

2008 ◽  
Vol 73 (1) ◽  
pp. 1-6 ◽  
Author(s):  
Lei Wang ◽  
Yaqing Feng ◽  
Jinqiang Xue ◽  
Li Yukun
Keyword(s):  
Schiff Base ◽  
Energy Transfer ◽  
Spectral Data ◽  
Schiff Bases ◽  
Chemical Properties ◽  
Synthesis And Characterization ◽  
Intramolecular Energy Transfer ◽  
Porphyrin Moiety

Novel porphyrin Schiff bases were synthesized by a simple Schiff base condensation in refluxing toluene between 5-(4-aminophenyl)-10,15,20-triphe?nylporphyrin (ATTP) 3 and styryl aldehydes 4-6 or p-halobenzaldehydes 7-9. The newly synthesized porphyrin Schiff bases were characterized on the basis of their chemical properties and spectral data. A good intramolecular energy transfer from the styryl unit to the porphyrin moiety was found.

Molecular Second-Order Optical Nonlinearity of Push-Pull Bisdithiolene Nickel Complexes

1997 ◽  
Vol 488 ◽  
Author(s):  
Chin-Ti Chen ◽  
Sish-Yuan Liao ◽  
Kuan-Jiuh Lin ◽  
Long-Li Lai
Keyword(s):  
Nonlinear Optical ◽  
Nickel Complexes ◽  
Optical Nonlinearity ◽  
Second Order ◽  
Synthesis And Characterization ◽  
Crystal Data ◽  
X Ray ◽  
Donor Acceptor ◽  
First Time

AbstractThe synthesis and characterization of donor-acceptor substituted unsymmetrical bisdithiolene nickel complexes are described for the first time. X-ray single crystal data indicate that the complexes exist with two types of bonding structures, namely, the π-localized and π-delocalized structures. The relation between bonding structures and the molecular second-order nonlinear optical properties, i.e., solvatochromism, dipole moment, and molecular first hyperpolarizability is discussed.

Synthesis and Characterization of Binuclear Indium(Ⅲ) Complexes with Bis-Schiff Bases Derived from Benzidine or its Derivatives

2011 ◽  
Vol 197-198 ◽  
pp. 627-630 ◽  
Author(s):  
Xu Dong Jin ◽  
Yue Hong Jin ◽  
Zhi Gang Cui ◽  
Yuan Yuan Li ◽  
Hai Bo Wang
Keyword(s):  
Schiff Base ◽  
Infrared Spectrum ◽  
Schiff Bases ◽  
Schiff Base Ligand ◽  
Molar Conductance ◽  
Synthesis And Characterization ◽  
Gravimetric Analysis ◽  
Thermal Gravimetric ◽  
Indium Chloride

By reactions of indium chloride tetrahydrate with three bis-Schiff bases ligands (N, N’-bis (3-methoxy-salicylidene)benzidine = L1; N, N’-bis (3-methoxysalicylidene)-2, 2’-dimethyl- benzidine =L2; N, N’-bis (3-methoxysalicylidene)-o- dianisidine = L3), respectively, three novel corresponding complexes 1~3 were obtained. The complexes were characterized by infrared spectrum, molar conductance, elemental analysis and thermal gravimetric analysis. The chemical formulae of the complexes 1~3 were determined as (InCl3)2Ln (1, n = 1; 2, n = 2; 3, n = 3). All the complexes are constructed with binuclear indium ions. Every complex consists of two central In (III) ions, one corresponding bis-Schiff base ligand and six Cl-.

Synthesis and Characterization of Some New Esters Containing Heterocyclic and Derived From Azo Dyes

2019 ◽  
Vol 9 (02) ◽  
Author(s):  
Zena G. Alrecabi ◽  
Zainab Amer ◽  
Naeemah Al-Lami
Keyword(s):  
Schiff Base ◽  
13C Nmr ◽  
Azo Dyes ◽  
Spectral Methods ◽  
Anthranilic Acid ◽  
Heterocyclic Compounds ◽  
Synthesis And Characterization ◽  
Cooh Group ◽  
Molecular Weights

This study including prepared new colored esters containing heterocyclic with high molecular weights. In the first part of work we synthesized azo dyes [1,2] from the reaction p-toluidine with β-naphthol and o-nitro phenol, thin we synthesized Schiff bases [3,4] by the reaction anthranilic acid with benzaldehyde and dimethyl benzaldehyde. The reaction azo dyes (contain OH group) with Schiff base (contain COOH group) these led to produce the new colored esters [A1-A4]. The second part of work was modification the (C=N-) group in esters to heterocyclic compounds by reacting with phenyl iso cyanide to produce new β-lactam [B1-B4] and with anthranilic acid to get new hydroquinazoline [C1-C4]. All these compounds were characterized by physical properties and spectral methods FTIR, 1H-NMR and 13C-NMR.

SYNTHESIS AND CHARACTERIZATION OF SOME SCHIFF BASES BASED ON 1, 8-DIAMINOOCTANE FOR EVALUATION AS CORROSION INHIBITORS

2018 ◽  
Vol 42 (1) ◽  
pp. 1-29
Author(s):  
Hashem, A. I. ◽  
Ismaeel, H. S. ◽  
Dawood, E. A. ◽  
and El-Mokadem, T. H.
Keyword(s):  
Schiff Bases ◽  
Corrosion Inhibitors ◽  
Synthesis And Characterization
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