Quasigermatranes and their monocyclic analogs with highly electronegative substituents at the germanium atom: A new synthesis strategy

2010 ◽  
Vol 36 (5) ◽  
pp. 623-627 ◽  
Author(s):  
G. S. Samokhin ◽  
D. V. Vrazhnov ◽  
T. A. Kochina ◽  
M. G. Voronkov
2018 ◽  
Vol 6 (4) ◽  
pp. 1751-1771 ◽  
Author(s):  
Abtin Ebadi Amooghin ◽  
Hamidreza Sanaeepur ◽  
Mohammadreza Omidkhah ◽  
Ali Kargari

Organic–inorganic hybrid nanocomposites within polymeric matrices have potential as functional materials for membrane gas separation.


1989 ◽  
Vol 67 (3) ◽  
pp. 411-416 ◽  
Author(s):  
Y. Takahashi ◽  
J. E. Guillet ◽  
M. A. Winnik

A new synthesis of monosubstituted tetraarylporphines is described based upon the soluble polymer supported synthesis strategy. Low molecular weight poly(ethylene glycol) is chloromethylated at both ends. These ends are then used to build up the polymer-bound ether of 5-(4′-hydroxymethyl)-10,15,20-tritolylporphine, which, after purification of the polymer, can be cleaved in high yield with TiCl4. While the method offers useful conveniences, such as the ease of separation and purification of the desired material, the overall yield is low: 100 mg from 40 g of polymer. Oligomerization of the polymer during chloromethylation increases the polymer molecular weight and thereby decreases the number of end groups per gram of polymer. Keywords: porphyrin, tetraaryl, monosubstituted poly(ethylene glycol) oligomerization, polymer-supported synthesis.


2017 ◽  
Vol 5 (2) ◽  
pp. 835-841 ◽  
Author(s):  
H. Z. Zhang ◽  
C. Liu ◽  
D. W. Song ◽  
L. Q. Zhang ◽  
L. J. Bie

A new synthetic strategy (Al-compensation method) for LNCA cathodes is proposed in this paper. As a result, the obtained LNCA electrodes exhibit a more stable layered structure and enhanced electrochemical performances.


2019 ◽  
Vol 6 (1) ◽  
pp. 42-49
Author(s):  
F. Allama ◽  
N. Gherraf ◽  
Y. Nicolas ◽  
T. Toupance ◽  
D. Khatmi

Abstract The present work deals with the synthesis of multichromophores which strongly absorb the solar spectrum to functionalize the nanoparticle oxide semiconductor used in the hybrid cells. At first, we developed a material that forms a chromophore triphenodioxazine. We obtained some triphenodioxazines with high yields up to 70 percent. On the other hand, we have carried out many tests such as UV-Visible, Cyclic voltammetry for our molecules to check their electronic and optical properties. The results confirmed that these chromophores meet the criteria for use in photovoltaic cells. Finally, we have successfully realized photovoltaic cells with triphenodioxazine. The findings were very interesting since the photovoltaic conversion efficiencies ranged from 4.30% to 6.30%. The new synthesis strategy of these chromophores opens a way for the development of organic materials used for photovoltaics.


2011 ◽  
Vol 115 (8) ◽  
pp. 3243-3249 ◽  
Author(s):  
Liguang Xu ◽  
Yingyue Zhu ◽  
Wei Ma ◽  
Wei Chen ◽  
Liqiang Liu ◽  
...  

Synlett ◽  
2021 ◽  
Author(s):  
Zhenliang Pan ◽  
Wankai AN ◽  
Lulu Wu ◽  
Liangxin Fan ◽  
Guoyu Yang ◽  
...  

Rhodanine and its derivatives have been known as privileged structures in pharmacological research because of their wide spectrum of biological activities, but the synthesis method of rhodanine skeleton is limited. In this paper, not only rhodanine skeleton, but also N-aryl rhodanines can be directly prepared via the reaction of thioureas and thioglycolic acid in one step catalyzed by protic acid, which provides a new approach of the synthesis of rhodanine and its derivatives. The developed strategy is straightforward, efficient, atom economical and convenient in good yields.


2015 ◽  
Vol 51 (27) ◽  
pp. 5955-5958 ◽  
Author(s):  
Xuan Kuang ◽  
Yu Ma ◽  
Caiyun Zhang ◽  
Hao Su ◽  
Jine Zhang ◽  
...  

We present a convenient and rapid way to prepare helical CdS nanotubes, with a MOF as the template.


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