Pentacenequinone derivatives for preparation of gold nanoparticles: facile synthesis and catalytic application

2014 ◽  
Vol 2 (22) ◽  
pp. 8369-8375 ◽  
Author(s):  
Kamaldeep Sharma nee Kamaldeep ◽  
Sandeep Kaur ◽  
Vandana Bhalla ◽  
Manoj Kumar ◽  
Ankush Gupta

We have designed and synthesized pentacenequinone/pentacenequinodimethane derivatives 3, 4 and 6 having nitrile groups using Suzuki–Miyaura coupling and Knoevenagel condensation protocols.

Nanomaterials ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1995
Author(s):  
Yunjia Wang ◽  
Shunxiang Liu ◽  
Feng Zhu ◽  
Yiyu Gan ◽  
Qiao Wen

In recent years, the transition metal carbonitrides(MXenes) have been widely applied to photoelectric field, and better performance of these applications was achieved via MXene complex structures. In our work, we proposed a MXene core-shell nanosheet composed of a Ti2C (MXene) phase and gold nanoparticles, and applied it to mode-locked and single-frequency fiber laser applications. The optoelectronic results suggested that the performances of these two applications were both improved when MXene core-shell nanosheets were applied. As a result, we obtained a mode-locking operation with 670 fs pulses, and the threshold pump power reached to as low as 20 mW. Besides, a single-frequency laser with the narrowest linewidth of ~1 kHz is also demonstrated experimentally. Our research work proved that MXene core-shell nanosheets could be used as saturable absorbers (SAs) to promote versatile photonic applications.


2009 ◽  
Vol 133 (1-2) ◽  
pp. 1-7 ◽  
Author(s):  
Kuan Soo Shin ◽  
Jeong-Yong Choi ◽  
Chan Seok Park ◽  
Hee Jin Jang ◽  
Kwan Kim

2015 ◽  
Vol 58 (3) ◽  
pp. 467-472 ◽  
Author(s):  
Ji Xiang ◽  
Hanbao Chong ◽  
Jia Tang ◽  
Li Feng ◽  
Bin Zhou ◽  
...  

2011 ◽  
Vol 125 (3) ◽  
pp. 518-521 ◽  
Author(s):  
Wei Li ◽  
Xin Li ◽  
Hui Su ◽  
Shiju Zhao ◽  
Yanyun Li ◽  
...  

2012 ◽  
Vol 90 (5) ◽  
pp. 450-463 ◽  
Author(s):  
David I. Magee ◽  
Same Ratshonka ◽  
Jessica McConaghy ◽  
Maggie Hood

The synthesis of a large number of β- and β,β-substituted keto esters was successful by the use of the Knoevenagel condensation reaction. The stereoselectivity of these reactions was improved by alteration of various substituent groups. Although there were few examples of complete Z selectivity, the use of tert-butyl acetoacetate with either aromatic or aliphatic aldehydes afforded Z selectivity. The selective reductions of these substituted keto esters was successfully achieved by using a combination of NaBH4 and CeCl3·7H2O or Yb(OTf)3, which allowed a facile synthesis of a large number of stereochemically pure substituted Morita–Baylis–Hillman adducts, including β,β-substituted adducts.


2018 ◽  
Vol 211 ◽  
pp. 76-80 ◽  
Author(s):  
Yue Su ◽  
Xiang Fang ◽  
Jun Zhou ◽  
Yizhen Bian ◽  
Xueyan Yang ◽  
...  

2014 ◽  
Vol 55 (18) ◽  
pp. 2908-2911 ◽  
Author(s):  
Firouz Matloubi Moghaddam ◽  
Zohreh Mirjafary ◽  
Marjan Jebeli Javan ◽  
Sara Motamen ◽  
Hamid Saeidian

Sign in / Sign up

Export Citation Format

Share Document