scholarly journals Smooth and large scale organometallic complex film by vapor-phase ligand exchange reaction

RSC Advances ◽  
2020 ◽  
Vol 10 (16) ◽  
pp. 9536-9538
Author(s):  
Myeonggeun Choe ◽  
Soyoung Kim ◽  
Hee Cheul Choi

Highly-smooth Mo(CO)4(2,2′-bipy) thin film showing a color gradient depending on the thickness can be obtained by vapor-phase ligand exchange reaction.

2020 ◽  
Vol 33 (2) ◽  
pp. 210-216
Author(s):  
Björn Bastian ◽  
Tim Michaelsen ◽  
Milan Ončák ◽  
Jennifer Meyer ◽  
Roland Wester

2021 ◽  
Author(s):  
Li Zhang ◽  
Hongcen Zheng ◽  
Yonghai Gan ◽  
Bingdang Wu ◽  
Zhihao Chen ◽  
...  

Abstract Controllable synthesis, proper dispersion, and feasible functionalization are crucial requirements for the application of nanomaterials in many scenarios. Here, we report an all-in-one approach for the synthesis and functionalization of gold nanoparticles (AuNPs) with the simplest β-diketone, acetylacetone (AcAc). With this approach, the particle size of the resultant AuNPs was tunable by simply adjusting the light intensity or AcAc dosage. Moreover, owing to the capping role of AcAc, the resultant AuNPs could be stably dispersed in water for a year without obvious change in morphology and photochemical property. Formation of ligand to metal charge transfer complexes was found to play an important role in the redox conversion of Au with AcAc. Meanwhile, the moderate complexation ability enables the surface AcAc on the AuNPs to undergo ligand exchange reactions. With the aid of Ag+, the AuNPs underwent ligand exchange reaction with glutathione and exhibited enhanced photoluminescence (PL) with a maximum of 22-fold increase in PL intensity. The PL response was linear to the concentration of glutathione in the range of 0~500 μM. Such a ligand exchange reaction makes the obtained AuNPs being good imaging probes. To the best of our knowledge, this is the first work on illustrating the roles of AcAc as a multifunctional ligand in fabrication of NPs, which sheds new light on the surface modulation in synthesis of nanomaterials.


1995 ◽  
pp. 123-127 ◽  
Author(s):  
Joo-Eun CHUNG ◽  
Kenichi HAMADA ◽  
Hiromi SAKAI ◽  
Shinji TAKEOICA ◽  
Eishun TSUCHIDA

2014 ◽  
Vol 53 (6) ◽  
pp. 2841-2847 ◽  
Author(s):  
Thi Minh Ha Vuong ◽  
Thanh-Tuan Bui ◽  
Alix Sournia-Saquet ◽  
Alain Moreau ◽  
Kathleen I. Moineau-Chane Ching

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