Ligand Exchange Processes on Solvated Beryllium Cations V. Water Exchange on [Be(X)(H2O)3]+ (X: H-,F-, Cl-, Br-, OH-, CN-, NCNCN-)‡

2011 ◽  
Vol 637 (5) ◽  
pp. 515-522 ◽  
Author(s):  
Ana Budimir ◽  
Markus Walther ◽  
Ralph Puchta ◽  
Rudi van Eldik
Keyword(s):  
Ligand Exchange ◽  
Water Exchange ◽  
Exchange Processes

Ligand‐Exchange Processes on Solvated Beryllium Cations. Part III

2008 ◽  
Vol 91 (6) ◽  
pp. 1063-1071 ◽  
Author(s):  
Ralph Puchta ◽  
Rudi van Eldik
Keyword(s):  
Ligand Exchange ◽  
Exchange Processes

Photochemistry of Anthracene-Appended Cobalt(III) Cyclam Complexes

2008 ◽  
Vol 61 (8) ◽  
pp. 585 ◽  
Author(s):  
Simon Boyd ◽  
Kenneth P. Ghiggino ◽  
W. David McFadyen
Keyword(s):  
Energy Transfer ◽  
Ligand Exchange ◽  
Large Excess ◽  
Release Process ◽  
Efficient Energy Transfer ◽  
Ligand Exchange Reaction ◽  
Efficient Energy ◽  
Exchange Processes ◽  
Cyclam Complexes ◽  
In Cis

The photochemistry of two anthracene-appended cobalt(iii) cyclam complexes is explored with a view to demonstrate a photoactivated ligand release process. The ligand exchange processes that occur in the complexes cis-[CoL(NO2)(ONO)]+ and trans-[CoL(NO2)(ONO)]+ in which L = 6-(anthracen-9-ylmethyl)-1,4,8,11-tetraazacyclotetradecane were monitored upon illumination of the anthracenyl chromophore at 360 nm in the presence of a large excess of thiocyanate. The trans-[CoL(NO2)(ONO)]+ complex underwent a ligand exchange reaction in the absence of light and displayed an enhancement of the reaction upon illumination. In contrast the cis-[CoL(NO2)(ONO)]+ complex was stable in the dark but displayed a significant quantum yield of photoactivated ligand release (Φ = 0.19). It is proposed that in cis-[CoL(NO2)(ONO)]+ the photoexcited anthracenyl chromophore undergoes efficient energy transfer to the cobalt(iii) cyclam before ligand exchange. Complexes based on the anthracenylcyclam–cobalt(iii) framework may be potentially useful candidates as photoactivated ligand release systems.

A balance of redox and ligand-exchange processes in the reaction of H2[OsCl6] with thiourea: Isolation and characterization of a novel osmium complex [(NH2)2CSSC(NH2)2]2[OsIVCl6]Cl2·3H2O

2019 ◽  
Vol 484 ◽  
pp. 352-356
Author(s):  
Olga V. Rudnitskaya ◽  
Ekaterina V. Dobrokhotova ◽  
Ekaterina K. Kultyshkina ◽  
Pavel V. Dorovatovskii ◽  
Vladimir A. Lazarenko ◽  
...  
Keyword(s):  
Ligand Exchange ◽  
Isolation And Characterization ◽  
Exchange Processes

Ligand exchange processes in zirconocene dichloride–trimethylaluminum bimetallic systems and their catalytic properties in reaction with alkenes

2018 ◽  
Vol 47 (47) ◽  
pp. 16918-16937 ◽  
Author(s):  
Lyudmila V. Parfenova ◽  
Pavel V. Kovyazin ◽  
Vener Z. Gabdrakhmanov ◽  
Galina P. Istomina ◽  
Pavel V. Ivchenko ◽  
...  
Keyword(s):  
Ligand Exchange ◽  
Catalytic Properties ◽  
Zirconocene Dichloride ◽  
Bimetallic Systems ◽  
Exchange Processes ◽  
System L

The exchange processes in the system L2ZrCl2–(AlMe3)2 and its reactivity towards the alkene were studied.

scholarly journals Recent Research Progress in Surface Ligand Exchange of PbS Quantum Dots for Solar Cell Application

2020 ◽  
Vol 10 (3) ◽  
pp. 975 ◽  
Author(s):  
Hyung Ryul You ◽  
Jin Young Park ◽  
Duck Hoon Lee ◽  
Younghoon Kim ◽  
Jongmin Choi
Keyword(s):  
Quantum Dots ◽  
Solid State ◽  
Ligand Exchange ◽  
Exchange Process ◽  
Surface States ◽  
Solution Phase ◽  
Research Progress ◽  
Solar Cell Application ◽  
Exchange Processes ◽  
Particle Size And Shape

Colloidal quantum dots (CQDs) are considered as next-generation semiconductors owing to their tunable optical and electrical properties depending on their particle size and shape. The characteristics of CQDs are mainly governed by their surface chemistry, and the ligand exchange process plays a crucial role in determining their surface states. Worldwide studies toward the realization of high-quality quantum dots have led to advances in ligand exchange methods, and these procedures are usually carried out in either solid-state or solution-phase. In this article, we review recent advances in solid-state and solution-phase ligand exchange processes that enhance the performance and stability of lead sulfide (PbS) CQD solar cells, including infrared (IR) CQD photovoltaics.

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