Dalton Transactions Blog

Walter Baratta and colleagues describe the first examples of osmium catalysts used for the racemization and deuteration of alcohols. The group found that diphosphine based pincer complexes based on ruthenium and osmium are are efficient catalysts for the racemization of secondary alcohols and also efficiently catalyze the deuteration of both primary and secondary alcohols.

Read their HOT article to find out more. This article is free to read for four weeks.

Pincer Ru and Os complexes as efficient catalysts for racemization and deuteration of alcohols
Gianluca Bossi, Elisabetta Putignano, Pierluigi Rigo and Walter Baratta
Dalton Trans., 2011, Advance Article DOI: 10.1039/C1DT10498E

This paper will feature in the forthcoming Pincers themed issue appearing soon – guest editors Professors Gerard van Koten and Bert Klein Gebbink. Look out for the issue when it is published later this summer!

Gerard van Koten and colleagues test a synthetic method for the synthesis of NCN-pincer complexes of early and middle transition metals, in cases where their synthesis via the corresponding lithium reagents fails. The paper also describes the results of tests using these new NCN-pincer metal complexes as olefin polymerisation precatalysts. Read more in their article below – free to read until the 30th June.

Mono N,C,N-pincer complexes of titanium, vanadium and niobium. Synthesis, structure and catalytic activity in olefin polymerisation
Alexey V. Chuchuryukin, Rubin Huang, Ernst E. van Faassen, Gerard P. M. van Klink, Martin Lutz, John C. Chadwick, Anthony L. Spek and Gerard van Koten, Dalton Trans., 2011, Advance Article DOI: 10.1039/C1DT10482A 

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This Hot Article will feature in the forthcoming Pincers themed issue appearing soon – indeed Professor van Koten is a guest editor of this issue, along with Professor Bert Klein Gebbink. Look out for the issue when it is published later this summer!

Do you make or use pincer ligands as part of your own research? Why not tell us your thoughts on your own work or this paper by posting a comment on this blog post below…….

In their recent paper Han Vinh Huynh and his team from the National University of Singapore discuss the coordination of new CSC pincer ligands with a range of transition metals and compare their catalytic activity in hydroamination reactions.

Specifically the group investigate 4,5-dichloroimidazolin-2-ylidene based ligand systems, in which pincer- versus pseudo-pincer formation is strongly influenced by the electron-donating abilities of the carbenes. Read more in their Dalton Transactions Hot Article – just published! This will be FREE to read until 24th May 2011.

CSC-pincer versus pseudo-pincer complexes of palladium(II): a comparative study on complexation and catalytic activities of NHC complexes
Dan Yuan, Haoyun Tang, Linfei Xiao and Han Vinh Huynh
Dalton Trans., 2011, DOI: 10.1039/C1DT10269A, Paper

In the mean time why not read some other recent Dalton Transactions themed issues.

The article will appear in Dalton Transactions forthcoming themed issue focussing on Pincer ligands. Look out for this issue when it is published in early autumn this year!