Projects per year
Abstract
Pd 3(OAc) 5NO 2, an impurity in "Pd(OAc) 2" {formally Pd 3(OAc) 6}, emerges as a serious issue in the synthesis of pure Pd II complexes derived from Pd(OAc) 2, for example in our C-H activation precatalyst, Pd(OAc) 2(pip) 2 (pip = piperidine). A previous proposal that nitrite anion can be formed by oxidation of CH 3CN by metallic Pd and air, leading to cyclo(ortho)palladated complexes containing nitrite anion, e.g. Pd(NO 2)(C∧N)L (C∧N = papaverine; L = CH 3CN or DMSO) can be explained by Pd 3(OAc) 5NO 2 acting as the nitrite source. Finally, photocrystallographic metastable linkage isomerisation and complete conversion to an oxygen-bound nitrito complex Pd(η 1-ONO)(C∧N)PPh 3 has been observed.
Original language | English |
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Pages (from-to) | 1656-1661 |
Number of pages | 6 |
Journal | Chemical Science |
Volume | 3 |
Issue number | 5 |
Early online date | 23 Feb 2012 |
DOIs | |
Publication status | Published - May 2012 |
Fingerprint Dive into the research topics of 'On the appearance of nitrite anion in [PdX(OAc)L<sub>2</sub>] and [Pd(X)(C∧N)L] syntheses (X = OAc or NO<sub>2</sub>): Photocrystallographic identification of metastable Pd(η<sup>1</sup>-ONO)(C∧N)PPh<sub>3</sub>'. Together they form a unique fingerprint.
Projects
- 1 Finished
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Senior Fellowship - TIME RESOLVED CRYSTALLOGRAPHY
Engineering and Physical Sciences Research Council
1/12/06 → 30/11/11
Project: Research council