Jump to main content
Jump to site search

Issue 13, 2011
Previous Article Next Article

Determination of coordination modes and estimation of the 31P–31P distances in heterogeneous catalyst by solid state double quantum filtered 31P NMR spectroscopy

Author affiliations

Abstract

To overcome the separation difficulty of the palladium-based homogeneous catalyst, the palladium complex can be anchored on various supports such as silica. However, it is difficult to determine the amounts of the two coordination modes of the Pd nucleus, that is, Pd coordinates with one phosphorus atom and Pd coordinates with two phosphorus atoms. Here a 31P double-quantum filtered (DQ-filtered) method in solid-state NMR is introduced for the palladium-based heterogenous catalyst system. With the DQ-filtered method, we can not only determine the amounts of the two different kinds of palladium coordination modes, we can also estimate the interatomic distance of two 31P nuclei bonded to a palladium nucleus. With the help of this method, we can quickly estimate interatomic distances in our designed system and accurately re-design the palladium system to accommodate either one 31P or two 31P.

Graphical abstract: Determination of coordination modes and estimation of the 31P–31P distances in heterogeneous catalyst by solid state double quantum filtered 31P NMR spectroscopy

Back to tab navigation

Supplementary files

Publication details

The article was received on 15 Jul 2010, accepted on 14 Jan 2011 and first published on 07 Feb 2011


Article type: Paper
DOI: 10.1039/C0CP01191F
Citation: Phys. Chem. Chem. Phys., 2011,13, 5617-5620
  •   Request permissions

    Determination of coordination modes and estimation of the 31P–31P distances in heterogeneous catalyst by solid state double quantum filtered 31P NMR spectroscopy

    S. Zhang, M. Wang, Q. Liu, B. Hu, Q. Chen, H. Li and J. Amoureux, Phys. Chem. Chem. Phys., 2011, 13, 5617
    DOI: 10.1039/C0CP01191F

Search articles by author

Spotlight

Advertisements