Gutmann T, Ratajczyk T, Dillenberger S, Xu Y, Grünberg A, Breitzke H, Bommerich U, Trantzschel T, Bernarding J, Buntkowsky G. New investigations of technical rhodium and iridium catalysts in homogeneous phase employing para-hydrogen induced polarization.
SOLID STATE NUCLEAR MAGNETIC RESONANCE 2011;
40:88-90. [PMID:
21855300 DOI:
10.1016/j.ssnmr.2011.08.002]
[Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2011] [Revised: 07/30/2011] [Accepted: 08/01/2011] [Indexed: 05/31/2023]
Abstract
It is shown that the para-hydrogen induced polarization (PHIP) phenomenon in homogenous solution containing the substrate styrene is also observable employing simple inorganic systems of the form MCl(3)·xH(2)O (M=Rh, Ir) as catalyst. Such observation confirms that already very simple metal complexes enable the creation of PHIP signal enhancement in solution. This opens up new pathways to increase the sensitivity of NMR and MRT by PHIP enhancement using cost-effective catalysts and will be essential for further mechanistic studies of simple transition metal systems.
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