29Si–1H IMPACT HMBC: a suitable tool for analyzing silylated derivatives

…, S Deloisy, L Blanco, J Hannedouche…

Index: Farjon, Jonathan; Giros, Audrey; Deloisy, Sandrine; Blanco, Luis; Hannedouche, Jerome; Schulz, Emmanuelle; Merlet, Denis Magnetic Resonance in Chemistry, 2013 , vol. 51, # 4 p. 230 - 233

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Citation Number: 4

Abstract

The detection of 29Si nuclei is generally difficult because of their intrinsic weak abundance (4.7%) and to a low gyromagnetic ratio, conferring a relative receptivity being two times higher than for the 13C nuclei. Moreover T1 relaxation times of 29Si nuclei are usually longer (~ 5 s) than those for 1H nuclei. Thus, 1D NMR spectroscopy of 29Si remains time- consuming and low sensitive. In order to circumvent such drawbacks, and to obtain ...

~78%

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