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Natural abundance nitrogen‐15 NMR spectroscopy of rhodium complexes by indirect detection using phosphorus
Author(s) -
Carlton Laurence,
Weber Rosemarie
Publication year - 1997
Publication title -
magnetic resonance in chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0749-1581
DOI - 10.1002/(sici)1097-458x(199712)35:12<817::aid-omr172>3.0.co;2-p
Subject(s) - chemistry , phosphorus , nitrogen , rhodium , abundance (ecology) , natural abundance , nuclear magnetic resonance spectroscopy , phosphorus 31 nmr spectroscopy , spectroscopy , analytical chemistry (journal) , pulse sequence , stereochemistry , nuclear magnetic resonance , mass spectrometry , organic chemistry , chromatography , catalysis , physics , quantum mechanics , biology , fishery
Nitrogen‐15 NMR spectra of the complexes [Rh(N 3 )(PPh 3 ) 3 ], [Rh 2 (N 3 ) 2 (PPh 3 ) 4 ] and [Rh{N(CN) 2 }(PPh 3 ) 3 ], each containing 15 N at natural abundance, were obtained by indirect detection (HMQC) using phosphorus as the observed nucleus. Data collection times varied from 4 h to 4 d depending upon the accuracy of the estimated value of 2 J ( 31 P, 15 N) used to optimize the pulse sequence. © 1997 John Wiley & Sons, Ltd.