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57 Fe, 13 C Coupling Constants from Inverse Detection Experiments at Natural Isotope Abundance
Author(s) -
Meier Eric J. M.,
Koźmiński Wiktor,
von Philipsborn Wolfgang
Publication year - 1996
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(199601)34:1<89::aid-omr843>3.0.co;2-v
Subject(s) - chemistry , coupling constant , natural abundance , isotope , carbon 13 , kinetic isotope effect , abundance (ecology) , δ13c , resonance (particle physics) , inverse , nuclear magnetic resonance , stable isotope ratio , analytical chemistry (journal) , deuterium , atomic physics , mass spectrometry , environmental chemistry , physics , nuclear physics , chromatography , geometry , mathematics , particle physics , biology , fishery
The possibility of measuring 57 Fe, 13 C coupling constants and 13 C/ 12 C isotope effects on 57 Fe nuclei by ‘pseudo‐triple’ and ‘pseudo‐quadruple’ resonance experiments using ( 1 H, 57 Fe), ( 1 H, 57 Fe)‐{ 31 P} and ( 31 P, 13 C)‐{ 13 C, 1 H} HMQC inverse correlations with Ψ‐BIRD or bi‐selective pulses is demonstrated. 57 Fe, 1 H coupling constants in the range of 1–2 Hz were used for the polarization transfer, 1 J and 2 J 57 Fe, 13 C coupling constants, their relative signs, and isotopic shifts 1 Δ 13/12 C( 57 Fe) were determined for the first time in (cyclopentadienyl)iron complexes with 57 Fe and 13 C in natural isotope abundance.