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1 H–{ 125 Te} indirect detection in nuclear magnetic resonance spectra of organotellurium compounds
Author(s) -
Schroeder T. Benjamin,
Job Constantin,
Brown Michael F.,
Glass Richard S.,
You Niannian,
Block Eric
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(199711)35:11<752::aid-omr167>3.0.co;2-v
Subject(s) - chemistry , heteronuclear molecule , nuclear magnetic resonance spectroscopy , coupling constant , spectroscopy , proton , spectral line , telluride , analytical chemistry (journal) , proton nmr , nuclear magnetic resonance , stereochemistry , organic chemistry , physics , nuclear physics , astronomy , particle physics , quantum mechanics
125 Te was measured by inverse proton detection using multiple‐quantum 1 H–{ 125 Te} correlation spectroscopy. One‐ and two‐dimensional heteronuclear multiple quantum coherence (HMQC) experiments are reported for dimethyl telluride, dimethyl ditelluride, benzyl tellurocyanate, trimethyltelluronium chloride, telluromethionine, tellurophene, 1,4‐thiatellurin and di( n ‐butyl) telluride having a range of 125 Te– 1 H coupling constants from 14.6 to 102.5 Hz. The enhancement for indirect vs . direct 125 Te detection was estimated for trimethyltelluronium chloride. The theoretical enhancement is 50.7 and that estimated experimentally 46.2. Multiple‐quantum 1 H–{ 123 Te} correlation spectroscopy is also illustrated for one example. © 1997 John Wiley & Sons, Ltd.