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A ‘shiftless’ relaxation reagent for metal nuclide and nitrogen‐15 magnetic resonance in aqueous solution
Author(s) -
Gansow Otto A.,
Triplett Kelly M.,
Peterson Timothy T.,
Botto Robert E.,
Roberts John D.
Publication year - 1980
Publication title -
organic magnetic resonance
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0030-4921
DOI - 10.1002/mrc.1270130117
Subject(s) - aqueous solution , chemistry , reagent , nuclide , metal , nitrogen , cadmium , inorganic chemistry , relaxation (psychology) , formamide , analytical chemistry (journal) , nuclear chemistry , chromatography , organic chemistry , physics , psychology , social psychology , quantum mechanics
Addition of small amounts of [Gd(2 : 2 : 1)] 3+ cryptate to aqueous solutions containing 111 Cd 2+ or formamide decreases metal nuclide or nitrogen‐15 spin‐lattice ( T 1 ) relaxation times without affecting cadmium or nitrogen chemical shifts. This cryptate is thereby demonstrated to have substantial promise for greatly decreasing the time necessary to obtain natural abundance metal nuclide or 15 N NMR spectra with satisfactory signal‐to‐noise ratios for many compounds with long metal or 15 N relaxation times.