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Applications of Pulsed‐Gradient Spin‐Echo (PGSE) Diffusion Measurements in Organometallic Chemistry
Author(s) -
Valentini Massimiliano,
Rüegger Heinz,
Pregosin Paul S.
Publication year - 2001
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/1522-2675(20011017)84:10<2833::aid-hlca2833>3.0.co;2-o
Subject(s) - chemistry , pulsed field gradient , diffusion , spin echo , ionic bonding , chemical physics , organometallic chemistry , reproducibility , analytical chemistry (journal) , field (mathematics) , spin (aerodynamics) , ion , molecule , chromatography , organic chemistry , thermodynamics , magnetic resonance imaging , mathematics , medicine , physics , radiology , pure mathematics , crystal structure
Diffusion data from pulsed‐field gradient spin‐echo (PGSE) methods are shown to be qualitatively useful in the investigation of problems involving unknown molecular aggregation and/or the nature of inter‐ionic interactions in metal complexes. For charged species possessing anions such as PF, BF, CF 3 SO or BArF − , both 19 F‐ and 1 H‐PGSE methods offer a valid alternative and, sometimes, unique view of gross and subtle solution molecular structure and dynamics. Problems associated with solvents, concentration, and reproducibility are discussed.