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1 H bridging and terminal hydride T 1 values. Comments on classical vs non‐classical hydride identification using T 1 criteria
Author(s) -
Ammann C.,
Isaia F.,
Pregosin P. S.
Publication year - 1988
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/mrc.1260260311
Subject(s) - chemistry , hydride , iridium , hydrogen molecule , ruthenium , hydrogen , organic chemistry , catalysis
Hydride 1 H T 1 values are reported for a selected series of ruthenium, iridium and platinum complexes. These T 1 values range from 6.9 to 0.05 s with the shortest value, 0.05 s, assigned to a complex containing both hydride and coordinated molecular hydrogen, i.e. “M(H 2 )”. There are nuclear Overhauser enhancements arising both from protons on coordinated ligands and other hydride ligands. It is suggested that the molecular weight of the complex and the measurement conditions can be important factors for T 1 .