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New Pt …︁ HN bonds characterized by 15 N‐filtered and 2D NOESY 1 H NMR spectroscopy
Author(s) -
Pregosin Paul S.,
Rüegger Heinz,
Wombacher Franz,
Van Koten Gerard,
Grove David M.,
WehmanOoyevaar Ingrid C. M.
Publication year - 1992
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.1260300616
Subject(s) - chemistry , protonation , two dimensional nuclear magnetic resonance spectroscopy , platinum , nuclear magnetic resonance spectroscopy , spectroscopy , crystallography , stereochemistry , amine gas treating , ion , organic chemistry , catalysis , physics , quantum mechanics
Abstract New Pt … HN bonding modes in two cycloplatinated complexes, [Pt(C 6 H 4 CH 2 NMe 2 ‐2‐ C , N )(C 6 H 4 CH 2 NMe 2 H‐2‐ C , H )Br] (1) and [Pt(1‐C 10 H 6 NMe 2 ‐8‐ C , N )(1‐C 10 H 6 NMe 2 H‐8‐ C , H )Br] (2), were characterized by 15 N‐filtered and 2D NOESY 1 H measurements. Both 1 and 2 show markedly different interactions of an RNMe 2 H + group with a platinum centre; the 1 J ( 15 N, 1 H) values of 69 and 59 Hz for 1 and 2, respectively, are considerably less than those of the related free and protonated organic amine systems. The corresponding 1 J ( 195 Pt, 1 H) values are 72 and 180 Hz, respectively. An approach both to understanding and recognizing these Pt … HN interactions is presented.