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One‐Bond 13 C, 13 C‐Spin Coupling in η 4 ‐, η 3 ‐ and η 2 ‐Olefin Transition Metal Complexes
Author(s) -
ZoblRuh Susanne,
von Philipsborn Wolfgang
Publication year - 1981
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/hlca.19810640744
Subject(s) - chemistry , coupling constant , spin (aerodynamics) , transition metal , metal , crystallography , coupling (piping) , carbon 13 , isotope , kinetic isotope effect , atomic physics , nuclear physics , deuterium , organic chemistry , physics , mechanical engineering , particle physics , engineering , thermodynamics , catalysis
One‐bond 13 C, 13 C‐spin‐coupling constants have been measured, with natural isotope abundance, in η 4 ‐diene, η 3 ‐allyl and η 2 ‐ene transition‐metal carbonyl complexes. Typical values of 1 J (C,C) are given for Fe‐, Ru‐ and Os‐complexes with the three types of olefinic ligands. The effects of substituents and the structural significance of the C,C‐coupling constants are discussed.