Lanthanide Shift Reagents. Paper 18. Equilibrium Binding Constants for Europium Shift Reagent with Nitrogen Heterocycles
作者:
DavidM. Rackham,
期刊:
Spectroscopy Letters
(Taylor Available online 1980)
卷期:
Volume 13,
issue 8
页码: 517-520
ISSN:0038-7010
年代: 1980
DOI:10.1080/00387018008064048
出版商: Taylor & Francis Group
关键词: Europium Shift Reagent;N. M. R.;Spectra;Equilibrium Binding Constants
数据来源: Taylor
摘要:
Paper 16 in this series1, 2, 3was concerned with the equilibrium binding constants (K) of the shift reagent Europium tris (2, 2, 6, 6-tetramethylheptane-3, 5-dionate), Eu(thd)3, with primary, secondary and tertiary amines. One nitrogen heterocycle, pyridine, and two of its derivatives (see Table) were included. In the present paper we describe the binding constants for a further 9 nitrogen containing heterocycles and relate these to basicity and steric effects.
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