Diminution of the macrocyclic effect for nickel(II) complexes of thioethers in nonaqueous solvents
- 1 January 1975
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Chemical Communications
- No. 19,p. 807-808
- https://doi.org/10.1039/c39750000807
Abstract
The ratio of stability constants for 14-membered macrocyclic vs. open-chain tetrathia complexes of NiII in nitromethane is only 180, whereas the corresponding ratio for tetramine complexes in water is 106.4, lending support to the hypothesis that (in addition to contributions from configurational entropy) the differing degree of ligand solvation by hydrogen bonding in water is a major source of the macrocyclic effect.Keywords
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