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The Viscosities of Aqueous Solutions Containing Metal Complexes. I. Luteo-type Co(II) and Co(III) Complexes and Ethylenediaminetetraacetato Complexes

The Viscosities of Aqueous Solutions Containing Metal Complexes. I. Luteo-type Co(II) and Co(III)... The viscosities of aqueous solutions containing cobalt complexes formed with ammonia, ethylenediamine (en), propylenediamine (pn), 2,2′-bipyridine (bip), 1, 10-phenanthroline (phen), and ethylenediaminetetraacetic acid (H4edta) were determined with a Cannon-Fenske capillary viscometer. Measurements were made in a Shibata viscosity bath maintained at 25±0.01°C. The Jones-Dole viscosity B-coefficients of Co(III) complex cations formed with NH3, en, pn, bip, and phen increase in that order. There is no significant difference between the B-coefficients of [Cobip3]3+ and [Cobip3]2+, or [Cophen3]3+ and [Cophen3]2+. On the other hand, a pronounced difference is found between the B-coefficients of [Coedta]− and [Coedta]2−. This might suggest that there is a marked difference in the structure of [Coedta]− and [Coedta]2− anions. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Bulletin of the Chemical Society of Japan Oxford University Press

The Viscosities of Aqueous Solutions Containing Metal Complexes. I. Luteo-type Co(II) and Co(III) Complexes and Ethylenediaminetetraacetato Complexes

Bulletin of the Chemical Society of Japan , Volume 41 (1): 3 – Mar 27, 2006

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References (7)

Publisher
Oxford University Press
Copyright
© 1968 The Chemical Society of Japan
ISSN
0009-2673
eISSN
1348-0634
DOI
10.1246/bcsj.41.139
Publisher site
See Article on Publisher Site

Abstract

The viscosities of aqueous solutions containing cobalt complexes formed with ammonia, ethylenediamine (en), propylenediamine (pn), 2,2′-bipyridine (bip), 1, 10-phenanthroline (phen), and ethylenediaminetetraacetic acid (H4edta) were determined with a Cannon-Fenske capillary viscometer. Measurements were made in a Shibata viscosity bath maintained at 25±0.01°C. The Jones-Dole viscosity B-coefficients of Co(III) complex cations formed with NH3, en, pn, bip, and phen increase in that order. There is no significant difference between the B-coefficients of [Cobip3]3+ and [Cobip3]2+, or [Cophen3]3+ and [Cophen3]2+. On the other hand, a pronounced difference is found between the B-coefficients of [Coedta]− and [Coedta]2−. This might suggest that there is a marked difference in the structure of [Coedta]− and [Coedta]2− anions.

Journal

Bulletin of the Chemical Society of JapanOxford University Press

Published: Mar 27, 2006

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