Coordination of water by cobalt(II) ion in acetone

R. Bedetti; U. Biader Ceipidor; V. Carunchio; A. Messina

doi:10.1016/S0020-1693(00)88510-2

Coordination of water by cobalt(II) ion in acetone

R. Bedetti, U. Biader Ceipidor, V. Carunchio, A. Messina

Fondazione IRCCS Istituto Nazionale dei Tumori

Research output: Contribution to journal › Article › peer-review

Abstract

The cobalt(II) perchlorate-water system in acetone has been studied in order to investigate the exchange between water and acetone in the coordination sphere of the metal. Concentration quotients at equilibrium were determined by spectrophotometric measurements in the visible region at four different temperatures. NMR measurements reveal that coordination to cobalt is dominated by water molecules even in the presence of large excess of acetone. Little variation of the equilibrium concentration quotients with temperature is in agreement with low enthalpy variation in the water-acetone exchange. This behaviour agrees with the very close DN_SbCl₅ values of the two solvents.

Original language	English
Pages (from-to)	253-257
Number of pages	5
Journal	Inorganica Chimica Acta
Volume	62
Issue number	C
DOIs	https://doi.org/10.1016/S0020-1693(00)88510-2
Publication status	Published - 1982

ASJC Scopus subject areas

Biochemistry
Inorganic Chemistry
Physical and Theoretical Chemistry
Materials Chemistry

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abstract = "The cobalt(II) perchlorate-water system in acetone has been studied in order to investigate the exchange between water and acetone in the coordination sphere of the metal. Concentration quotients at equilibrium were determined by spectrophotometric measurements in the visible region at four different temperatures. NMR measurements reveal that coordination to cobalt is dominated by water molecules even in the presence of large excess of acetone. Little variation of the equilibrium concentration quotients with temperature is in agreement with low enthalpy variation in the water-acetone exchange. This behaviour agrees with the very close DNSbCl5 values of the two solvents.",

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AU - Bedetti, R.

AU - Ceipidor, U. Biader

AU - Carunchio, V.

AU - Messina, A.

PY - 1982

Y1 - 1982

N2 - The cobalt(II) perchlorate-water system in acetone has been studied in order to investigate the exchange between water and acetone in the coordination sphere of the metal. Concentration quotients at equilibrium were determined by spectrophotometric measurements in the visible region at four different temperatures. NMR measurements reveal that coordination to cobalt is dominated by water molecules even in the presence of large excess of acetone. Little variation of the equilibrium concentration quotients with temperature is in agreement with low enthalpy variation in the water-acetone exchange. This behaviour agrees with the very close DNSbCl5 values of the two solvents.

AB - The cobalt(II) perchlorate-water system in acetone has been studied in order to investigate the exchange between water and acetone in the coordination sphere of the metal. Concentration quotients at equilibrium were determined by spectrophotometric measurements in the visible region at four different temperatures. NMR measurements reveal that coordination to cobalt is dominated by water molecules even in the presence of large excess of acetone. Little variation of the equilibrium concentration quotients with temperature is in agreement with low enthalpy variation in the water-acetone exchange. This behaviour agrees with the very close DNSbCl5 values of the two solvents.

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JO - Inorganica Chimica Acta

JF - Inorganica Chimica Acta

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Coordination of water by cobalt(II) ion in acetone

Abstract

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