Thermodynamic parameters for polyether adducts with neutral molecules

J. N. Spencer; Abrahim I. Zafar; Travis F. Ganunis; C. H. Yoder; Larry J. Fenton; James L. Ealy; Sunita Gupta; Christine M. Salata; Ian Paul; William J. Nicholson; J. E. Mihalick

doi:10.1021/j100187a055

Thermodynamic parameters for polyether adducts with neutral molecules

J. N. Spencer, Abrahim I. Zafar, Travis F. Ganunis, C. H. Yoder, Larry J. Fenton, James L. Ealy, Sunita Gupta, Christine M. Salata, Ian Paul, William J. Nicholson, J. E. Mihalick

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Abstract

Thermodynamic parameters for the interaction of neutral molecules with cyclic and acyclic polyethers in benzene solvent have been determined by calorimetry. Although triethylene glycol dimethyl ether loses more entropy upon adduct formation with malononitrile than does 12-crown-4, similar enthalpies of formation indicate that the electron-donating abilities of the oxygen atoms of cyclic or acyclic ethers are comparable. Thus, no macrocyclic effect is observed for 12-crown-4 when compared to its analogous acyclic ether. The interactions of malononitrile and acetonitrile with ethers seem to depend on the collective action of the oxygen atoms in the ethers. Dimethyltin dichloride binds to a specific oxygen site.

Original language	English (US)
Pages (from-to)	3475-3477
Number of pages	3
Journal	Journal of physical chemistry
Volume	96
Issue number	8
DOIs	https://doi.org/10.1021/j100187a055
State	Published - 1992

All Science Journal Classification (ASJC) codes

General Engineering
Physical and Theoretical Chemistry

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10.1021/j100187a055

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title = "Thermodynamic parameters for polyether adducts with neutral molecules",

abstract = "Thermodynamic parameters for the interaction of neutral molecules with cyclic and acyclic polyethers in benzene solvent have been determined by calorimetry. Although triethylene glycol dimethyl ether loses more entropy upon adduct formation with malononitrile than does 12-crown-4, similar enthalpies of formation indicate that the electron-donating abilities of the oxygen atoms of cyclic or acyclic ethers are comparable. Thus, no macrocyclic effect is observed for 12-crown-4 when compared to its analogous acyclic ether. The interactions of malononitrile and acetonitrile with ethers seem to depend on the collective action of the oxygen atoms in the ethers. Dimethyltin dichloride binds to a specific oxygen site.",

author = "Spencer, {J. N.} and Zafar, {Abrahim I.} and Ganunis, {Travis F.} and Yoder, {C. H.} and Fenton, {Larry J.} and Ealy, {James L.} and Sunita Gupta and Salata, {Christine M.} and Ian Paul and Nicholson, {William J.} and Mihalick, {J. E.}",

year = "1992",

doi = "10.1021/j100187a055",

language = "English (US)",

volume = "96",

pages = "3475--3477",

journal = "Journal of physical chemistry",

issn = "0022-3654",

publisher = "American Chemical Society",

number = "8",

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TY - JOUR

T1 - Thermodynamic parameters for polyether adducts with neutral molecules

AU - Spencer, J. N.

AU - Zafar, Abrahim I.

AU - Ganunis, Travis F.

AU - Yoder, C. H.

AU - Fenton, Larry J.

AU - Ealy, James L.

AU - Gupta, Sunita

AU - Salata, Christine M.

AU - Paul, Ian

AU - Nicholson, William J.

AU - Mihalick, J. E.

PY - 1992

Y1 - 1992

N2 - Thermodynamic parameters for the interaction of neutral molecules with cyclic and acyclic polyethers in benzene solvent have been determined by calorimetry. Although triethylene glycol dimethyl ether loses more entropy upon adduct formation with malononitrile than does 12-crown-4, similar enthalpies of formation indicate that the electron-donating abilities of the oxygen atoms of cyclic or acyclic ethers are comparable. Thus, no macrocyclic effect is observed for 12-crown-4 when compared to its analogous acyclic ether. The interactions of malononitrile and acetonitrile with ethers seem to depend on the collective action of the oxygen atoms in the ethers. Dimethyltin dichloride binds to a specific oxygen site.

AB - Thermodynamic parameters for the interaction of neutral molecules with cyclic and acyclic polyethers in benzene solvent have been determined by calorimetry. Although triethylene glycol dimethyl ether loses more entropy upon adduct formation with malononitrile than does 12-crown-4, similar enthalpies of formation indicate that the electron-donating abilities of the oxygen atoms of cyclic or acyclic ethers are comparable. Thus, no macrocyclic effect is observed for 12-crown-4 when compared to its analogous acyclic ether. The interactions of malononitrile and acetonitrile with ethers seem to depend on the collective action of the oxygen atoms in the ethers. Dimethyltin dichloride binds to a specific oxygen site.

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U2 - 10.1021/j100187a055

DO - 10.1021/j100187a055

M3 - Article

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SN - 0022-3654

VL - 96

SP - 3475

EP - 3477

JO - Journal of physical chemistry

JF - Journal of physical chemistry

IS - 8

ER -

Thermodynamic parameters for polyether adducts with neutral molecules

Abstract

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