Journal ArticleDOI
Dielectric Properties of Ice and Solid D2O
Robert P. Auty,Robert H. Cole +1 more
TLDR
In this article, complex dielectric constants have been measured for ice from the melting point to −65°C and for solid D2O to −35°C, by a combination of bridge and transient methods.Abstract:
Complex dielectric constants have been measured for ice from the melting point to −65°C, and for solid D2O to −35°C, by a combination of bridge and transient methods. For both, the dispersion is described by the simple Debye formula, and the relaxation times τ by the simple rate expression τ = A exp(B/RT). For ice, A = 5.3×10−16 sec, B = 13.2 kcal/mole; and for solid D2O, A = 7.7×10−16 sec, B = 13.4 kcal/mole. The equilibrium dielectric constant for ice is 91.5 at 0°C and increases at lower temperatures; the values for solid D2O are only slightly smaller. Measures taken to minimize errors from voids in the sample and direct current conductance are discussed.read more
Citations
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Journal ArticleDOI
Paramagnetic Species in Gamma‐Irradiated Ice
Max S. Matheson,Bernard Smaller +1 more
TL;DR: In this article, the paramagnetic resonance spectra of H2O and D2O ice irradiated at 77°K have been examined and the absorbing species have been identified as H and OH (or D and OD), a significant result for the radiation chemistry of aqueous solutions.
Journal ArticleDOI
Rotational and translational water diffusion in the hemoglobin hydration shell: dielectric and proton nuclear relaxation measurements
TL;DR: The increase of the water mobility in the hydration shell compared to the bulk is mainly due to an enhanced activation enthalpy, which is about one-fifth of the corresponding value of bulk water.
Journal ArticleDOI
Transfer of Protons through “Pure” Ice Ih Single Crystals. II. Molecular Models for Polarization and Conduction
TL;DR: In this paper, a new interpretation of the intrinsic polarization of pure ice single crystals is presented, which visualizes L, D pair formation as a one-step process: a proton shifted by near-infrared phonon excitation to an empty corner of its H2O tetrahedron.
Journal ArticleDOI
Mechanism of the electrical conductivity in ice
TL;DR: In this paper, it has been shown by electrolysis experiments that the nature of this conductivity is purely ionic, without any noticeable contribution from the electrons, the charge transport occurring by the proton displacement.
Journal ArticleDOI
Influence of electric field on the hydrogen bond network of water.
TL;DR: A theory based on relatively simple concepts of reaction equilibria and Boltzmann distribution is developed, relating to a surprising but explainable finding that H-bonds can stabilize molecules whose dipoles are oriented perpendicular to the direction of field.
References
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Journal ArticleDOI
The Dielectric Polarization of Polar Liquids
TL;DR: In this paper, an extension of the Onsager theory of dielectric polarization is presented, which is applied to liquid water under the assumption of tetrahedral coordination and directed bonds between neighboring molecules.
Journal ArticleDOI
A Wide Range Capacitance‐Conductance Bridge
Robert H. Cole,Paul M. Gross +1 more
TL;DR: In this paper, the authors describe a bridge for reasonably accurate measurement by direct balance of capacitance and conductance in the frequency range 50 c/sec. to 5 cm/sec., and over most of this range is essentially direct reading in the two admission components with negligible unbalance from lead effects or guard circuits of the unknown.
Journal ArticleDOI
A Calculation of the Static Dielectric Constant of Ice
TL;DR: In this article, a calculation of the static dielectric constant of ice using only simple molecular data and with well-defined assumptions as to the possibilities of molecular movement in the crystal is presented.
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