29 Result(s)

Article

Heinrich Hertz's laboratory notes of 1887

H. G. Hertz, Manuel G. Doncel in Archive for History of Exact Sciences (1995)

Chapter and Conference Paper

The problem of internal motion of molecules in the liquid as seen from NMR relaxation studies

As a brief introduction the most important formulas are given and the crucial physical aspects will be worked out. It is essentially the Woessner theory which gives the framework of the facts to be treated. A ...

H. G. Hertz in Rotational Dynamics of Small and Macromolecules (1987)

Article

Effect of strongly interacting solutes on group rotational correlation functions in ethanol

Proton magnetic relaxation rates of solutions of LiCl and LiI in isotopically labelled ethanols CH₃CD₃OD, CD₃CH₂OD and CD₃CD₂OH have been measured as functions of temperature and concentration mostly at v=30 MHz,...

M. S. Ansari, H. G. Hertz in Journal of Solution Chemistry (1986)

Article

Nuclear spin relaxation and intermolecular interactions

H G Hertz, A Kratochwill, H Weingärtner in Proceedings of the Indian Academy of Scien… (1985)

Article

Effect of ion-solvation on the internal dynamics of the ethanol molecule as studied using NMRB′coefficients

The modification of reorientational correlation times for the various kinds of chemically non-equivalent protons of the ethanol molecule as a result of ionsolvation has been investigated with the help of NMR B...

M. Shahid Ansari, H. G. Hertz in Journal of Solution Chemistry (1984)

Article

Search for hydrophobic association between small aprotic solutes from an application of the nuclear magnetic relaxation method

Proton and deuteron magnetic relaxation rates of the four solutes acetone, acetonitrile, trimethylamine, and tetramethylurea in their aqueous mixtures are reported. For the normal and deuterated organic substa...

H. Leiter, K. J. Patil, H. G. Hertz in Journal of Solution Chemistry (1983)

Article

A study of association by hydrogen bonding in the system phenol-CCl₄ by the nuclear magnetic relaxation method

The system phenol-CCl₄ was studied by measuring proton and deuteron magnetic relaxation rates and self-diffusion coefficients at 25°C. From these data intermolecular relaxation rates have been calculated. By mean...

W. Koch, H. Leiter, H. G. Hertz in Journal of Solution Chemistry (1981)

Article

Velocity correlations in aqueous electrolyte solutions from diffusion, conductance and transference data: Application to concentrated solutions of nickel chloride and magnesium chloride

Velocity cross-correlation coefficients have been calculated for aqueous solutions of NiCl ₂ and MgCl ₂ up to concentrations of 4M. Examinatio...

A. Geiger, H. G. Hertz, R. Mills in Journal of Solution Chemistry (1981)

Article

Magnetische Relaxation durch Quadrupolwechselwirkung von Ionenkernen in nicht-wäßrigen Elektrolytlösungen. 1. Mitt. Grenzwerte für unendliche Verdünnung

H. Weingärtner, H. G. Hertz in Colloid and Polymer Science (1980)

Article

Study of weak Mn²⁺ and Cu²⁺ complexes by a nuclear magnetic resonance method

An NMR method is described and applied, which allows the investigation of the first coordination sphere of certain transition metal ions. It is based on the measurement of the solvent proton nuclear magnetic r...

M. Holz, N. W. Lutz, F. Blumenthal, H. G. Hertz in Journal of Solution Chemistry (1980)

Article

GeschwindiEkeitskorrelationen in wäßrigen Elektrolytlösungen, erhalten aus Diffusions-, Leitfähigkeits- und Überführungsdaten 1. Mitt. Theorie

H. G. Hertz in Colloid and Polymer Science (1979)

Article

Geschwindigkeitskorrelationen in wäßrigen Elektrolytlösungen, erhalten aus Diffusions-, Leitflihigkeits-und Überführungsdaten. 2. Mitt. Anwendungen auf konzentrierte Lösungen von 1-1-Elektrolyten

H. G. Hertz, K. R. Harris, R. Mills, L. A. Wool in Colloid and Polymer Science (1979)

Article

Orientierungsabhängige Modell-Paarverteilungsfurlktionen in 3 Dimensionen für die flüssigen Mischungen von Propionsäure und Äthanol mit CCl₄

H. J. Bender, H. G. Hertz in Colloid and Polymer Science (1978)

Article

Die Struktur der ersten Hydrationssphäre von Ionen in Elektrolytlösungen. Eine Untersuchung mit Hilfe der kernmagnetischen Relaxation

H. Langer, H. G. Hertz in Colloid and Polymer Science (1978)

Article

Nuclear magnetic relaxation and ionic solvation of²³Na⁺ and⁸¹Br⁻ in aqueous mixtures of simple amides

Ion-solvent interactions of Na⁺ and Br⁻ in binary aqueous mixtures of formamide,N-methylformamide (NMF), andN,N-dimethylformamide (DMF) are studied by use of²³Na and⁸¹Br magnetic relaxation times, extrapolated to...

M. Holz, H. Weingärtner, H. G. Hertz in Journal of Solution Chemistry (1978)

Article

Some structural aspects in binary aqueous mixtures of simple amides from rotational molecular motions

Nuclear magnetic relaxation rates of²D and¹⁴N in binary aqueous mixtures of formamide,N-methylformamide (NMF), andN,N-dimethylformamide (DMF) are reported as a function of the mixture composition. From these intr...

H. Weingärtner, M. Holz, H. G. Hertz in Journal of Solution Chemistry (1978)

Article

An analysis of the total ion-solvent encounter configuration of ClO ₄ ⁻ and BF ₄ ⁻ with Na⁺ and Li⁺ in water, studied by various nuclear magnetic relaxation times. Part 2¹

Proton relaxation rates of the solvent water in NaClO₄, NaBF₄, LiClO₄, and NiBF₄ solutions together with some self-diffusion coefficients are reported and interpreted in terms of structure-breaking effects.¹⁹F re...

M. Contreras, H. G. Hertz in Journal of Solution Chemistry (1978)

Chapter and Conference Paper

Struktur nicht-wässeriger Flüssigkeiten

Einige der bisher üblichen Methoden, um die Strukter von Flüssigkeiten zu beschreiben, werden kurz skizziert und kritisch diskutiert: Freie und gebundene OH-Gruppen, thermodynamische Stabilitätskonstanten, ver...

H. G. Hertz in Progress in Colloid & Polymer Science (1978)

Chapter and Conference Paper

Struktur nicht-wässeriger Flüssigkeiten

Die gegenwärtige Konferenz beschäftigt sich mit Lösungen und Adsorption. Verstehen wir Adsorption in geeignetem Sinne, dann kommt bei den betrachteten Systemen immer in gewisser Weise mindestens Zweiphasigkeit...

H. G. Hertz in Lösungen und Adsorption (1978)

Article

Proton magnetic relaxation study of water orientation around I⁻ and Li⁺

Proton relaxation time measurements are performed for 6m aqueous solutions of⁷LiI and⁶LiI in D₂O containing small amounts of H₂O. The measurements are done at low temperatures and yield maxima of the relaxation r...

A. Geiger, H. G. Hertz in Journal of Solution Chemistry (1976)