Volume 20, Issue 1, January 1991
Index of content:
20(1991); http://dx.doi.org/10.1063/1.555885View Description Hide Description
Wavelengths, energy levels, level classifications, intensities, and transition probabilities for the copper spectra Cu X to Cu XXIX are compiled. The data are critically evaluated and the best results, in the author’s judgment, are quoted. A short review of the work on each stage of ionization is included. Grotrian diagrams are also presented to provide graphical overviews. The literature has been surveyed to March 1990.
Wavelengths and Energy Level Classifications of Magnesium Spectra for All Stages of Ionization (Mg I through Mg XII)20(1991); http://dx.doi.org/10.1063/1.555879View Description Hide Description
Wavelengths and their classifications are compiled for the spectra of magnesium. Selections of data are based on the critical evaluations in the compilation of energy levels by Martin and Zalubas [1980, J. Phys. Chem. Ref. Data 9, 1–58], with some updating from the more recent literature. All classifications have been verified with predictions made by differencing the energy levels. In addition to the spectra ordered by ionization state, two finding lists are included, one containing Mg I to Mg III and the other Mg IV to Mg XII.
20(1991); http://dx.doi.org/10.1063/1.555906View Description Hide Description
All significant experimental measurements and theoretical calculations of the spectroscopy and structure of the alkali hydrides NaH, KH, RbH, and CsH, and the corresponding alkali deuterides, are identified and reviewed. Published molecular constant determinations from conventional and laser spectroscopy are evaluated; recommended spectroscopic constants for X 1Σ+ and A 1Σ+ states are tabulated. RKR and hybrid potential energy curves are evaluated; recommended RKR curves for X 1Σ+ and A 1Σ+ states are tabulated. Ground statedissociation energy (D e ) estimates are evaluated; recommended X 1Σ+ and A 1Σ+ state D e and D 0 values are tabulated. Accurate electronic structure calculations (Hartree–Fock or better) are listed and described briefly; all excited electron states considered are included. Experimental and theoretical radiative and dipole properties are noted and discussed. Calculations on the positive and negative ions of the four diatomic alkali hydrides are also listed and described briefly.
20(1991); http://dx.doi.org/10.1063/1.555884View Description Hide Description
Transition temperatures for 367 straight chain 4,4’‐alkyl/alkoxyphenylbenzoates (through Nov. 1990) have been compiled and critically evaluated. Information was obtained wherever possible, with the exception of the patent literature, and examined for editorial coherency. Line graphs of the melting and clearing temperatures were plotted as a function of the chain length of either side, while holding constant the other side, and evaluated for consistency, particularly for the persistence of the odd–even alternation in the clearing curve. It became apparent that major breaks in this curve indicated errors in the data which, when corrected, restored the alternating curve. Mesophase identification was reviewed by evaluating bar graphs and block diagrams. Usually, a given phase appeared first in a monotropic form, then in an enantiotropic form, and finally disappeared without reappearing in the series. Further evaluation of the data suggested that a number of phases have been missed. Evaluated transition temperatures are available on 39 dialkyl, 91 alkyl/alkoxy, 100 alkoxy/alkyl, and 137 dialkoxy compounds. Enthalpies for 93 of the esters are also included.
20(1991); http://dx.doi.org/10.1063/1.555886View Description Hide Description