摘要:

The energy levels of the titanium atom in all of its stages of ionization, as derived from the analyses of atomic spectra, have been critically compiled. In cases where only line classifications are reported in the literature, level values have been derived. Term designations, experimentalg‐values, and ionization energies are included. Calculated percentages of the two leading components of eigenvectors of the levels are given.

ISSN:0047-2689    

DOI:10.1063/1.555591

出版商:AIP    

年代:1979

数据来源: AIP

摘要:

The published data on the spectrum of the neutral atom of boron are complied and presented. In one table 164 lines in the range 36010−993 A˚ are listed with their intensities and classifications. A second table gives 92 levels with the numerical values of the energy.

ISSN:0047-2689    

DOI:10.1063/1.555592

出版商:AIP    

年代:1979

数据来源: AIP

摘要:

Tabulations are presented of relativistic Hartree‐Fock atomic form factorsF(x,Z), for values ofx(=sin(&Vthgr;/2)/&lgr; from 0.01 to 109A˚−1, for all elementsZ=1 to 100. ForZ=1,F(x,Z) is given by the exact expression of Pirenne. ForZ=2 to 98,x=0.01 to 2.0 A˚−1, the tabulated values are those of Cromer and Waber given in theInternationalTablesforX−RayCrystallography(Vol. IV, 1974), based in part on the work of Doyle and Turner. ForZ=21 to 92,x=2.2 to 6.0 A˚−1, the present tables are based on the values of Doyle and Turner and additional values (Z=44,60,68, and 74) as given by O&slash;verbo&slash;. ForZ=3 to 20.x=2.2 to 45 A˚−1,Z=21 to 92,x=62 to 45 A˚−1the tables are interpolated from values given for 36 elements by O&slash;verbo&slash;, extended tox=109A˚−1using O&slash;verbo&slash;’s corrections to the Bethe‐LevingerK‐shell expression. The remainder of the table is filled in by interpolation and extrapolation, guided for highx‐values by the Bethe‐Levinger result. Tables of relativistic coherent (Rayleigh) scattering cross sections, obtained by numerical integration of the Thomson formula weighted byF2(x,Z), are presented for all elementsZ=1 to 100, for photon energies 100 eV (&lgr;=124 A˚=12.4 nm) to 100 MeV (&lgr;=0.000 124 A˚=12.4 fm). Departures from the nonrelativistic coherent scattering cross sections tabulated in J. Phys. Chem. Ref. Data 4, 471 (1975) are less than 1% forZ<20. However for a high‐Zelement such as lead, for example, the relativistic coherent scattering cross section is systematically higher by less than 0.4% below 1 keV, by 8% at 100 keV and by 13% above 1 MeV.

ISSN:0047-2689    

DOI:10.1063/1.555593

出版商:AIP    

年代:1979

数据来源: AIP

摘要:

The available data of the microwave spectrum of vinyl cyanide are critically reviewed and tabulated. Molecular data such as rotational constants, centrifugal distortion constants, hyperfine coupling constants, dipole moments, and structural parameters are tabulated. Rotational transitions from 400 MHz to 200 GHz, which are likely to be of interest to radio astronomy, are calculated and tabulated along with their estimated 95% confidence limits.

ISSN:0047-2689    

DOI:10.1063/1.555589

出版商:AIP    

年代:1979

数据来源: AIP

摘要:

Data on the electrical conductance, density, viscosity, and surface tension of mixed halide melts have been systematically collected and evaluated. Results are given for eighty‐five binary mixtures over a range of compositions and temperatures.

ISSN:0047-2689    

DOI:10.1063/1.555590

出版商:AIP    

年代:1979

数据来源: AIP