Vibrational Spectra and Bonding in Halogen Metalorganic Compounds Containing the Elements of Group IV A

1977 ◽  
Vol 107 (2) ◽  
pp. 181-188 ◽  
Author(s):  
Giulio Paliani ◽  
Salvatore Sorriso ◽  
Rosario Cataliotti ◽  
Roberto Danieli
Keyword(s):  
Vibrational Spectra ◽  
Group Iv ◽  
Metalorganic Compounds

1:2 Trimethylphosphine Complexes of the Group IV Tetrahalides, trans-MX4•2P(CH3)3 and trans-MX4•2P(CD3)3 (where M = Si, Ge, or Sn; X = Cl or Br); Assignment of Metal–Phosphorus modes

1973 ◽  
Vol 51 (16) ◽  
pp. 2685-2696 ◽  
Author(s):  
D. K. Frieson ◽  
G. A. Ozin
Keyword(s):  
Vibrational Spectra ◽  
Group Iv ◽  
Trans Configuration ◽  
Normal Coordinate ◽  
Unambiguous Assignment

The vibrational spectra of some 1:2 trimethylphosphine adducts of the group IV tetrahalides, which contain ligands in a trans configuration, are examined in detail using perdeutero-trimethylphosphine to facilitate the assignment of all metal–halogen and metal–phosphorus stretching modes. Preparation of SiCl4•2PMe3 with a 1:1 mixture of P(CH3)3 and P(CD3)3 enables an almost unambiguous assignment of the spectrum of this adduct. Normal coordinate calculations for all adducts are reported.

Trimethylgermanium Nitrate

1971 ◽  
Vol 49 (12) ◽  
pp. 2171-2175 ◽  
Author(s):  
D. Potts ◽  
A. Walker
Keyword(s):  
Ethyl Acetate ◽  
Vibrational Spectra ◽  
Group Iv ◽  
Germanium Atom ◽  
Solution Properties ◽  
Conductivity Measurements ◽  
Alkyl Nitrates ◽  
Methyl Cyanide ◽  
Ultraviolet Spectra ◽  
Covalently Bound

The spectroscopic and solution properties of trimethylgermanium nitrate have been determined and compared with those of other known Group IV alkyl nitrates. The vibrational spectra show that the nitrato group is covalently bound to the germanium atom in a unidentate manner. Ultraviolet spectra and conductivity measurements indicate that the compound behaves as a 1:1 electrolyte in water and dimethylsulfoxide, but is a non-electrolyte in methyl cyanide, nitromethane, and ethyl acetate. Attempts to prepare methylgermanium trinitrate are also described.

The Vibrational Spectra of Some Tin and Germanium Halogen Metalorganic Compounds

1953 ◽  
Vol 57 (9) ◽  
pp. 939-942 ◽  
Author(s):  
Ellis R. Lippincott ◽  
Philip Mercier ◽  
Marvin C. Tobin
Keyword(s):  
Vibrational Spectra ◽  
Metalorganic Compounds

Luminescence from individual dislocations in II-VI and III-V semiconductors

1991 ◽  
Vol 49 ◽  
pp. 834-835
Author(s):  
J W Steeds
Keyword(s):  
Group Iv ◽  
Luminescence Properties ◽  
Carrier Recombination ◽  
Transmission Electron ◽  
Wide Range ◽  
Basic Physics ◽  
Semiconducting Compounds ◽  
Diamond Group ◽  
Non Destructive ◽  
Technological Significance

There is a wide range of experimental results related to dislocations in diamond, group IV, II-VI, III-V semiconducting compounds, but few of these come from isolated, well-characterized individual dislocations. We are here concerned with only those results obtained in a transmission electron microscope so that the dislocations responsible were individually imaged. The luminescence properties of the dislocations were studied by cathodoluminescence performed at low temperatures (~30K) achieved by liquid helium cooling. Both spectra and monochromatic cathodoluminescence images have been obtained, in some cases as a function of temperature.There are two aspects of this work. One is mainly of technological significance. By understanding the luminescence properties of dislocations in epitaxial structures, future non-destructive evaluation will be enhanced. The second aim is to arrive at a good detailed understanding of the basic physics associated with carrier recombination near dislocations as revealed by local luminescence properties.

Vibrational spectra and proton acceptor ability of 2,2-biphenyldiamine

1993 ◽  
Vol 90 ◽  
pp. 1667-1683 ◽  
Author(s):  
K Platteborze ◽  
T Zeegers-Huyskens
Keyword(s):  
Vibrational Spectra ◽  
Proton Acceptor
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