Electronic structure of chromium hexacarbonyl at liquid nitrogen temperature. 2. Experimental study (x-ray and neutron diffraction) of .sigma. and .pi. bonding

1976 ◽  
Vol 98 (25) ◽  
pp. 7918-7924 ◽  
Author(s):  
Bernard Rees ◽  
Andre Mitschler
Keyword(s):  
Experimental Study ◽  
Electronic Structure ◽  
Neutron Diffraction ◽  
Liquid Nitrogen ◽  
Liquid Nitrogen Temperature ◽  
X Ray ◽  
Chromium Hexacarbonyl

Kristall- und elektronische Struktur von LaAlSi2 / Crystal and Electronic Structure of LaAlSi2

2001 ◽  
Vol 56 (7) ◽  
pp. 620-625 ◽  
Author(s):  
Christian Kranenberg ◽  
Dirk Johrendt ◽  
Albrecht Mewis ◽  
Winfried Kockelmann
Keyword(s):  
Crystal Structure ◽  
Electronic Structure ◽  
Neutron Diffraction ◽  
Structure Type ◽  
X Ray ◽  
Arc Melting ◽  
Band Structure Calculations ◽  
Ray Methods ◽  
Structure Calculations ◽  
Crystal And Electronic Structure

Abstract LaAlSi2 (a = 4.196(2), c = 11.437(7) Å; P3̄ml; Z = 2) was synthesized by arc-melting of preheated mixtures of the elements. The compound was investigated by means of X-ray methods and by neutron diffraction. The crystal structure can be described as a stacking variant of two different segments. The first one corresponds to the CaAl2Si2 structure type (LaAl2Si2), the second one with the A1B2 structure type (LaSi2). The segments are stacked along [001]. The electronic structure of the compound is discussed on the basis of LMTO band structure calculations.

INTENSITY OF X-RAY (222) LINE IN InSb AT 77 K UNDER PRESSURE

1989 ◽  
Vol 03 (14) ◽  
pp. 1101-1104
Author(s):  
BIN OKAI ◽  
KAORU J. TAKANO ◽  
JIICHIRO YOSHIMOTO ◽  
HIROKI TAKAHASHI ◽  
ATSUSHI IZAWA ◽  
...  
Keyword(s):  
Liquid Nitrogen ◽  
Structural Transition ◽  
Liquid Nitrogen Temperature ◽  
Abrupt Decrease ◽  
X Ray ◽  
Transition Pressure

The intensity of X-ray (222) line in InSb was measured at liquid nitrogen temperature up to the transition pressure. No abrupt decrease at ca. 3 GPa as reported by Yoder-Short, Colella and Weinstein was observed at 77 K, indicating that a smearing of the bonding charge is not responsible for the structural transition of InSb.

Experimental study of the electronic structure of uranium halides and oxyhalides by x-ray photoelectron spectroscopy

Physica B+C ◽  
1980 ◽  
Vol 102 (1-3) ◽  
pp. 114-116
Author(s):  
E. Thibaut ◽  
J.-P. Boutique ◽  
J. Verbist ◽  
H. Noël ◽  
J.C. Levet
Keyword(s):  
Experimental Study ◽  
Electronic Structure ◽  
Photoelectron Spectroscopy ◽  
X Ray
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