High resolution study of AsHD2: Ground state and the three bending fundamental bands ν3, ν4, and ν6

2006 ◽  
Vol 240 (1) ◽  
pp. 102-111 ◽  
Author(s):  
O.N. Ulenikov ◽  
E.S. Bekhtereva ◽  
A.S. Bulavenkova ◽  
C. Leroy ◽  
W. Jerzembeck ◽  
...  
1998 ◽  
Vol 191 (1) ◽  
pp. 9-16 ◽  
Author(s):  
O.N. Ulenikov ◽  
G.A. Onopenko ◽  
S. Alanko ◽  
M. Koivusaari ◽  
R. Anttila

1964 ◽  
Vol 42 (11) ◽  
pp. 2259-2263 ◽  
Author(s):  
W. Jeremy Jones ◽  
B. P. Stoicheff

A high-resolution study of the rotational Raman spectra of cyclopropane and cyclopropane-d6 has yielded the values 0.66962 ± 0.00020 cm−1 and 0.46079 ± 0.00015 cm−1 for their ground-state rotational constants. From these values the C–C internuclear distance is determined to be 1.514 ± 0.002 Å.


2001 ◽  
Vol 79 (2-3) ◽  
pp. 479-482 ◽  
Author(s):  
D B Braund ◽  
A RH Cole

The spectrum of trans-glyoxal has been recorded at a resolution of about 0.004 cm–1 in the region from 2770 to 2900 cm–1. 1549 lines have been assigned to the type B band due to the υ9 (bu) fundamental (antisymmetric C–H stretching vibration). The ground-state rotational constants confirm earlier values and new constants are determined for the excited state of υ9. PACS No.: 33.20E


2004 ◽  
Vol 93 (26) ◽  
Author(s):  
B. D. Gaulin ◽  
S. H. Lee ◽  
S. Haravifard ◽  
J. P. Castellan ◽  
A. J. Berlinsky ◽  
...  

Author(s):  
G. Van Tendeloo ◽  
J. Van Landuyt ◽  
S. Amelinckx

Polytypism has been studied for a number of years and a wide variety of stacking sequences has been detected and analysed. SiC is the prototype material in this respect; see e.g. Electron microscopy under high resolution conditions when combined with x-ray measurements is a very powerful technique to elucidate the correct stacking sequence or to study polytype transformations and deviations from the ideal stacking sequence.


Author(s):  
R. Gronsky

The phenomenon of clustering in Al-Ag alloys has been extensively studied since the early work of Guinierl, wherein the pre-precipitation state was characterized as an assembly of spherical, ordered, silver-rich G.P. zones. Subsequent x-ray and TEM investigations yielded results in general agreement with this model. However, serious discrepancies were later revealed by the detailed x-ray diffraction - based computer simulations of Gragg and Cohen, i.e., the silver-rich clusters were instead octahedral in shape and fully disordered, atleast below 170°C. The object of the present investigation is to examine directly the structural characteristics of G.P. zones in Al-Ag by high resolution transmission electron microscopy.


Author(s):  
C. Stoeckert ◽  
B. Etherton ◽  
M. Beer ◽  
J. Gryder

The interpretation of the activity of catalysts requires information about the sizes of the metal particles, since this has implications for the number of surface atoms available for reaction. To determine the particle dimensions we used a high resolution STEM1. Such an instrument with its simple optical transfer function is far more suitable than a conventional transmission electron microscope for the establishment of particle sizes. We report here our study on the size and number distribution of Ir particles supported on Al2O3 and also examine simple geometric models for the shape of Ir particles.


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