Structure determination by electron diffraction

Radiation damage is still a limiting factor [123] as higher resolution structural analysis can be performed on radiation resistant organic mole- 

There is no shortage of books, reviews and general articles describing the STM and its applications. These range from a three-volume comprehensive treatise [125] to short readable surveys [126, 127] through many reviews. These may be general [128, 129], review instruments 

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I. Hargittai, The Structure of Volatile Sulfur Compounds, Reidel Publ., Dordrecht, 1985 (structures determined by electron diffraction and microwave spectroscopy). 

Electron energy-loss spectroscopy (EELS) is nowadays widely used to obtain the information with respect to chemical composition, oxidation state and electronic structure of solids. Since all catalytic processes concern the exchange of electrons between the reactants, EELS is extremely valuable in catalysts investigations [9, 49-57], EELS in an electron microscope exhibits the advantage of high spatial resolution in area of interests with simultaneous structure determination by electron diffraction and imaging. 

Our ideal gas thermal functions are essentially an extension of those previously published by Frankiss and Harrison (12) who also reviewed data published prior to their paper. All earlier functions require revision since they are based on liquid state vibrational frequencies and the molecular structure determined by electron diffraction. 

The i.r. and Raman spectra of trivinylborane, B(CH=CH2)3, may be assigned on the basis of the planar, C3h, structure determined by electron diffraction. The values of v(B—C) and v(C=C) are consistent with some B—C 7r-interaction.141 A second, independent, investigation of this vibrational spectrum agrees with these conclusions for the solid phase, but in the fluid phases an additional conformer, of Cs symmetry, was detected.142 This form may be obtained by twisting the vinyl groups out of the molecular olane. 

M.I. Bruce, Structures of Organometallic Compounds Determined by Diffraction Methods, in Comprehensive Organometallic Chemistry II, ed. E.W. Abel, F.G.A. Stone, and G. Wilkinson, (1995), vol. 13.46 Pages 1107-1149 give a comprehensive listing of organotin compounds (ca. 1500 entries) which have had their structure determined by electron diffraction or X-ray diffraction. 

Gas-phase Molecular Structures Determined by Electron Diffraction 348... 

These structures determined by electron diffraction. All other structures were determined by 2T-ray diffraction. 

Nuclear Magnetic Resonance Spectroscopy Nuclear Quadrupole Resonance Spectroscopy Rotational Sp roscopy Characteristic Vibrations of Compounds of Maiit-group Elements Vibrational Spectra of Transition-slement Compounds Vibrational Si ra of Some Co-ordinated Ligands Mossbauer Spectroscopy Gas-phase Molecular Structures Determined by Electron Diffraction. 

How can you assess the quality of a gas-phase structure determined by electron diffraction reported in the literature What are the important criteria to look at ... 

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