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Galina S. Zaitseva Sergei S. Karlov Gleb V. Pen'kovoy Andrei V. Churakov Judith A. K. Howard Bettina A. Siggelkow Evgueni V. Avtomonov Jrg Lorberth 《无机化学与普通化学杂志》1999,625(4):655-660
The title compounds, viz. C13H8(R)Ge · (OCHMeCH2)3N ( 1 : R = H, 2 : R = Me3Si; 3 : R = Me3Ge) were prepared as mixtures of diastereomers by the reaction of N(CH2CHMeOSnAlk3)3 ( 7 : Alk = Et; 8 : Alk = Bu) with C13H8(R)GeBr3 ( 4 : R = H, 5 : R = Me3Si; 6 : R = Me3Ge), respectively. The synthesis of C13H8(Me3Sn)Ge · (OCHMeCH2)3N ( 13 ) by the reaction of germatrane ( 1 ) with Me3SnNMe2 is reported. Identity and structures were established by elemental analyses, 1H and 13C NMR spectroscopy and mass spectrometry. The crystal structure of 1 was determined by X‐ray diffraction methods. 相似文献
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A software package for quantifying elements in solids from energy-dispersive x-ray fluorescence data is described. The algorithm is based on the fundamental parameter approach and facilitates the simultaneous determination of several elements at widely varying concentrations. The software comprises three programs. One program, for spectrometer control and data acquisition, resides in a dedicated microcomputer. The two other programs, for spectra deconvulution and data evaluation, reside in a larger central computer. On-line communication between the computers is feasible, and the system facilitates the implementation of new improved programs. The performance of the system was tested on standard reference materials, and satisfactory accuracy was obtained for up to 21 elements. 相似文献