Chemical ionization and fast atom bombardment mass spectra of 1-hetero-aryl-silatranes and -germatranes

Gas‐Phase Chemistry and Mass Spectrometry ofGe‐,Sn‐ andPb‐Containing Compounds

“…Additional examples of the application of mass spectrometry have been described for less common compounds such as furyl and thienyl germanes 86 , germatranes 87 , acetylene derivatives of Ge 88 and alkyl and aryltin oxinates 89,90 .…”

Furan derivatives of group IV elements (review)

“…Mass-spectrometric dissociation under electron impact has been studied for various furan derivatives of silicon: laurylhydrosilanes [43], furylalkylsilanes [43], 2,5-bis(trimethylsilyl)furan [461], furylethoxysilanes [462,463], furylsilatranes [464], and 2-carbofunctional 5-furylsilanes [34].…”

Heterylgermatranes

“…The usually high intensity of MH ions of furfurylgermatrane should be emphasized (Table 2): if M + ' peak intensity of 2-furfurylgermatrane in El spectra equals 8% of the maximum [M-R] + peak value, the intensity of the quasi-molecular MH + ion peak reaches 58% in FAB spectra [11].…”

“…3-Methyl-and 3-ethyl-2-thienylgermatrane (11,12) combine antihypoxic activity, high activity in the conditional reaction of passive avoidance and preventive influence on retrogradal amnesia by 84 and 67%, respectively (Table 6). 5-Methyl-2thienylgermatrane (8), 3-thienylgermatrane (6), 5-ethyl-2-thienylgermatrane (9), all belonging to the thienylgermatrane series, show the highest antihypoxic activity.…”