Synthesis and structures of bis(tetramethylpiperidino)aluminum halides. X-ray crystal structures of tmp2AlX (X = Cl, Br, I) and [tmp2Al(m-F)]2
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Monoglyme forms a mol. 1:1 adduct with AlBr3 which dissocs. into the ions AlBr2(DME)2+ and AlBr4- in DME, CH2Br2, and CDCl3 as solvents. A hexacoordinated Al center is present in the solid adduct AlBr3.diglyme. The O and Br atoms are arranged in a meridion ...
We report here a new method to obtain electronic spectra of biomolecular ions that are produced in the gas phase by electrospray and cooled to ~10K in a 22-pole ion trap, and we demonstrate this technique by applying it to protonated tryptophan and tyrosin ...
Because of the importance of helices in the secondary structure of proteins, we have undertaken a study of their spectroscopy, fragmentation patterns and conformations in the gas phase. In this work, we describe the effects of substitution at the N-terminu ...
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In situ Fourier transform infrared (FTIR) absorption spectroscopy has been used to determine the fractional depletion of silane in a radio-frequency (ri) glow discharge. The technique used a simple single-pass arrangement and was implemented in a large-are ...
2,2,6,6-Tetramethylpiperidine (tmpH) reacts smoothly with AlX3 (X = Cl, Br, I) and AlH2Cl.2THF to give the addn. compds. tmpH.AlX3 (X = Cl, Br, I) and tmpH.AlH2Cl, resp. These adducts of the secondary amine tmpH are stable and do not undergo intramol. elim ...