Gas-phase fragmentation of the Ag+—phenylalanine complex: Cation—π interactions and radical cation formation
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چکیده
منابع مشابه
Change of the tautomeric preference for radical cation of pyruvic acid. DFT studies in the gas phase
Keto-enol tautomerism was investigated for ionized pyruvic acid using the DFT(B3LYP) method and the larger basis sets [6-31++G(d,p), 6-311++G(3df, 3pd) and aug-cc-pVDZ]. Change of the tautomeric preference was observed when going from the neutral to ionized tautomeric mixture. Ionization favors the enolization process (ketoenol) of pyruvic acid, whereas the ketonization (ketoenol) is preferred ...
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15 صفحه اولchange of the tautomeric preference for radical cation of pyruvic acid. dft studies in the gas phase
keto-enol tautomerism was investigated for ionized pyruvic acid using the dft(b3lyp) method and the larger basis sets [6-31++g(d,p), 6-311++g(3df, 3pd) and aug-cc-pvdz]. change of the tautomeric preference was observed when going from the neutral to ionized tautomeric mixture. ionization favors the enolization process (ketoenol) of pyruvic acid, whereas the ketonization (ketoenol) is preferred ...
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Electrospray ionization (ESI) mass spectrometry of methanolic solutions of mixtures of the copper salt (2,2′:6′,2′′-terpyridine)copper(II) nitrate monohydrate ([Cu(II)(tpy)(NO3)2]·H2O) and a tripeptide GXR (where X = 1 of the 20 naturally occurring amino acids) yielded [Cu(II)(tpy)(GXR)]•2+ ions, which were then subjected to collision induced dissociation (CID). In all but one case (GRR), these...
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ژورنال
عنوان ژورنال: Journal of the American Society for Mass Spectrometry
سال: 2002
ISSN: 1044-0305,1879-1123
DOI: 10.1016/s1044-0305(02)00353-7