model 402 two-sector mass spectrometer (AMD Intectra GmbH)
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AMD Intectra GmbH
model 402 two-sector mass spectrometer
Model 402 Two Sector Mass Spectrometer, supplied by AMD Intectra GmbH, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/product/model+402+two-sector+mass+spectrometer/model+402+two+sector+mass+spectrometer/10__3390_slash_cryst11020146-45-9-12
Average 90 stars, based on 1 article reviews
Model 402 Two Sector Mass Spectrometer, supplied by AMD Intectra GmbH, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/product/model+402+two-sector+mass+spectrometer/model+402+two+sector+mass+spectrometer/10__3390_slash_cryst11020146-45-9-12
Average 90 stars, based on 1 article reviews
model 402 two-sector mass spectrometer - by Bioz Stars,
2026-10
90/100 stars
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other:Article Title: Weak Interactions in the Structures of Newly Synthesized (–)-Cytisine Amino Acid Derivatives Article Snippet: Article Title: Electron ionization induced mass spectral study of new metameric N-(E)-stilbenyloxyalkylpiperidines, N-(E)-stilbenyloxyalkyl-4-methylpiperidines and N-(E)-stilbenyloxyalkylmorpholines. Article Snippet: Piperidine and morpholine derivatives are pharmacologically active compounds that have been widely studied.. N-(E)-Stilbenyloxyalkyl-substituted piperidines, 4-methylpiperidines and morpholines show significant antimicrobial activity.. The electron ionization (EI) fragmentation of some morpholine and piperidine derivatives has been reported in the literature. Article Title: Mass spectrometry of metal complexes of bis-quinolizidine alkaloids: electron ionization and fast atom bombardment mass spectral study of copper(II) (-)-sparteine and (-)-alpha- isosparteine complexes. Article Snippet: the complexes of transition metals and bis-quinolizidine alkaloids have found many applications as useful reagents in organic chemistry.1 Some of these complexes have been used in directing stereoselective synthesis.2–17 considerable effort has been devoted to the study of transition metal complexes with neutral alkaloid (–)-sparteine and its diastereoisomer (–)-a-isosparteine.1,18–30 the (–)-sparteine molecule consists of four rings, two of which (A/B) form a double chair system of trans-quinolizidine, which is relatively resistant (for thermodynamic reasons) to conformational–configurational changes. the second system of rings (c/D) is much more susceptible to inversion at the N16 nitrogen atom and it can attain either the trans boat–chair or the cis double chair conformation.. According to Hassnot,31 sparteine adopts exclusively the c-boat conformer. theoretical calculations have confirmed that the free base of sparteine has one predominant conformer with a chair–chair trans-quinolizidine A/B system and boat–chair trans-quinolizidine c/D system (figure 1). the structure of (–)-a-isosparteine has been determined in the solid state (and in solution) to consist of four chair forms and to have both the A/B and the c/D ring junctions trans (figure 1). the stereochemical relationship between these two sparteines is very Mass spectrometry of metal complexes of bis-quinolizidine alkaloids: electron ionization and fast atom bombardment mass spectral study of copper(II) (–)-sparteine and (–)-a-isosparteine complexes Article Title: Electron ionization induced mass spectral study of new isomeric 2-o- (m- and p-)nitrobenzylthio-5-piperidinomethyl(morpholinomethyl)uracils and 1,2-di-o-(m- and p-)nitrobenzyl-5-piperidinomethyl(morpholinomethyl)-2-thiouracils. Article Snippet: Metal ion complex derivatives of a new antimetabolite of thymine, 5-morpholinomethyl-2-thiouracil (MMTU), have been reported to constitute a novel class of compounds showing antibacterial, antifungal and antitumor activity.. As a result of this,wehave investigatedapreviously unknown series of compounds of potential biological activity, namely benzyl-substituted derivatives of MMTU and 5-morpholinomethyl-6methyl-2-thiouracil, as well as 5-piperidinemethyl-2-thiouracil and 5-piperidinemethyl-6-methyl-2-thiouracils.. The mass spectral behaviour of themodified derivatives of thio analogues of pyrimidine bases has been widely studied. Article Title: Variety of polymorphic forms contrasted with uniform crystal packing in sparteine ML2 complexes: Crystal structure, spectroscopic and magnetic properties of (−)-α-isosparteine and (−)-sparteine complexes with CuBr2 Article Snippet: 0022-2860/$ see front matter 2009 Elsevier B.V. A doi:10.1016/j.molstruc.2009.01.013 * Corresponding authors.. Tel.. : +48 61 829 1354; fa E-mail address: beatakoz@amu.edu.pl (B. Jasiewic This paper reports the synthesis, thermogravimetric and magnetic measurements for ( )-a-isosparteine CuBr2 complex (1) and the existence of the fourth polymorph (2) of ( )-sparteine CuBr2 complex. |