The synthesis of the first stage graphite salt C8+AsF6− and its relationship to the first stage graphite/AsF5 intercalate

Reversible Intercalation of Bis(trifluoromethanesulfonyl)imide Anions from an Ionic Liquid Electrolyte into Graphite for High Performance Dual-Ion Cells

“…[3][4][5][6][7] Compared to the limited number of cationic intercalation guests, there is a broad spectrum of different anions capable to form acceptor-type GICs. Examples are hexa-or tetrafluoride guest species, e. g. PF 6 − , AsF 6 − or BF 4 − , [8][9][10] hexa-or tetrachloride compounds like AlCl 4 − , GaCl 4 − or TaCl 6 −11-13 and oxide based guests including SO 4 − , NO 3 − or ClO 4 − . [14][15][16][17] Additionally, also carbon-based anions with relatively large ionic radii, such as trifluoroacetate (CF 3 COO − ), 18 perfluorooctanesulfonate (C 8 F 17 SO 3 − ), 19 tris(trifluoromethanesulfonyl) methide ((CF 3 SO 2 ) 3 C − ) or bis-(trifluoromethanesulfonyl) imide ((CF 3 SO 2 ) 2 N − ) [20][21][22] are capable to form acceptor-type GICs.…”

Compositional, structural and physical studies of some graphite hexafluoroarsenates and their relatives

“…Although o 2 AsF 6 was reported to react with graphite in so 2 ctF as a solvent to produce a first-stage salt characterized as c 8 AsF 6 ,25 ,26 ,35 ,37 it was found in this study that such compounds contain a large amount of (--.7.6 A), when xis larger than --.14, (3) first-stage phases with x smaller than --.14 have larger Ic-spacing (ca. 7.6-8.0 A), (4 …”

Chemical Biodynamics Division. Annual report 1979

“…Part of the reimported dihydroxyactone phosphate is converted into hexose monophosphates via aldolase and fructose-bisphosphatase during the first minutes of darkness. Due to the observed exchange transport reactions, the large difference between the trans-envelope concentration gradients of 3-phosphoglycerate, dihydroxyacetone phosphate and Pi which exist in the light, is completely abolished after [2][3] The rate of ADP-glucose formation from 14C-glucose-6-phosphate and ATP by the soluble fraction of lysed chloroplasts is studied as a function of the levels of metabolites (3-phosphoglycerate, Pi, hexose monophosphate and ATP) as determined in whole chloroplasts in light and darko A change in 3-phosphoglycerate concentration (from 4 mM to lo4 mM, as in whole chloroplasts during light-dark transition) decreases the rate of ADP-glucose formation [6][7] fold. An increase in hexose monophosphate concentration from 2 mM to 6 mM, wh·i ch occurs at the same time in whole chloroplasts, stimulates ADPglucose formation only slightlyo At constant levels of Pi (4 mM) and 3-phosphoglycerate (4 mM), a change in ATP concentration from Oo2 mM to 1 mM causes an immediate [4][5] fold increase in the rate of ADP-glucose formation.…”

“…It is interesting that (~~) is the sequence that provides the most stability for DNA, whereas (~~) is the weakesto Thus, the sequence of the DNA strand being copied is not the important factoro It may contain either two C's or two G's followed by a run of either A's or T's or botho The important factor seems to be the stability of the DNA double strando 29 The algorithm for the promoter sequences is more difficult to understand in terms of DNA structure. However, by studying other DNA sequences we hope to be able to generalize the algorithms and to understand what factors control RNA synthesiso Other computer analyses of base sequences involve: (1) attempts to predict likely sites for mutational events such as addition, deletion, inversion and repetition of DNA sequences, (2) identification of act·ive sites for frameshift mutation, (3) location of sequences that can form cruciforms, (4) prediction of folding in mRNA and transfer RNA, and (5) location of sites where processing of precursor RNAs occurso The prediction of folding in RNA is based on our earlier thermodynamic studies on RNA-model oligonucleotideso Data have been obtained for base pairing, which favors doublestrand formation, and for the effect of unbonded bases in loops or bulges, which reduce doublestrand formationo2-4 The predictions can be tested and our methods improved by direct comparisons with the experimental studies of Professor John Hearst on RNA foldingo…”

“…The nature of the changes that occur in nerve membranes upon depolarization or propagation of the action potential are also being studied by NMR methods to extend information obtained from optical studies. 2,3 Most of the world's usable nitrogen is supplied by a variety of nitrogen-fixing micro-25 organisms that convert atmospheric N2 to reduced forms. The enzyme system responsible, called nitrogenase, is composed of two proteins; the smaller member of the pair contains four nonheme iron atoms while the larger member contains two Mo atoms and about thirty non-heme Fe atoms.…”