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301.
Inside Cover: A Vastly Increased Chemical Variety of RNA Modifications Containing a Thioacetal Structure (Angew. Chem. Int. Ed. 26/2018)
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Christina Dal Magro Patrick Keller Dr. Annika Kotter Stephan Werner Dr. Victor Duarte Dr. Virginie Marchand Dr. Michael Ignarski Anja Freiwald Dr. Roman‐Ulrich Müller Prof. Dr. Christoph Dieterich Prof. Dr. Yuri Motorin Dr. Falk Butter Dr. Mohamed Atta Prof. Dr. Mark Helm 《Angewandte Chemie (International ed. in English)》2018,57(26):7536-7536
302.
Mabrouk Majdi Marchand Mickael Russello Aldo Baronnet Jean Marie Lemont Florent 《Plasma Chemistry and Plasma Processing》2015,35(1):45-60
Plasma Chemistry and Plasma Processing - A process for the destruction of organic liquid waste has been developed in which a nontransferred arc plasma torch is operated with oxygen as the plasma... 相似文献
303.
Simon G. Bott Alan P. Marchand Sulejman Alihodzic 《Journal of chemical crystallography》1998,28(4):259-266
Crystal structures of four dibromomethylene-functionalized hexa- and heptacyclotetradecane cages are reported. 7-(Dibromomethylene)heptacyclo[6.6.0.02,6.03,13.04,11.05,9.010,14]tetradecane (3): orthorhombic, Pnma, a = 14.744(1), b = 11.237(1), c = 7.4625(7) Å Z = 4; R = 0.0531 for 504 observed reflections. 7,12-Bis(dibromomethylene)heptacyclo[6.6.0.02,6.03,13-04,11 .05,9.010,14]tetradecane (4): monoclinic, I2/a, a = 11.257(1), b = 9.5844(8), c = 13.884(2) Å, = 92.254(8)° Z = 4; R = 0.0413 for 663 observed reflections. 10,14-bis(dibromomethylene)hexacyclo[6.6.0.02,6.03,13.04,11.05,9]tetradecane (6): monoclinic, P21/n, a = 8.118(1), b = 15.273(4), c = 12.826(3) Å, = 104.20(1)° Z = 4; R = 0.0384 for 1392 observed reflections. 14-(dibromomethylene)hexacyclo[6.6.0.02,6.03,13.04,11.05,9]tetradecan-10-one (7): monoclinic, P21/n, a = 8.2879(7), b = 15.273(1), c = 10.0565(9) Å, = 92.271(8)° Z = 4; R = 0.0320 for 1402 observed reflections. The functional groups lead to slight shortening of bond lengths. 相似文献
304.
Simon G. Bott D. Rajagopal Alan P. Marchand Kaipenchery A. Kumar 《Journal of chemical crystallography》1996,26(6):425-428
The compound crystallizes in the triclinic space group,
, witha=6.7702(4),b=7.0180(4),c=9.1960(7) Å, =92.457(6), =96.150(6), =93.444(5)°, andZ=2. The structure contains a rather short intramolecular H...H contact of 2.26(4) Å. 相似文献
305.
Simon G. Bott Alan P. Marchand Eric Zhiming Dong 《Journal of chemical crystallography》1999,29(3):329-333
Base-promoted reaction of 11-methylenepentacyclo[5.4.0.02,6.03,10.05, 9]undecan-8-one (5) with diethyl diazomethylphosphonate when performed in the presence of excess cyclohexene, resulted in the formation of the corresponding cycloalkylidenecarbene, 6, which subsequently was trapped in situ to afford 8-methylene-11-(7-bicyclo[4.1.0]heptylidene)pentacyclo-[5.4.0.02, 6.03, 10.05, 9]undecane (7, obtained in 44% yield as a mixture of exo, endo isomers). Subsequent reaction of 7 with dichlorocarbene (generated under phase transfer catalytic conditions) produced the corresponding mono- and di-:CCl2 adducts [i.e., 8 (64% yield) and 9 (5% yield), respectively]. The structure of 9 was established unequivocally via application of single crystal X-ray analysis: Triclinic, P1¯, a = 6.276(2), b = 8.700(2), c = 18.550(3) Å, = 76.52(3), = 87.59(3), = 70.88(4)° Z = 2; D
calc 1.486 g cm–3. 相似文献
306.
307.
Evgueni Kassianov Thomas Ackerman Roger Marchand Mikhail Ovtchinnikov 《Journal of Quantitative Spectroscopy & Radiative Transfer》2003,77(4):395-416
In the second part of our two-part paper, we estimated the accuracy and robustness of the approximated equations for the mean radiance that were derived in Part I. In our analysis we used the three-dimensional (3D) cloud fields provided by (i) the stochastic Boolean model, (ii) large-eddy simulation model and (iii) satellite cloud retrieval. The accuracy of the obtained equations was evaluated by comparing the ensemble-averaged radiative properties that were obtained by the numerical averaging method (reference) and the analytical averaging method (approximation). The robustness of these equations was estimated by comparing the domain-averaged radiative properties obtained by using (i) the full 3D cloud structure (reference) and (ii) the bulk cloud statistics (approximation). It was shown that the approximated equations could provide reasonable accuracy (∼15%) for both the ensemble- and domain-averaged radiative properties. 相似文献
308.
J.W. Vanderhoff M.S. El-Aasser F.J. Micale E.D. Sudol CM. Tseng A. Silwanowicz 《Journal of Dispersion Science and Technology》2013,34(3-4):231-246
Monodisperse polystyrene latexes are prepared by seeded emulsion polymerization; however, sizes larger than 2μm are difficult to prepare because of the creaming and settling of the particles, and their sensitivity to mechanical shear. Preparation in space would obviate the creaming and settling, and allow agitation just sufficient for good heat transfer and mixing. Three polymerizations yielding 3-5μm size particles were carried out successfully on the third flight of the “Columbia” launched March 22, 1982; however, four polymerizations yielding sizes up to 10μm on the fourth flight launched June 27, 1982, were incomplete owing to apparatus malfunction. The results of these polymerizations and the prospects of developing a preparative space process are reviewed 相似文献
309.
Pascal Pellon Cline Le Goaster Gilles Marchand Beatrice Martin Loic Toupet 《Heteroatom Chemistry》1997,8(2):123-128
The syntheses, from the triphenylphosphine-borane complex, of chiral 1,3-oxaphospholanes and optically active bis-1,3-oxaphospholanes, obtained by cleavage of a carbon-phosphorus bond with lithium, are described. © 1997 John Wiley & Sons, Inc. 相似文献
310.
Summary Para-hydroxybenzoic acid (p-HBA) has been used as indirect UV detection buffer in capillary zone electrophoresis (CZE). Being
an UV-absorbing dibasic acid, p-HBA provides both the necessary buffering for pH control over a wide range and UV absorbance
for indirect detection. With sodium dodecyl sulfate (SDS) as a probe, a CZE method using p-HBA solution as running buffer
was developed to analyze anions, especially ones with low electrophoretic mobilities. The method was used to separate homologous
series of sulfonates, SDS in a formulation sample, and SDS in a standard. 相似文献