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Journal articles on the topic 'C. P. E'

Author: Grafiati

Published: 4 June 2021

Last updated: 20 February 2023

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1

Hietkamp, Sibbele, Thomas Lebbe, Gerd U. Spiegel, and Othmar Stelzer. "Oligophosphaalkane, XVII Funktionalisierte Tri-, Tetra-und Pentaphosphaalkane mit der Donorsequenz P-C-C-P und P-C-C-C-P/Oligophosphaalkanes, XVII Functionalized Tri-, Tetra-and Pentaphosphaalkanes with the Donor Sequence P-C-C-P and P-C-C-C-P." Zeitschrift für Naturforschung B 42, no. 2 (February 1, 1987): 177–85. http://dx.doi.org/10.1515/znb-1987-0210.

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Abstract Starting with the secondary phosphanes R2PH (R = Me, Ph, iPr) and the vinyl-or allylmethylphosphinic acid isopropylesters, the triphosphaalkanes R2P-[CH2]3 -PMe -[CH2]2 -PMeH containing one terminal PH-group have been synthesized in a multiple step synthesis. The tertiary-secondary phosphanes R2P-[CH2]3 -PMeH obtained as intermediates may be used for the syntheses of hybrid donor systems PPN. The P-C-skeletons of the tetra-and pentadentate oligophosphaalkanes have been built up by a free radical initiated addition of the vinyl or allyl compounds CH2=CH-P(NEt2)2 or CH2 =CH-CH2-P(O)(OiPr)Me to disecondary or disecondary-tertiary phosphanes, HMeP-[CH2]n-PMeH (n = 2, 3) or HMeP-[CH2]3 -PPh-[CH2]3 -PMeH, respectively. Methanolysis of the tetra-and pentaphosphaalkanes with terminal P-NEt2 functional groups affords the methoxy derivatives in almost quantitative yield. While the terminal P(NEt2)2 groups in the oligophosphaalkanes cannot be reduced by LiAlH4 , the corresponding methoxy derivatives react immediately to give the primary-tertiary phosphanes.

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2

Pol, Roman. "On metrizable E with C p ( E ) ≇ C p ( E ) × C p ( E )." Mathematika 42, no. 1 (June 1995): 49–55. http://dx.doi.org/10.1112/s0025579300011347.

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3

Krupski, Mikołaj, and Witold Marciszewski. "A metrizable X with C p (X) not homeomorphic to C p (X) × C p (X)." Israel Journal of Mathematics 214, no. 1 (July 2016): 245–58. http://dx.doi.org/10.1007/s11856-016-1373-y.

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4

Yoshifuji, Masaaki. "Chemistry of Several Sterically Bulky Molecules with P=P, P=C, and C≡P Bond." Molecules 27, no. 5 (February 25, 2022): 1557. http://dx.doi.org/10.3390/molecules27051557.

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Several sterically protected, low-coordinate organophosphorus compounds with P=P, P=C, and C≡P bond are described in this study. Molecules such as diphosphenes, phosphaalkenes, 1-phosphaallenes, 1,3-diphosphaallenes, 3,4-diphosphinidenecyclobutenes, and phosphaalkynes are stabilized with an extremely bulky 2,4,6-tri-t-butylphenyl (Mes*) group. The synthesis, structures, physical, and chemical properties of these molecules are discussed, together with some successful applications in catalytic organic reactions.

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5

Schlapp-Hackl, Inge, Christoph Falschlunger, Kathrin Zauner, Walter Schuh, Holger Kopacka, Klaus Wurst, and Paul Peringer. "Syntheses and crystal structures of [IrIII{C(CHCO2Et)(dppm)2-κ4 P,C,C′,P′}ClH]Cl·2.75CH2Cl2 and its derivatives, [IrIII{C(CHCO2Et)(dppm)2-κ4 P,C,C′,P′}(CH2CO2Et)Cl]Cl·CH3OH·0.5H2O, [IrIII{C(CHCO2Et)(dppm)2-κ4 P,C,C′,P′}Cl2]Cl·CH3OH·2H2O and [IrIII{C(CHCO2Et)(dppm)2-κ4 P,C,C′,P′}(CH2CO2Et)(CO)]Cl2·2CH2Cl2·1.5H2O." Acta Crystallographica Section E Crystallographic Communications 75, no. 1 (January 1, 2019): 12–20. http://dx.doi.org/10.1107/s2056989018017024.

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The common feature of the four iridium(III) salt complexes, (bis{[(diphenylphosphanyl)methyl]diphenylphosphanylidene}(ethoxyoxoethanylidene)methane-κ4 P,C,C′,P′)chloridohydridoiridium(III) chloride methylene chloride 2.75-solvate (4), (bis{[(diphenylphosphanyl)methyl]diphenylphosphanylidene}(ethoxyoxoethanylidene)methane-κ4 P,C,C′,P′)chlorido(ethoxyoxoethanido)iridium(III) chloride–methanol–water (1/1/0.5) (5), (bis{[(diphenylphosphanyl)methyl]diphenylphosphanylidene}(ethoxyoxoethanylidene)methane-κ4 P,C,C′,P′)dichloridoiridium(III) chloride–methanol–water (1/1/2) (6) and (bis{[(diphenylphosphanyl)methyl]diphenylphosphanylidene}(ethoxyoxoethanylidene)methane-κ4 P,C,C′,P′)carbonyl(ethoxyoxoethanide)iridium(III) dichloride–methylene chloride–water (1/2/1.5) (7) or in terms of their formulae [Ir(C55H50O2P4)ClH]Cl·2.75CH2Cl2 (4), [Ir(C4H7O2)(C55H50O2P4)Cl]Cl·CH3OH·0.5H2O (5), [Ir(C55H50O2P4)Cl2]Cl·CH3OH·2H2O (6) and [Ir(C4H7O2)(C55H50O2P4)(CO)]Cl2·2CH2Cl2·1.5H2O (7) is a central IrIII atom coordinated in a distorted octahedral fashion by a PCCP ligand system and two additional residues, such as chlorides, a hydride, a carbonyl or an alkyl unit. Thereby, the PCP pincer ligand system and the residue trans to the carbodiphosphorane (CDP) C atom surround the iridium(III) transition metal in the equatorial plane under the formation of two five-membered dissimilar chelate rings [C—CCDP—P (4, 5, 6 and 7) for the first ring: 120.2 (3), 121.9 (5), 111.2 (3) and 121.7 (2) °; for the second ring: 112.1 (3), 113.5 (5), 120.5 (3) and 108.3 (2)°]. A cyclopropane-like heterocycle is positioned approximately orthogonal (84.21–88.85°) to the equatorial plane, including an alkylidene bridge connecting the IrIII atom and the coordinating CDP atom of the PCP subunit. In general, the neutral PCCP ligand system coordinates the metal in a tetradentate way via three Lewis acid/base bonds and by an alkylidene unit presenting strengthened interactions. In all the crystal structures, (disordered) solvent molecules are present in the voids of the packed molecules that interact with the positively charged complex and its chloride counter-ion(s) through weak hydrogen bonding.

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6

Karsch, Hans H., Brigitte Deubelly, Gregor Grauvogl, and Gerhard Müller. "Oxidative Verknüpfung von Phosphinomethanidliganden an Titanocen- und Bismutzentren: selektive CC-, PC- und PP-Bindungsbildung." Journal of Organometallic Chemistry 459, no. 1-2 (October 1993): 95–105. http://dx.doi.org/10.1016/0022-328x(93)86060-u.

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7

Wesseling, Rein. "Joined Cases C-238/99 P, C-244/99 P, C-245/99 P, C-247/99 P, C-250/99 P to C-252/99 P and C-254/99 P, Limburgse Vinyl Maatschappij NV (LVM) and Others v. Commission, [2002] ECR 1-8375." Common Market Law Review 41, Issue 4 (August 1, 2004): 1141–55. http://dx.doi.org/10.54648/cola2004039.

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8

KNAZIK, STEPHEN R. "P EDIATRIC P REHOSPITAL C ARE." Prehospital Emergency Care 6, no. 4 (January 2002): 478. http://dx.doi.org/10.1080/10903120290938210.

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9

Castillo, F. "P? A? E? C?-E? P?" Computers & Chemical Engineering 19, no. 1 (June 11, 1995): S89—S94. http://dx.doi.org/10.1016/0098-1354(95)00157-w.

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10

Grobe, Joseph, Duc Le Van, and Thomas Großpietsch. "Reaktive E=C(p-p)π-Systeme, XXVIII / Reactive E=C(p-p)π-Systems, XXVIII." Zeitschrift für Naturforschung B 46, no. 8 (August 1, 1991): 978–84. http://dx.doi.org/10.1515/znb-1991-0802.

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The reaction of perfluoro-2-phosphapropene F3CP=CF2 (1) with tert-butylamine or isopropylamine in a 1:3 molar ratio leads to the novel iminomethylene phosphanes F3CP=C=N(tBu) [(2), 30% yield] and F3CP=C=N(iPr) [(3), 5%], respectively. 2 slowly decomposes at room temperature giving tert-butylisonitrile and the cyclophosphanes (F3CP)n (n = 3, 4, 5). 3 is found to be less stable than 2 and for example is attacked by primary amines. The reaction of 2 with 2,3-dimethyl-1,3-butadiene or trimethylphosphane yields, on the one hand, the cycloaddition product of bis(trifluormethyl)diphosphene (4), and on the other hand, the phosphorus ylid Me3P=PCF3 (5) together with (tBu)NC.2 and 3, respectively, are not obtained from (F3C)2PH and the corresponding primary amines in a series of HF elimination and H2NR addition reactions. The main products formed from a 1:4 molar mixture of (F3C)2PH and H2N(iPr) in a one-pot procedure were shown to be the chiral phosphanes F3CP[NH(iPr)]C[=N(iPr)]H (6), F3CP[NH(iPr)]CHF2 (7) and F3CP[NH(iPr)]CH2F (8) (60:35:5). The corresponding reaction of (F3C)2PH with H2N(tBu) mainly yields the compound F3CP[NH(tBu)]CH2F (10).

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11

Albers, Thomas, Joseph Grobe, Duc Le Van, Bernt Krebs, and Mechtild Läge. "Reaktive E=C (p-p)π-Systeme, XL. / Reactive E=C(p-p)π Systems, XL." Zeitschrift für Naturforschung B 50, no. 1 (January 1, 1995): 94–100. http://dx.doi.org/10.1515/znb-1995-0119.

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The reaction of bis(trifluoromethyl)arsane 2 with secondary amines R2NH in a molar ratio of 1:3 at -60 °C allows the preparation of trifluoromethyl arsaalkenes of the type F3CAs=C(F)NR2 in moderate yields (15-35%) [NR2 = NMe2 (3a), NMeEt (3b), NEt2 (3c)]. The main product of the reaction of 2 with Me2NH is the 1,1-diamino compound F3CAs=C(NMe2)2 (4a). With ethyl(isopropyl)- or di(isopropyl)amine the corresponding derivatives F3CAs=C(F)NEt(iPr) (3d) and F3CAs=C(F)N(iPr)2 (3e), respectively, are formed only in traces (3d), or not at all (3 e). However, 3d and 3e can be prepared by reacting perfluoro-2-arsapropene with the corresponding secondary amines. The new compounds 3 a to 3 e can be stored at 20 °C in chloroform solution for hours without decomposition and show Z configuration without exception. The molecular structure of 1-(diethylamino)-1,3,3,3-tetrafluoro-2-arsapropene 3c, determined by an X-ray diffraction study on single crystals, indicates a strong electronic interaction of the lone pair on nitrogen with the AsC double bond. This results in a trigonal planar arrangement at the nitrogen atom, a strongly shortened sp2-CN-bond (1.312 Å), an elongated AsC distance (1.867 Å), and an almost planar skeleton of the molecule.

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12

Sarkar, Manjula. "P A Cathetor V/s. A P C O." Indian Journal of Anaesthesia and Analgesia 3, no. 2 (2016): 169–77. http://dx.doi.org/10.21088/ijaa.2349.8471.3216.16.

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13

Escudié, Jean, and Gabriela Nemeş. "Phosphasilaallenes >Si=C=P− and phosphagermaallenes >Ge=C=P−." Comptes Rendus Chimie 13, no. 8-9 (August 2010): 954–63. http://dx.doi.org/10.1016/j.crci.2010.03.012.

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14

Pietraszko, J., G. Agakishiev, C. Agodi, A. Balanda, G. Bellia, D. Belver, A. Belyaev, et al. "DIELECTRON PRODUCTION IN C + C AND p + p COLLISIONS WITH HADES." International Journal of Modern Physics A 22, no. 02n03 (January 30, 2007): 388–96. http://dx.doi.org/10.1142/s0217751x07035574.

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The High Acceptance Di-Electron Spectrometer HADES1 has been constructed at the SIS accelerator (GSI Darmstadt) to investigate electron-positron pairs produced in proton, pion and heavy ion induced reactions. The main goal of these studies is to explore properties of hadrons in nuclear matter. The apparatus and the experimental results from C + C at 2.0 AGeV and 1.0 AGeV and p + p at 2.2 GeV compared with Monte-Carlo events from a generator based on known cross-sections and branching ratios are presented.

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15

MCGEORGE, FRANK. "C OMMON H AND P ROBLEMS IN P RIMARY C ARE." Prehospital Emergency Care 4, no. 2 (January 2000): 199. http://dx.doi.org/10.1080/10903120090941515.

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16

McClard, Ronald W., Thomas S. Fujita, Kay E. Stremler, and C. Dale Poulter. "Novel phosphonylphosphinyl (P-C-P-C-) analogs of biochemically interesting diphosphates. Syntheses and properties of P-C-P-C-, analogs of isopentenyl diphosphate and dimethylallyl diphosphate." Journal of the American Chemical Society 109, no. 18 (September 1987): 5544–45. http://dx.doi.org/10.1021/ja00252a051.

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17

Nordlander, Kristina. "Joined Cases C-189/02 P, C-202/02 P, C-205/02 P to C-208/02 P and C-213/02 P, Dansk Rørindustri and others v. Commission." Common Market Law Review 43, Issue 2 (April 1, 2006): 571–82. http://dx.doi.org/10.54648/cola2006002.

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18

Yang, Chengmin. "Projections $P$ on $C=C[-1,1]$ which interpolate at $\dim (P(C))$ or more points." Proceedings of the American Mathematical Society 115, no. 3 (March 1, 1992): 669. http://dx.doi.org/10.1090/s0002-9939-1992-1089415-4.

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19

Turturro, Michael A. "P AIN , P RIORITIES, AND P REHOSPITAL C ARE." Prehospital Emergency Care 6, no. 4 (January 2002): 486–88. http://dx.doi.org/10.1080/10903120290938238.

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20

Grobe, Joseph, and Duc Le Van. "Reaktive EC (p-p)π-systeme." Journal of Organometallic Chemistry 311, no. 1-2 (September 1986): 37–43. http://dx.doi.org/10.1016/0022-328x(86)80216-9.

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21

Grobe, Joseph, Duc Le Van, Wolfgang Meyring, Bernt Krebs, and Mechthild Dartmann. "Reaktive EC (pp)π-Systeme." Journal of Organometallic Chemistry 340, no. 2 (February 1988): 143–51. http://dx.doi.org/10.1016/0022-328x(88)80070-6.

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22

Grobe, Joseph, Duc Le Van, and Joachim Welzel. "Reaktive EC (pp) π-Systeme." Journal of Organometallic Chemistry 340, no. 2 (February 1988): 153–60. http://dx.doi.org/10.1016/0022-328x(88)80071-8.

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23

Grobe, Joseph, Duc Le Van, Wolfgang Meyring, Bernt Krebs, and Mechtild Dartmann. "Reaktive EC (pp) π-Systeme." Journal of Organometallic Chemistry 346, no. 3 (June 1988): 361–77. http://dx.doi.org/10.1016/0022-328x(88)80137-2.

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24

Grobe, Joseph, Jürgen Szameitat, and Manfred Möller. "Reaktive EC (pp) τ-systeme." Journal of Organometallic Chemistry 344, no. 1 (April 1988): 61–69. http://dx.doi.org/10.1016/0022-328x(88)80213-4.

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25

Grobe, Joseph, Duc Le Van, Bernt Krebs, Mechtild Dartmann, F. Gordon, A. Stone, and Jürgen Szameitat. "Reaktive EC (p—p) π-Systeme." Journal of Organometallic Chemistry 399, no. 1-2 (December 1990): 189–98. http://dx.doi.org/10.1016/0022-328x(90)80096-i.

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26

Grobe, Joseph, Marianne Hegemann, and Duc Le Van. "Reaktive E=C(p – p)π-Systeme, XX [1] / Reactive E=C(p–p)π-Systems, XX [1]." Zeitschrift für Naturforschung B 45, no. 2 (February 1, 1990): 148–60. http://dx.doi.org/10.1515/znb-1990-0208.

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The vapour phase pyrolysis of the stannylphosphane Me3SnP(CF3)C2F5 (5) at 330 °C leads to 1,2-elimination of Me3SnF yielding a mixture of the two isomeric perfluorophosphaalkenes F3CP=C(F)CF3 (3) and F5C2P=CF2 (4) in a 3:1 molar ratio. 3 is more labile than 4 and proves to be similar to the perfluoro-3-phosphapent-2-ene F5C2P=C(F)CF3 (2) with respect to NMR data and chemical properties. On the other hand 4 resembles the perfluoro-2-phosphapropene F3CP=CF2 (1). These results have been deduced from the following reactivity studies: (i) The rate of dimerization being higher for 3 than for 4. (ii) Reaction of the mixture with diethylamine yielding the aminophosphane derivative F3CP(NEt2)CF(H)CF3 (13) as a product of 3 and the C-aminophosphaalkene F5C2P=C(F)NEt2 (14) as the derivative of 4. (iii) Reaction of the mixture with methanol giving the methoxyphosphane F3CP(OMe)CF(H)CF3 (15) from 3 and the secondary phosphane F5C2P(H)CF2OMe (16) from 4 as precursors. 3 and 4 prove to be effective dienophiles in reactions with 2,3-dimethyl-1,3-butadiene and 1,3-cyclohexadiene, respectively, producing the corresponding Diels-Alder adducts 9 to 12. For these preparations 5 can be used as an equivalent of 3 in a one-pot procedure at 70 °C. On the other hand the phosphane HP(CF3)C2F5 (8) is suited as precursor for 3 in preparing HX addition products.

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27

Grobe, Joseph, Gudrun Lange, and Duc Le Van. "Reaktive E=C(p – p) π-Systeme, XXI [1] / Reactive E=C(p – p)π-Systems, XXI [1]." Zeitschrift für Naturforschung B 45, no. 3 (March 1, 1990): 299–307. http://dx.doi.org/10.1515/znb-1990-0305.

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1λ3,3λ3-Diphosphanes of the type R2PCF2P(H)CF3 [R = Me (3), Et (5), Cyclohexyl (6), Ph (7)] are formed in acceptable yields (40-75%) by reacting perfluoro-2-phosphapropene F3CP=CF2 (1) with the corresponding secondary phosphanes R2PH. By reaction with sulfur, compounds 3, 5 and 7 selectively yield the corresponding monosulfur derivates R2P(S)CF2P(H)CF3 [R = Me (8), Et (9), Ph (10)]. Treatment of 3 or 7 with dimethylamine (molar ratio 1/2) leads via HF elimination and addition of Me2NH to the aminophosphanes R2PCHFP(NMe2)CF3 [R = Me (11), Ph (12)]. In a similar procedure HF has been eliminated from 3 by 1,4-diazabicyclo[2.2.2]octane (DABCO), and on addition of methanol or ethanol to the 1,3-diphosphapropene intermediate, the alkoxy compounds Me2PCHFP(OR)CF3 [R = Me (13), Et (14)] have been obtained.

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28

Rhainds, Marc, Edward G. Kettela, and Peter J. Silk. "C. P. Alexander review." Canadian Entomologist 144, no. 3 (May 1, 2012): 379–95. http://dx.doi.org/10.4039/tce.2012.18.

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AbstractThe Canadian registration in 2007 of Disrupt SBW Micro-Flakes®, a pheromone-based product for control of spruce budworm,Choristoneura fumiferana(Clemens), paved the way for large-scale trials to test the practicality of mating disruption as a commercial pest management strategy. We review results from field and laboratory experiments on pheromone-based mating disruption of spruce budworm conducted from 1974 to 2008. Application of pheromone from the ground or the air consistently reduced the orientation of males toward pheromone sources. Mating disruption also reduced the mating success of caged or tethered females in 15 of 16 field studies where this parameter was recorded, but had only a limited effect on the mating success of feral females. No consistent difference in the density of egg masses in control and treated plots was observed, which has often been attributed to immigration of gravid females into pheromone-treated plots. Laboratory studies suggest that false-trail following is the predominant mechanism underlying mating disruption in spruce budworm. The enhanced mating success of females with increasing population density suggests that mating disruption should target low-density emergent populations during the initial phase of an outbreak. Constraints that may limit the potential of mating disruption as a management tool include (1) difficulties associated with obtaining accurate sampling estimates at low population density to forecast the onset of outbreaks, (2) potential behavioral adaptations by which females enhance their mating success when the atmosphere is treated with pheromone, and (3) long-range dispersal of females by flight.

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29

Papalexakis, Evangelos E., Christos Faloutsos, and Nicholas D. Sidiropoulos. "P ar C ube." ACM Transactions on Knowledge Discovery from Data 10, no. 1 (July 27, 2015): 1–25. http://dx.doi.org/10.1145/2729980.

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30

Thomas, R. S. "P. C. Wren'sBeau Geste." Children's Literature in Education 21, no. 4 (December 1990): 209–17. http://dx.doi.org/10.1007/bf01466545.

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31

Petrar, Petronela Maria, Gabriela Nemes, Ioan Silaghi-Dumitrescu, Henri Ranaivonjatovo, Heinz Gornitzka, and Jean Escudié. "1,3-Digermacyclobutanes with exocyclic CP and CPS double bonds." Chemical Communications, no. 40 (2007): 4149. http://dx.doi.org/10.1039/b708308d.

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32

Eberl, T. "Di-electron production in C+C and p+p collisions with HADES." European Physical Journal C 49, no. 1 (October 27, 2006): 261–67. http://dx.doi.org/10.1140/epjc/s10052-006-0097-2.

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33

Tian, Gang, and Dongyi Wei. "Asymptotic of Enumerative Invariants in $${\mathbb {C}}P^2$$ C P 2." Peking Mathematical Journal 1, no. 2 (October 8, 2018): 125–40. http://dx.doi.org/10.1007/s42543-018-0004-4.

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34

Thomas, Stephen H., and Kenneth A. Williams. "F LIGHT P HYSICIAN T RAINING P ROGRAM —C ORE C ONTENT." Prehospital Emergency Care 6, no. 4 (January 2002): 458–60. http://dx.doi.org/10.1080/10903120290938148.

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35

Mei, Yanbo, Jaap E. Borger, Dong-Jun Wu, and Hansjörg Grützmacher. "Salen supported Al–O–CP and Ga–PCO complexes." Dalton Transactions 48, no. 13 (2019): 4370–74. http://dx.doi.org/10.1039/c9dt00485h.

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36

Mehta, Yashwant, Vikram V. Dabhade, and Gajanan P. Chaudhari. "Metallography of Fe–P–C and Fe–P–C–Si–N Alloys." Metallography, Microstructure, and Analysis 4, no. 6 (November 13, 2015): 488–96. http://dx.doi.org/10.1007/s13632-015-0233-1.

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37

Yang, Chengmin. "Projections P on C = C[ -1, 1 ] which Interpolate at dim(P(C)) or More Points." Proceedings of the American Mathematical Society 115, no. 3 (July 1992): 669. http://dx.doi.org/10.2307/2159213.

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38

Li, Lili, Wenbin Huang, Lijin Chen, Jiaxing Dong, Xuebing Ma, and Yungui Peng. "Silver-Catalyzed Oxidative C(sp3 )−P Bond Formation through C−C and P−H Bond Cleavage." Angewandte Chemie International Edition 56, no. 35 (July 21, 2017): 10539–44. http://dx.doi.org/10.1002/anie.201704910.

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39

Li, Lili, Wenbin Huang, Lijin Chen, Jiaxing Dong, Xuebing Ma, and Yungui Peng. "Silver-Catalyzed Oxidative C(sp3 )−P Bond Formation through C−C and P−H Bond Cleavage." Angewandte Chemie 129, no. 35 (July 21, 2017): 10675–80. http://dx.doi.org/10.1002/ange.201704910.

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40

Watters, David R., and Oscar Fonseca Zamora. "From the Archives and Collections: C. V. Hartman’s letter of May 27, 1907 to C. C. Mellor." Annals of the Carnegie Museum 72, no. 2 (May 27, 2003): 109–36. http://dx.doi.org/10.5962/p.316086.

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41

Ziółkowska, Aleksandra, Natalia Szynkiewicz, Jerzy Pikies, and Łukasz Ponikiewski. "Synthesis of compounds with C–P–P and CP–P bond systems based on the phospha-Wittig reaction." Dalton Transactions 49, no. 39 (2020): 13635–46. http://dx.doi.org/10.1039/d0dt02728f.

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This work presents the reactivity of [^MeNacNacTi(Cl){η²-P(SiMe₃)–PtBu₂}] towards ketones such as benzophenone, 9-fluorenone, acetophenone, cyclopentanone, cyclohexanone and cycloheptanone based on the phospha-Wittig reaction.

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42

M�ller, H. "Deuteron fragmentationd+p?p+p+n at 9 GeV/c." Zeitschrift f�r Physik A Atomic Nuclei 332, no. 3 (September 1989): 361–62. http://dx.doi.org/10.1007/bf01295467.

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43

Oglesbee, Michael. "Cellular Responses to Stress. C. P. Downes , C. R. Wolf , D. P. Lane." Quarterly Review of Biology 75, no. 4 (December 2000): 454. http://dx.doi.org/10.1086/393653.

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44

Ishikawa, H., R. W. Field, S. C. Farantos, M. Joyeux, J. Koput, C. Beck, and R. Schinke. "ChemInform Abstract: H-CP-CP-H Isomerization: Caught in the Act." ChemInform 31, no. 17 (June 8, 2010): no. http://dx.doi.org/10.1002/chin.200017287.

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Brice, Jane H., Terence Valenzuela, Joseph P. Ornato, Robert A. Swor, Jerry Overton, Ronald G. Pirrallo, James Dunford, and Robert M. Domeier. "O PTIMAL P REHOSPITAL C ARDIOVASCULAR C ARE." Prehospital Emergency Care 5, no. 1 (January 2001): 65–72. http://dx.doi.org/10.1080/10903120190940362.

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46

Shevchenko, I., A. Tarasevich, K. Turcheniuk, R. Mikolenko, V. Andrushko, A. Rozhenko, R. Schmutzler, H. Grützmacher, and G. V. Röschenthaler. "Compounds Featuring the Structural Fragment P-C-P." Phosphorus, Sulfur, and Silicon and the Related Elements 186, no. 4 (March 31, 2011): 621–25. http://dx.doi.org/10.1080/10426507.2010.520285.

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Chuah, Meng-Kiat. "Kaehler structures on $K_{\mathbf C}/(P,P)$." Transactions of the American Mathematical Society 349, no. 8 (1997): 3373–90. http://dx.doi.org/10.1090/s0002-9947-97-01840-0.

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48

Gonce, Frédéric, Anne-Marie Caminade, and Jean Pierre Majoral. "Polyazatetraphosphorus PC and PNN macrocycles." Tetrahedron Letters 32, no. 2 (January 1991): 203–6. http://dx.doi.org/10.1016/0040-4039(91)80855-z.

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49

Althoff, Ulrike, Joseph Grobe, Duc Le Van, and Ernst-Ulrich Würthwein. "Reaktive E=C(p—p)π-Systenie, XIX. F3CP=C(H)F und F3CP = C(D)F als Dienophile / Reactive E=C(p—p)π-Systems, XIX. F3CP=C(H)F and F3CP=C(D)F as Dienophiles." Zeitschrift für Naturforschung B 44, no. 2 (February 1, 1989): 175–80. http://dx.doi.org/10.1515/znb-1989-0214.

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Abstract A study of the dienophilic properties of F3CP = C(H)F (1) and F3CP = C (D)F (4) has been performed by using Me3SnP(CF3)CF2H (2) and Me3SnP(CF3)CF2D (3), respectively, as precur sors for the in situ generation of 1 and 4 in the presence of 2 ,3-dim ethyl-1,3-butadiene, 1,3-cyclohexadiene or 9,10-dimethylanthracene. Slow elimination of Me3SnF occurs at 55 °C yielding the cycloadducts of 1 and 4, respectively, within 5 or 7 days. Polymerization is observed as the main stabilizing reaction of 1 and 4, thus reducing the yields o f the [2+4]-cycloadducts 5 to 9 to about 20%. They are formed as mixtures o f diastereomers in the ratio a:b ≈ 90:10. In the preferred isomer a according to NMR data CF3 and F have anti positions. Since NMDO calculations yield energy barriers of about 40 kcal/mol for E/Z isomerization, and literature values for inversion barriers of trialkyl phosphanes are of the same magnitude, the formation of isomers most likely has to be explained by a nonconcerted mechanism of the [2 + 4]-cycloaddition.

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50

Crossley, M. D. "Monomial Bases for $H^*(\mathbf {C}P^\infty \times \mathbf {C}P^\infty )$ over $\mathcal A(p)$." Transactions of the American Mathematical Society 351, no. 1 (1999): 171–92. http://dx.doi.org/10.1090/s0002-9947-99-02060-7.

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