CH Bond Activation

Albrecht, Martin

doi:10.1002/9783527623211.ch2

Cited by 16 publications

(13 citation statements)

References 33 publications

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“…While our fits rely on individual measurements of the average gluon and quark jet multiplicities, the experimental literature also reports determinations of their ratio; see Refs. [11,44,46,48,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93], which essentially cover all the available measurements. In order to find out how well our fits describe the latter and thus to test the global consistency of the individual measurements, we compare in Fig.…”

Section: Discussionmentioning

confidence: 99%

Average gluon and quark jet multiplicities at higher orders

Bolzoni¹,

Kniehl²,

Kotikov³

2013

Nuclear Physics B

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We develop a new formalism for computing and including both the perturbative and nonperturbative QCD contributions to the scale evolution of average gluon and quark jet multiplicities. The new method is motivated by recent progress in timelike small-x resummation obtained in the MS-bar factorization scheme. We obtain next-to-next-to-leading-logarithmic (NNLL) resummed expressions, which represent generalizations of previous analytic results. Our expressions depend on two nonperturbative parameters with clear and simple physical interpretations. A global fit of these two quantities to all available experimental data sets that are compatible with regard to the jet algorithms demonstrates by its goodness how our results solve a longstandig problem of QCD. We show that the statistical and theoretical uncertainties both do not exceed 5% for scales above 10 GeV. We finally propose to use the jet multiplicity data as a new way to extract the strong-coupling constant. Including all the available theoretical input within our approach, we obtain alpha_s^(5)(M_Z)=0.1199 +- 0.0026 in the MS-bar scheme in an approximation equivalent to next-to-next-to-leading order enhanced by the resummations of ln(x) terms through the NNLL level and of ln(Q^2) terms by the renormalization group, in excellent agreement with the present world average.Comment: 33 pages, 11 figures; two more experimental data sets included; accepted for publication in Nucl. Phys.

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Section: Discussionmentioning

confidence: 99%

Average gluon and quark jet multiplicities at higher orders

Bolzoni¹,

Kniehl²,

Kotikov³

2013

Nuclear Physics B

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“…Because of the large mass of the b quark B meson decays give rise to a large number of secondary decay products. For instance, CLEO finds that the charged and photon multiplicities at the Υ(4S) are: n charged = 10.99 ± 0.06 ± 0.29 and n γ = 10.00 ± 0.53 ± 0.50, respectively [72], [73]. The high multiplicity of final state particles leads to a large number of possible exclusive final states.…”

Section: A Motivationmentioning

confidence: 99%

Nonleptonic Decays and Lifetimes of Charm and Beauty Particles

Browder

Honscheid

Pedrini

1996

Annu. Rev. Nucl. Part. Sci.

110

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“…This process is followed by a C aryl -C aryl reductive elimination and a final C aryl -H bond activation leading to a five-membered cyclometallated platinum(II) compound with elimination of pentafluorobenzene as shown in Scheme 10. In this case, 19 F NMR monitoring of the process allows the detection of all proposed intermediates.…”

Section: Methodsmentioning

confidence: 99%

“…For this reason, the development of new methods for the preparation of cycloplatinated compounds containing N-donor ligands is a pursued goal. In contrast to cyclopalladation reactions for which Pd(OAc) 2 is a very useful precursor leading to formation of a wide variety of palladacycles [18,19], an analogous "universal" starting material is unknown for cycloplatination reactions. Recent reports on cycloplatination reactions proved that cis-[PtCl 2 (dmso) 2 ] is a reasonable metallating agent leading to higher yields and cleaner reactions than the more classical OPEN ACCESS K 2 [PtCl 4 ] starting material [20][21][22][23][24][25][26][27][28][29][30].…”

Section: Introductionmentioning

confidence: 99%

Diarylplatinum(II) Compounds as Versatile Metallating Agents in the Synthesis of Cyclometallated Platinum Compounds with N-Donor Ligands

Crespo

2014

Inorganics

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This review deals with the reactions of diarylplatinum(II) complexes with N-donor ligands to produce a variety of cycloplatinated compounds including endo-five-, endo-seven-, endo-six-or exo-five-membered platinacycles. The observed reactions result from a series of oxidative addition/reductive elimination processes taking place at platinum(II)/platinum(IV) species and involving C-X (X = H, Cl, Br) bond activation, arene elimination, and, in some cases, C aryl -C aryl bond formation.

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CH Bond Activation

Cited by 16 publications

References 33 publications

Average gluon and quark jet multiplicities at higher orders

Average gluon and quark jet multiplicities at higher orders

Nonleptonic Decays and Lifetimes of Charm and Beauty Particles

Diarylplatinum(II) Compounds as Versatile Metallating Agents in the Synthesis of Cyclometallated Platinum Compounds with N-Donor Ligands

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