Hot ethene desorption from Cu(111)

Jones, Robert G.; Turton, S.; Ithnin, R.

doi:10.1016/s0039-6028(96)01561-0

Cited by 7 publications

(12 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1 Hz),138.4 (d,3 J C−P = 6.8 Hz), 137.1 (d, 3 J C−P = 5.5 Hz), 133.6, 133.5, 131.9, 129.9, 129.8 (d, 2 J C−P = 11.6 Hz),129.4,129.3 (2C),129.2 (d,3 J C−P = 9.1 Hz),128.9 (2C),128.8,128.4 (d,2 J C−P = 15.4 Hz),127.6,126.4,121.5 (d,1 J C−P = 180.9 Hz), 109.6 (d, 3 J C−P = 12.2 Hz), 63.3 (d, 2 J C−P = 6.4 Hz), 16.4 (d, 3 J C−P = 6.2 Hz). 31 ClO 3 PSe + ,476.9920;found,benzo [c][1,2]oxaphosphinine . The general procedure GP1 was followed using alkyne 1m′ (68.4 mg, 0.20 mmol) and diselenide 2a (62.4 mg, 0.20 mmol).…”

Section: -(2-ethoxy-2-oxido-5-(phenylselanyl)-34-dihydro-12-oxaphosph...mentioning

confidence: 99%

“…1H),1H),7.38 (ddd,J = 7.5,3.5,1.0 Hz,1H),7.23 (d,J = 1.5 Hz,1H),7.21 (d,J = 1.2 Hz,1H),2H),1H),2H),2H),2H),2H) Hz), 107.0 (d, 3 J C−P = 12.5 Hz), 62.9 (d, 2 J C−P = 6.5 Hz), 36.0 (d, 3 J C−P = 4.8 Hz), 29.4, 22.1, 16.4 (d, 3 J C−P = 6.4 Hz), 13.8. 31 benzo [c][1,2]oxaphosphinine . The general procedure GP1 was followed using alkyne 1p′ (64.0 mg, 0.20 mmol) and diselenide 2a (62.4 mg, 0.20 mmol).…”

Section: -(2-ethoxy-2-oxido-5-(phenylselanyl)-34-dihydro-12-oxaphosph...mentioning

confidence: 99%

“…C−P= 9.1 Hz), 131.5, 131.4 (2C), 131.0(d, 3 J C−F = 8.4 Hz, 2C), 129.9, 129.4 (2C), 127.3, 114.8 (d, 2 J C−F = 21.7 Hz, 2C), 106.8 (d, C−P = 13.1 Hz), 62.3 (d,2 J C−P = 6.6 Hz), 30.0 (d, 2 J C−P = 8.9 Hz), 21.1 (d, 1 J C−P = 129.4 Hz), 16.5(d, 3 J C−P = 5.7 Hz) 31. P { 1 H} NMR (243 MHz, CDCl 3 ): δ 22.1.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Transition-Metal-Free Electrochemical Selenylative Cyclization of Alkynyl Phosphonates

Li,

Zhou,

et al. 2023

J. Org. Chem.

View full text Add to dashboard Cite

Unprecedented regioselective electrochemical tandem selenation/ cyclization of alkynyl phosphonates with diselenide is described here. These obtained selenoether products can be chemo-selectively converted into halogenfunctionalized cyclic enol phosphonates under our electrochemical conditions. These protocols provide straightforward access to valuable cyclic enol phosphonate or phosphaisocoumarins under the electrochemical and transitionmetal-free conditions. The robustness of these transformations was illustrated by their compatibility with various complex natural products and bioactive molecules. The selenoether and halogen functional groups allow the further diversification of the phosphorus heterocycles thus obtained.

show abstract

Section: -(2-ethoxy-2-oxido-5-(phenylselanyl)-34-dihydro-12-oxaphosph...mentioning

confidence: 99%

Section: -(2-ethoxy-2-oxido-5-(phenylselanyl)-34-dihydro-12-oxaphosph...mentioning

confidence: 99%

See 1 more Smart Citation

Transition-Metal-Free Electrochemical Selenylative Cyclization of Alkynyl Phosphonates

Li,

Zhou,

et al. 2023

J. Org. Chem.

View full text Add to dashboard Cite

show abstract

“…The aim was to establish LOS between the sample surface and the ionisation volume, with a single pass through the ionisation region. Using this device, the time of flight of ethene desorbed from a Cu(111) surface under the action of a pulsed electron beam could be determined, allowing its speed distribution to be determined . The device was used to study TPD of ethene from a Cu(111) surface, and in 1999, it was used to measure the reaction of iodine on Al(111) and to determine the sticking probability.…”

Section: Review Of Line‐of‐sight Mass Spectrometrymentioning

confidence: 99%

“…McCoustra et al ., in 2002, described a system based on that by Jones et al . (refer to previous text) for use in laboratory‐based astrophysical experiments .…”

Section: Review Of Line‐of‐sight Mass Spectrometrymentioning

confidence: 99%

Line‐of‐sight mass spectrometry: principles and practice

Hessey

Jones

2015

Surface & Interface Analysis

Self Cite

View full text Add to dashboard Cite

Line-of-sight mass spectrometry (LOSMS) defines a focal area on a sample surface such that only species originating from within that area are detected by a mass spectrometer. Line-of-sight gas trajectories are established between a focal area and the ionisation volume using two apertures with cryo-pumping walls to prevent all other trajectories from reaching the ionisation volume. Because of the geometry, LOSMS is area specific, angle resolving and capable of detecting neutral, radical and charged species with approximately equal sensitivity and can be used to measure the speed distribution of gases. The history of LOSMS is reviewed, and the different aspects are drawn together to give a coherent description of the technique. The general operating principles are used to predict how a gas microscope with a spatial resolution of 25 μm and a gas camera with an angular resolution of 0.014°could be built. Three types of experiment that can be carried out using LOSMS are described: temperature-programmed desorption, sticking probability measurements and general monitoring of the gas phase above a surface where the temporal variation of the gas pressure and sample temperature can be arbitrarily complex. Procedures for accurately locating the line-of-sight focal area are described. The angle-resolving ability of LOSMS is demonstrated, showing that the angular distributions of two gases, acetone and 1,2,3-trifluorobenzene, from a solid surface (silver) and a liquid (1-ethyl-3-methylimidazolium ethyl sulfate [C 2 C 1 Im][EtSO 4 ]) surface are cosine distributions as predicted by Knudsen's cosine law. Figure 6. Illustration of how spurious peaks (I refl ) in a temperature-programmed desorption (TPD) measurement, I expt , due to gas reflecting from the surface under study may be removed using the total pressure measurement, P, to give the true desorption spectrum, I des .

show abstract

Efficient Electrocatalysis for the Preparation of (Hetero)aryl Chlorides and Vinyl Chloride with 1,2‐Dichloroethane

et al. 2019

View full text Add to dashboard Cite

Although the application of 1,2‐dichloroethane (DCE) as a chlorinating reagent in organic synthesis with the concomitant release of vinyl chloride as a useful byproduct is a fantastic idea, it still presents a tremendous challenge and has not yet been achieved because of the harsh dehydrochlorination conditions and the sluggish C−H chlorination process. Here we report a bifunctional electrocatalysis strategy for the catalytic dehydrochlorination of DCE at the cathode simultaneously with anodic oxidative aromatic chlorination using the released HCl as the chloride source for the efficient synthesis of value‐added (hetero)aryl chlorides. The mildness and practicality of the protocol was further demonstrated by the efficient late‐stage chlorination of bioactive molecules.

show abstract

Hot ethene desorption from Cu(111)

Cited by 7 publications

References 15 publications

Transition-Metal-Free Electrochemical Selenylative Cyclization of Alkynyl Phosphonates

Transition-Metal-Free Electrochemical Selenylative Cyclization of Alkynyl Phosphonates

Line‐of‐sight mass spectrometry: principles and practice

Efficient Electrocatalysis for the Preparation of (Hetero)aryl Chlorides and Vinyl Chloride with 1,2‐Dichloroethane

Contact Info

Product

Resources

About