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pro vyhledávání: '"Arthur Donald Walsh"'
Autor:
Arthur Donald Walsh
Publikováno v:
Proceedings of the Royal Society of Medicine. 185
The absorption spectrum of acetaldehyde has been photographed in the vacuum ultra violet. Three Rydberg series were found, all leading to the same limit. For the first of these no less than sixteen members were observed, enabling the ionization po
Publikováno v:
Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences. 174:220-234
Butadiene is important as the simplest example of resonance between two conjugated double bonds. The comparison of its ultra-violet absorption spectrum with that of ethylene might be expected to give some indication of the way the π electrons of the
Publikováno v:
Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences. 185:182-191
The absorption spectra of hexatriene and divinyl acetylene have been investigated in the region 2700-1200 A. In both molecules the longest wave-length regions of absorption are the strongest and these are interpreted as N → V 1 intravalence shell t
Publikováno v:
Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences. 215:175-186
The effect of lead tetraethyl on various pressure-temperature regions of ether combustion is described. The inhibiting effect was found to persist after prolonged evacuation of the apparatus. Various experiments suggested that this was due to the dep
Publikováno v:
Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences. 201:600-609
The absorption spectra in the vacuum ultra-violet of the hydrides and deuterides of sulphur, selenium and tellurium, and methyl mercaptan and dimethyl sulphide are described. Well-developed Rydberg series leading to the following ionization potential
Autor:
Arthur Donald Walsh
Publikováno v:
Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences. 207:22-30
The following empirical relations are found. The force constant (k$\_{e}$) of a diatomic hydride is roughly proportional to the square of the first ionization potential of the element forming the hydride. For a fixed element A and for B = F, Cl, Br o
Publikováno v:
Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences. 266:257-271
The 2491 Å electronic transition of nitrogen dioxide has been photographed in absorption under high resolution and a rotational analysis of the (000) ← (000) band carried out. The analysis is consistent with the upper state belonging to the C 2v p
Autor:
Arthur Donald Walsh
Publikováno v:
Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences. 207:13-22
It is proposed th at the electronegativity of an atom or group A should be defined as the stretching force constant of the bond A — H , allowance being made in certain cases for repulsion between bond and lone pair electrons. The reasons for this p
Publikováno v:
Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences. 243:463-524
Previous work has demonstrated that knock in the spark-ignition engine is a phenomenon confined to the last part of the charge to burn, and that it is the chemical reactions in this ‘ end-gas ’ which determine whether or not knock will occur. The
Autor:
R. K. Ritchie, Arthur Donald Walsh
Publikováno v:
Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences. 267:395-407
An analysis of the 1650-1350 Å band system of nitrogen dioxide has been carried out. A pattern of band spacings and intensities is found that is complex but regular. It is shown that this pattern is qualitatively, and to a large extent quantitativel