Equilibria Involving Cyanogen Iodide; The Free Energy of Formation of Cyanogen.

Lewis, Gilbert N.; Keyes, D. B.

doi:10.1021/ja02236a002

Cited by 16 publications

(8 citation statements)

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“…Solid ICN, when it is heated in a closed tube, is known to decompose to NCCN and iodine for some time, 17 and it has sufficient vapor pressure to be easily driven through a furnace in the gas phase under very well-controlled conditions. We carried out the thermolysis in a quartz tube (12 mm i.d.)…”

Section: Methodsmentioning

confidence: 99%

Penning Ionization of NCCN by Experiment and Theory: A Two-Dimensional Penning Ionization Electron Spectroscopic and Quantum Chemical Study

et al. 1999

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Dicyanogen, NCCN, is generated for spectroscopic investigations on-line from rubeanic acid, mercury(II) cyanide, and cyanogen iodide and studied in the gas phase by two-dimensional Penning and He I photoelectron spectroscopies, as well as ab initio calculations. From spectroscopic data, the interaction between NCCN and He*(23S) atoms is deduced. The interaction potential for the similarly interacting NCCN−Li(22S) system is obtained from ab initio calculations at the CCSD/6-311++G** level. Experimental and calculated results show that the interaction potential is anisotropic around NCCN, is the most attractive in the nitrogen lone electron pair region, and gradually changes into repulsive as the N−C−He*(or Li) angle opens up to 90°. An unusual collision energy dependences of the partial ionization cross sections are observed, which is interpreted by the unusual interaction potential. For assisting experimental data and studying collision dynamics, classical trajectory calculations are performed for the Penning ionization of the NCCN−He*(23S) system. The spectroscopic investigations predict the existence of thermodynamically stable MLi radicals, and the structure and stability of NCCNLi isomers are calculated at the QCISD/6-311++G** level.

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Section: Methodsmentioning

confidence: 99%

Penning Ionization of NCCN by Experiment and Theory: A Two-Dimensional Penning Ionization Electron Spectroscopic and Quantum Chemical Study

et al. 1999

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“…When the results wyere expressed as Ostwald coefficients, the law held. Lewis and Keyes (179) found that the pressure of hydrogen cyanide over its aqueous solution was proportional to the molarity. Bancroft and Belden (10), working with hydrogen sulfide in aniline at 22°C.…”

Section: B Variation Of Solubility With Pressurementioning

confidence: 99%

The Solubility of Gases in Liquids.

Markham¹,

Kobe²

1941

Chem. Rev.

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“…(Lewis and Keyes, 1918). The amount of hydrogen cyanide absorbed by the muscle was uncertain, the maximum value would be roughly 10" moles per 1000 gm.…”

Section: 74417mentioning

confidence: 99%

“…The partial pressure of hydrogen cyanide in the vessel was approximately 1 mm. (Lewis and Keyes, 1918). The amount of hydrogen cyanide absorbed by the muscle was uncertain, the maximum value would be roughly 10" moles per 1000 gm.…”

Section: 74417mentioning

confidence: 99%

The vapour pressure isotherm of muscle

1934

Proc. R. Soc. Lond. B.

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It has been suggested that some of the water in muscle and other biological materials is in the bound state. The definition of bound water was varied with the method used for its determination, but the term usually denotes that the behaviour of the system cannot be explained by considering the total water present as the solvent. The methods used have been discussed by Hill (1930) and Briggs (1931, b ); in some cases a large proportion of the water present was believed to be in the bound state. In the present work, the water content of a single sartorius muscle (in rigor) of the frog has been investigated when in equilibrium with various pressures of water vapour, and an attempt made to calculate the amount of bound water present. It is hoped later to apply the method, which involves the minimum of interference with the structure of the muscle, to the more complicated system of living muscle.

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Equilibria Involving Cyanogen Iodide; The Free Energy of Formation of Cyanogen.

Cited by 16 publications

References 0 publications

Penning Ionization of NCCN by Experiment and Theory: A Two-Dimensional Penning Ionization Electron Spectroscopic and Quantum Chemical Study

Penning Ionization of NCCN by Experiment and Theory: A Two-Dimensional Penning Ionization Electron Spectroscopic and Quantum Chemical Study

The Solubility of Gases in Liquids.

The vapour pressure isotherm of muscle

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