M-HexadeCANE

Boiron A-M, Lounis B and Orrit M 1996 Single molecules of dibenzanthanthrene in n-hexadecane J. Phys. Chem 105 3969-74... 

Fleury L, Tamarat P, Kozankiewicz B, Orrit M, Lapouyade R and Bernard J 1996 Single-molecule spectra of an impurity found in n-hexadecane and polyethylene Mol. Cryst. Liq. Cryst. 283 81-7... 

An excellent synthesis of myristic acid is thus achieved from readily accessible starting materials. An alternative synthesis of myristic acid utilises hexanoic acid (M-caproic acid n-hexoic acid) (X) (2 mols) and methyl hydrogen sebacate (XI) (1 mol) the products, after hydrolysis, are Ji-decane (XII), myristic acid (XIII) and hexadecane-1 16-dlcarboxylic acid (XIV) ... 

Reflux 6 8 g. of the dimethyl ester with a solution of 3 2 g. of sodium hydroxide in 150 ml. of 80 per cent, methanol for 2 hours on a water bath. When cold, filter oflF the solid and wash it with a little cold methanol. Dissolve the solid in 350 ml. of warm water, add concentrated hydrochloric acid to the solution at 60° until acidic to litmus, filter off the precipitated acid, wash with a little water and dry at 100°. The resulting hexadecane-1 16 dicarboxylic acid, m.p. 122°, weighs 5-3 g. Recrystallisation from absolute methanol raises the m.p. to 124 -5°. 

C. and D. Monoolein/hexadecane membranes, 100 mV applied potential 1 M RbCl and 23 °C. Note that, during the time period of an average Gramicidin A channel (above), the N-acetyl desformyl Gramicidin A channel turns on and off many times and that the conductance step is smaller. The N-acetyl methyl replacing the formyl proton also crowds and destabilizes the head to head junction and results in less favorable lateral coordination of the cation at the junction. Reproduced with permission from Ref.111... 

C. Histogram of single channel conductances of Gramicidin A in glyceryl monoolein/hexadecane membranes for 1 M KC1, 103 mV applied potential and 23 °C. Reproduced with permission from Ref. 13>... 

Michaelsen M, R Hulsch, T Hdpner, L Berthe-Corti (1992) Hexadecane mineralization in oxygen-controlled sediment-seawater cultivations with autochthonous microorganisms. Appl Environ Microbiol 58 3072-3077. 

Duffy, E. M., Jorgensen, W. L. Prediction of properties from simulations free energies of solvation in hexadecane, octanol, and water. J. Am. Chem. Soc. 2000, 122, 2878-2888. 

Hexadecane-1 16-dicarboxylic acid. Dissolve 31 5 g. of methyl hydrogen sebacate in 140 ml. of absolute methanol to which 0-4 g. of sodium has been added. Electrolyse at 2-0 amps, until the pH of the electrolyte is 7-8-8-0 (3-5-4 hours). Work up as described for Sebacic acid. Upon distillation, an unsaturated ester passes over at 111-113°/ 20 mm. (4-6 g.), followed by dimethyl hexadecane-1 16-dicarboxylateat 212-219°/4 mm. (mainly at 214-215°/4 mm.), m.p. 56° (16-5 g.). 

Figure 3. Hexadecane/water/glass wetting cycle exhibiting water-wetting behavior. (Reproduced with permission from Teeters, D. Wilson, J. F. Andersen, M. A. Thomas, D. C. J. Colloid Interface Sci., 1988, 126 in press. Copyright 1988 Academic Press.)...

On all the catalysts, n-hexadecane transformed into isomerization products (monobranched isomers M and multibranched isomers B) and into cracking products C. Monobranched isomers M were mainly methylpentadecanes ethyl-branched tetradecanes were formed in very small amounts, propyl-branched tridecanes were not observed. Multibranched isomers were bi- and tri-branched products, not formally identified. 

No other products were detected in the gas phase. The amount of H2 produced from 85 pmol of m-C16H34 was 4.14 mmol, which is close to the stoichiometric value. One can note that reaction 2.72 stoichiometry resembles that of steam reforming of hexadecane. The authors proposed the following mechanism, which involves the initial generation of active species holes (p+) in the valence band and electrons (e ) in the conduction band of... 

Using small-angle neutron scattering (SANS), it was shown that alkoxy-substituted triphenylenes associate in deuterated hexadecane.70 At low concentrations small aggregates are formed and at higher concentrations (10 3 M)... 

Leermakers, F. A. M. and Cohen Stuart, M. A. (1996). Self-consistent-field lattice gas model for the surface ordering transition of n-hexadecane, Phys. Rev. Lett., 76, 82-85. 

Rosenberg, M. and Rosenberg, E. (1981). Role of adherence in growth of Acine-tobacter cacoaceticus RAG-1 on hexadecane, J. Bacteriol, 148, 51-57. 

Bouchez-Nai tali, M., Blanchet, D., Bardin, V. and Vandecasteele, J.-P. (2001). Evidence for interfacial uptake in hexadecane degradation by Rhodococcus equi the importance of cell flocculation, Microbiology, 147, 2537-2543. 

Blander, M., Hengstenberg, D., and Katz, J. L. (1971). Bubble nucleation in n-pentane, n-hexane, n-pentane + hexadecane mixtures, and water. J. Phys. Chem. 75, 3613. 

Figure 5.8 CV of a hexadecane thiol SAM on Au/mica recorded in 0.5 m KOH at a scan rate of 20 mV/s. KOH is used to shift the hydrogen-evolution reaction negativeofthethiol desorption peak.

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