In the presence of O2, the decomposition of 2,2,3,3-tetramethylbutane (TMB) gives 98 % of isobutene in the temperature range 420–540°C through reactions (4) and (5). (CH3)3 CC(CH3)3= 2(CH3)3C (4). (CH3)3C + O2=(CH3)2C[double ...

For dilute gases and non-electrolyte solutions in the McMillan–Mayer standard state, an activity expansion due to Mayer has great advantages over the normal concentration expansion (virial equation) for strongly associating ...

It is proposed that the magnitudes of n.m.r. quadrupole splittings of ions in lyotropic liquid crystals are related to the fractional concentration of the ions in the bound water at the lipid/water interface. Ions in the ...

The luminescence lifetimes of [Ru(bipy)3]2+ and [Ru(phen)3]2+ have been determined in a variety of media, over as wide a temperature range as feasible in each case (with a lower limit of 77 K). These results, together with ...

The partial molar volumes of a number of ω-(N,N,N-trimethyl-amino)-α-carboxylic acids in water at 25°C have been measured, and related to their van der Waals volumes. The effects of progressive methylation of the nitrogen ...

Kinetic isotope effects have been determined for the proton-transfer and deuteron-transfer reactions of 4-nitrophenylnitromethane with pentamethylguanidine in toluene solution. The observed value of the isotopic rate ratio ...

The kinetics of the deuteron transfer reactions of [2H2]-4-nitrophenylnitromethane with N,N-diethyl-n-butylamidine in toluene has been studied. The reaction is, in contrast to the corresponding proton transfer, kinetically ...

The variations in dielectric constant of a dilute suspension of rigid spheroids in a dielectric fluid in a combined uniform shear and electric field have been examined. Electrical polarization of the particles perturbs the ...

Naphthalenediimide (NDI)-based donor–acceptor co-polymers with tunable electronic, optical, mechanical, and transport properties have shown immense potential as n-type conducting polymers in organic (opto)electronics. ...

The four new hydrazone Schiff bases have been synthesized in absolute ethanol at the reflux of 78 °C. These hydrazones are named as: (E)-1-(2,4-dinitrophenyl)-2-(2-ethoxy benzylidene) hydrazine(2-EDNPH) (L1), (E)-1-(2,4- ...