The first-order rate constant, k1, is unaffected by the nature of the nucleophile, whereas the second-order rate constant, k2, increased with increasing nucleophilicity. This was ascribed to the simultaneous occurrence of SN1 and SN2 reactions without an intermediate mechanism. These results are ...
N2-SN1 and SN3-SN2 spectrum of reaction mechanisms]]>acid chlorideskineticsmechanistic spectrumsolvolysistosylatesp>A simple linear regression ( Q equation) is devised to position solvolyses within the established SN2-SN1 spectrum of solvolysis mechanisms. Using...
Mssbauer spectra of samples of Ce(Sn 1 xIn x) 3, Ce 2Sn 5 and Ce 3Sn 7 were measured at room temperature, 4.2 and 1.5 K. The quadrupole splitting was found to be the same for these samples, while the width to increase at low temperature due to the antiferromagnetic order and ...
2023 The Author(s)Structural, magnetic and magnetocaloric properties of Mn3Sn1-xZnxC antiperovskite carbides have been studied. With increasing Zn content the first-order magnetic transition (FOMT) is weakened. The Curie temperature (TC) reduces first from 273 to 197 K and when x > 0.3, TC ...
The weak RTFM was due to only a fraction of Fe ions contributing to magnetic-order coupling mediated by oxygen vacancy.J.F.LiuandM.F.LuandP.ChaiandL.SDOSJournal of Magnetism & Magnetic MaterialsLiu, J.F.; Lua, M.F.; Chaia, P.; Fua, L.; Wang, Z.L.; Cao, X.Q.; Meng, J....
The critical parameters (尾, 纬 and 未) of the samples were determined from the static magnetic data at the second-order ferromagnetic-paramagnetic transition region using the field dependence of magnetic entropy change.doi:10.1016/j.intermet.2016.11.001Raji, G.R....