|
|||||
|
|
A thermochemical investigation of guest-host interactions in labile Werner clathrates of the [Ni(4-EtPy)4(NCS)2]·G type (G = Methyl derivatives of benzene) |
|
| Authors: | E Jóna P Šimon V Jorík M Koman |
| Institution: | a Department of Inorganic Chemistry, Slovak Technical University, 812 37, Bratislava, Slovakia b Department of Physical Chemistry, Slovak Technical University, 812 37, Bratislava, Slovakia |
| Abstract: | The stoichiometry of thermal decomposition has been studied for (I): Ni(4-EtPy)4(NCS)2] as a host complex as well as for its clathrates Ni(4-EtPy)4(NCS)2]·G where guest molecule G - toluene, (II): T, (III): o-xylene (o-X) and (IV): p-xylene (p-X). The loss of volatile components proceeds in three steps (−2L, −1L, −1L) for I and in four steps (−G, −2L, −1L, −1L) for II, III and IV. DSC and X-ray powder measurements indicated a phase transition in all compounds under study. However, this process is overlapped by the escape of G in II and III. The differences in enthalpy changes are associated with different guest-host interactions in the particular clathrates. |
| Keywords: | Clathrates DSC DTG TG X-ray diffraction |
| 本文献已被 ScienceDirect 等数据库收录！ | |