We report the intercalation of ferrocene into Cd2P2S6(CoCp2)0.8. The Cd2P2S6 was first intercalated with cobaltocene, and then this intercalated material was reacted with ferrocene. Mass spectroscopy provides direct evidence for the presence of ferrocene in the Cd2P2S6 hostlattice. ESR measurements suggest that after the insertion of ferrocene into Cd2P2S6(CoCp2)0.8, the concentration of neutral cobaltocene
我们报告插入Cd 2 P 2 S 6(CoCp 2)0.8的二茂铁。首先将Cd 2 P 2 S 6与钴茂金属插层,然后使该插层材料与二茂铁反应。质谱为Cd 2 P 2 S 6主体晶格中二茂铁的存在提供了直接的证据。ESR测量结果表明,将二茂铁插入Cd 2 P 2 S 6(CoCp 2)0.8后,Cd中的中性钴茂浓度2 P 2 S 6明显减少。X射线衍射和化学分析提供了其他特征。
Dielectric relaxation of intercalated cadmium thiophosphate (Cd2P2S6)
作者:J. A. Read、C. Chick、A. H. Francis
DOI:10.1021/j100183a087
日期:1992.2
The dielectric loss of single crystals of pyridine-intercalated Cd2P2S6 was examined over the temperature range -130 to +300-degrees-C. The intercalation of amines involves a complex redox-disproportionation reaction leading to ionic and dipolar products that produce a large dielectric loss. Measurement of the dielectric loss provides information about the chemical and dynamical behavior of the intercalated species. Because the dielectric loss is sensitive to a different component of molecular motion than H-2-NMR spectroscopy, the information obtained is complementary to that extracted from magnetic resonance studies. Dielectric loss processes were observed at temperatures above almost-equal-to 25-degrees-C. The absence of measurable dielectric loss associated with the dipolar reorientation below 25-degrees-C revealed previously by ESR and NMR spectroscopies indicates that the low-temperature reorientation does not alter the projection of the intercalate dipole on the crystallographic c* axis. Above 25-degrees-C, the fully rotationally averaged pyridine dipoles do not contribute to the dielectric loss. The rapid increase in the loss is due to pyridinium ions weakly bound to lattice cation vacancies. The activation energy for the high-temperature dielectric loss process was found to depend upon the extent of intercalation. The activation energies obtained are compared with the enthalpy of intercalation and deintercalation obtained from recent calorimetric measurements, and a model for the contribution of the dipolar reorientation to the dielectric loss was developed.