Oxidation process of Co(C 6 H 11 O) 2 PS 2 2 and substitute-reduction reaction of Co C 6 H 11 O) 2 PS 2 3 with pyridine have been studied by spectrophotome tric methods,respectively.The equ ilibrium constant was found...Oxidation process of Co(C 6 H 11 O) 2 PS 2 2 and substitute-reduction reaction of Co C 6 H 11 O) 2 PS 2 3 with pyridine have been studied by spectrophotome tric methods,respectively.The equ ilibrium constant was found to be K=0.63±0.02(mol·dm -3 ) -3 .The crystal structure of Co 6 H 11 O) 2 PS 2 2·2Py has been determined by X-ray diff-raction method.The crystal belongs to triclinic system,space groupP1,with cell parameters:a=6.944(2)?,b=9.277(3)?,c=15.981(6)?,α=91.79(3)°,β=99.55(3)°,γ=94.44(3)°,V=1011.2(6)? 3 ,Z =2,M r =803.94,D c =1.320Mg ·m -3 ,F(000)=425,μ=0.747mm -1 ,final R=0.0700and w R=0.1988for 3626re-flections with I≥2σ(I).The cobalt atom in the title complex has a octahedral geometry with four Co-S bonds and two Co-N bonds.The central atom P is t etrahedrally surrounded by two sulp hur atoms and two oxygen atoms in the dicyclohexyldithiophosphate liga nd.The six carbon atoms of cyclohexyl take the chair conformation.展开更多
The dynamic rheological behaviors are measured by small amplitude oscillatory shear on a rotational rheometer for a polystyrene (PS)/nylon 6 (PA6) blend compatibilized by a polystyrene grafted maleic anhydride (PS-g-M...The dynamic rheological behaviors are measured by small amplitude oscillatory shear on a rotational rheometer for a polystyrene (PS)/nylon 6 (PA6) blend compatibilized by a polystyrene grafted maleic anhydride (PS-g-MAH). The storage moduli versus angular frequency (G’-ω) data of the blends are fitted by Palierne model. The Palierne model fits the data basically well for the PA6-rich blends and the 70/6/30 (PS/PS-g-MAH/PA6) blend. The fitting results show that the PS-g-MAH has a fine compatibilizing effect on the PS/PA6 blends.展开更多
光合水裂解反应的电化学模型要求:PSⅡ的放氧反应和PSⅠ的NADPH还原反应必须同时发生.因此静态时相互分开的PSⅡ、Cytb6 f和PSⅠ,在光合作用中必然会相互紧密结合在一起,形成超结构的光合PSⅡ Cytb6 f PSⅠ聚集体,从而导致类囊体结构的...光合水裂解反应的电化学模型要求:PSⅡ的放氧反应和PSⅠ的NADPH还原反应必须同时发生.因此静态时相互分开的PSⅡ、Cytb6 f和PSⅠ,在光合作用中必然会相互紧密结合在一起,形成超结构的光合PSⅡ Cytb6 f PSⅠ聚集体,从而导致类囊体结构的变形.展开更多
文摘Oxidation process of Co(C 6 H 11 O) 2 PS 2 2 and substitute-reduction reaction of Co C 6 H 11 O) 2 PS 2 3 with pyridine have been studied by spectrophotome tric methods,respectively.The equ ilibrium constant was found to be K=0.63±0.02(mol·dm -3 ) -3 .The crystal structure of Co 6 H 11 O) 2 PS 2 2·2Py has been determined by X-ray diff-raction method.The crystal belongs to triclinic system,space groupP1,with cell parameters:a=6.944(2)?,b=9.277(3)?,c=15.981(6)?,α=91.79(3)°,β=99.55(3)°,γ=94.44(3)°,V=1011.2(6)? 3 ,Z =2,M r =803.94,D c =1.320Mg ·m -3 ,F(000)=425,μ=0.747mm -1 ,final R=0.0700and w R=0.1988for 3626re-flections with I≥2σ(I).The cobalt atom in the title complex has a octahedral geometry with four Co-S bonds and two Co-N bonds.The central atom P is t etrahedrally surrounded by two sulp hur atoms and two oxygen atoms in the dicyclohexyldithiophosphate liga nd.The six carbon atoms of cyclohexyl take the chair conformation.
文摘The dynamic rheological behaviors are measured by small amplitude oscillatory shear on a rotational rheometer for a polystyrene (PS)/nylon 6 (PA6) blend compatibilized by a polystyrene grafted maleic anhydride (PS-g-MAH). The storage moduli versus angular frequency (G’-ω) data of the blends are fitted by Palierne model. The Palierne model fits the data basically well for the PA6-rich blends and the 70/6/30 (PS/PS-g-MAH/PA6) blend. The fitting results show that the PS-g-MAH has a fine compatibilizing effect on the PS/PA6 blends.