多烯烃

Fe、Ni、Co-吡啶配合物对环多烯烃的均相选择催化氢化

Homogeneous Catalytic Selective Hydrogenation of Cyclic Polyenes by ( Fe , Ni , Co ) - Pyridine Complexes

研究了环多烯烃的烯键在M（Fe，Ni，Co）-吡啶配合物存在下的均相选择催化氢化。

The homogenous catalytic selective hydrogenation of cyclic polyenes by M ( Fe , Ni , Co ) & pyridine complexes was studied .

根据Lewis酸投入量的不同，该中间体可选择性生成烯基醇衍生物或者经重排脱水得到多烯烃衍生物。

Allyl alcohol derivative or polyene could be produced in high selectivity according to the difference input amout of Lewis acid .

提出若干支化多烯烃同系列的∈HOMO（最高占据分子轨道的能量）计算公式。

Several computed formulas for the ∈ HOMO of the branching polyene homologous series are given .

讨论了配合物中心元素和环多烯烃构造对催化氢化反应的影响，同时提出了反应过程的机理。

Influences of the central elements of the complexes on the reaction were discussed and the catalytic reaction mechanism was proposed .

聚氯乙烯树脂的热分解主要表现为外观颜色由白色热分解成黄色、红褐色和黑色，这种颜色的变化源于聚氯乙烯树脂热分解生成的多烯烃结构及多烯烃结构与各类金属离子形成的络合物。

The main appearance of PVC degradation is coloration from white to yellow , brown and black , caused by polyene structure of PVC and its complex with metallic ions .

我们以INDO/SDCI方法为基础，利用完全态求和公式，计算了多烯烃和联苯类分子的三阶非线性光学系数γ（0,0,0,0）和γ（-ω，ω，-ω，ω）。

On the base of INDO / SDCI method , using sum-over-states formula , the nonlinear third-order optical susceptibilities γ( 0 , 0 , 0 , 0 ) and γ( - ω, ω, - ω, ω) of polyenes and poly-p-phenyls have been calculated .

羰基铑簇合物衍生的多相烯烃氢甲酰化催化剂的性能及红外表征

Properties and IR Characterization of Rhodium Carbonyl Cluster-Derived Heterogeneous Olefin Hydroformylation Catalysts

许多具有生物活性的天然产物中都含有多取代烯烃的结构单元，因此，多取代烯烃的合成一直是有机合成化学家们感兴趣的课题之一。

The stereoselective synthesis of polysubstituted alkenes remains one of the most interesting subjects in organic synthesis due to the fact that many biologically active compounds containing the structural unit of polysubstituted alkenes .

该三组分一锅反应具有原料易得，操作简便，反应条件温和等特点，为多取代烯烃、特别是四取代烯烃的合成提供了一种新的合成方法。

This one-pot three-component reaction has the advantages of easily available materials , simple manipulation , mild reaction conditions . And it provides a new method for the stereoselective synthesis of polysubstituted alkenes , especially of tetrasubstituted alkenes .

拓扑结构可变的动态多细节层次模型烯烃类聚合物的改性

Dynamic level of detail framework with topological structure modification