醇对络合物TpRu(PPh3)(CH3CN)H催化氢化二氧化碳生成甲酸的影响

研究了络合物TpRu(PPh3)(CH3CN)H 在甲醇溶液中催化氢化CO2生成甲酸的最佳条件,进一步研究了甲醇、乙醇、正丙醇、异丙醇、特丁醇为溶剂时对该络合物催化氢化CO2生成甲酸的影响,提出可能的催化反应机理.     

醇对络合物TpRu（PPh3）（CH3CN）H催化氢化二氧化碳生成甲酸的影响

研究了络合物TpRu(PPh3)(CH3CN)H在甲醇溶液中催化氢化CO2生成甲醇的最佳条件，进一步研究了甲醇、乙醇、正丙醇、异丙醇、特丁醇为溶剂时对该络合物催化氢化CO2生成甲酸的影响，提出可能的催化反应机理。     

钪配合物催化丙烯与月桂烯的共聚合

研究了两种钪配合物(C5Me4SiMe3)Sc(CH2C6H4NMe2-o)2(记作钪配合物1,Me为甲基)和(C5Me4SiMe3)Sc(CH2SiMe3)2(THF)(记作钪配合物2,THF为四氢呋喃)催化丙烯与月桂烯共聚合的性能.结果表明:在室温及丙烯压力为0.6?MPa时,通过调控月桂烯的用量,采用钪配合物1和...     

HEDP与Ge(Ⅳ)固体配合物的研究

在常规条件下合成了1-羟基乙叉-1,1-二膦酸(简称HEDP)与Ge(Ⅳ)的固体配合物.用元素分析和热分析确定了配合物的组成为Ge2(OH)4L@3H2O(Ⅰ),L=CH3C(OH)(PO3)2.用红外光谱和热分析对配合物的结构及热稳定性作了较系统的研究.     

HEDP与Ge(IV)固体配合物的研究

在常规条件下合成了1-羟基乙叉-1,1-二膦酸(简称HEDP)与Ge(IV)的固体配合物。用元素分析和热分析确定了配合物的组成为:Ge2(OH)4L·3H2O(Ⅰ),L=CH3C(OH)(PO3)2。用红外光谱和热分析对配合物的结构及热稳定性作了较系统的研究。     

新型桥联铁硫簇合物的合成与表征

通过2-呋喃甲硫醇/十二羰基三铁/三乙胺体系所形成的中间物[(μ-2-C4H3OCH2S)(μ-CO)Fe2(CO)6]Et3NH在室温下同亲电试剂C lSZSC l原位反应,合成了三个新颖桥联双核铁硫簇合物[(μ-2-C4H3OCH2S)Fe2(CO)6]2(μ-S-Z-S-μ)(Z=CH2CH2CH2CH2,CH2(CH2OCH2)2CH2,CH2(CH2OCH2)3CH2)。这三个新颖配合物均通过1H NMR,IR和元素分析表征。     

含硫聚合物、单体，生产及它们的使用

用作去污增洁剂、水处理剂、颜料分散剂,纤维涂饰剂、或漂白组成物的该聚合物具有CH2C（R^1）R^2OCH2CH（OH）CH2X^1R^3的结构单元（X^1-S,SO2;R^1=H,Me;R^2=CH2,CO：R^3=C1-10有机基团）。该单体H2C：C（R^6）R^7OCH2CH（OH）CH2X^2R^8（X^2=S,SO2：R^6：H,Me;R^7=CH2,CO;R^8=C1-10有机基团）通过使H2C：C（R^11）R垃OG（R^11=H,Me：R^12=CH2,G=缩水甘油基）与SH化合物反应制备而成。228．3g的烯丙基缩水甘油酯用156．3g的巯基乙醇在水中处理,进而用H2O2处理单体,269．1g单体与126．0g80％的丙烯酸在有莫尔盐、NaOH、过硫酸钠和NaHSO3存在的水中聚合,生成的聚合物的Mw为8300,具有良好的粘泥分散性,和防止再污染能力。     

抗氧剂——用作抗氧剂的芳香族羟胺衍生物

世界知识产权组织者专利WO2004，90，070(2004．10．21)34pp Idemitsu Petrochemical Co．Ltd．标题芳香族羟胺衍生物化学分子代表式为(C6HXYR2A)nC6H(OH)(NHR1)R3，其中R^1-3=H或烷基，X=H或OH，Y=H或NHR1，A=0，NH，SO2，CH2或C(CH3)2；n=0或1，当n=0时R1≠H。     

一种新型手性Salen-镍（Ⅱ）配合物的合成与晶体结构

扩散法合成了Salen-镍(Ⅱ)单核配合物Ni(H2DS)·CH30H[H4DS=N,N1-二(3-羧基水杨醛)-(1R,2R)-环己二胺].通过X-ray单晶衍射对配合物进行表征.配合物属单斜晶系,P2(1)/C空间群,晶胞参数:a=7.907(3)A,b=16.884(5)A,c=16.300(6)A,α=90°,β=103.562(6),γ=90°,分子式:C23H24N2NiO7,Mr=499.15,V=21 15.2(12)A3,Z=4,De=1.567 Mg/m3,R1=0.0562,wR2=0.1630[I>2σ(I)].晶体由一个单核配合物Ni(H2DS)和一个没有配位的CH3OH分子组成.     

稀土金属催化剂钇配合物的合成

文章用β-二酮类配体(2-MeO-C6H4N=C(Me)CHC=C(Me)=NH-2-MeO-C6H4)和三烷基钇(Y(CH2Si Me3)3THF2)在低温下反应,合成了一种新型的β-二酮类钇的配合物,从晶体结构图中,我们可以得出金属钇原子与含甲氧基β-二酮配体的O、N、N、O直接相连接,形成四配位的配合物,两个烷氧基以金属钇为中心形成三角锥形的几何构型。配合物(Ⅱ)的氢谱与其晶体结构图完全吻合。     

Insect antifeedant properties of anthranoids from the genusVismia

Vismiones and ferruginins, representatives of a new class of lypophilic anthranoids from the genusVismia were found to inhibit feeding in larvae of species ofSpodoptera, Heliothis, and inLocusta migratoria.     

Methyl 2,4,6-decatrienoates Attract Stink Bugs and Tachinid Parasitoids

Halyomorpha halys (Stål) (Pentatomidae), called the brown marmorated stink bug (BMSB), is a newly invasive species in the eastern USA that is rapidly spreading from the original point of establishment in Allentown, PA. In its native range, the BMSB is reportedly attracted to methyl (E,E,Z)-2,4,6-decatrienoate, the male-produced pheromone of another pentatomid common in eastern Asia, Plautia stali Scott. In North America, Thyanta spp. are the only pentatomids known to produce methyl 2,4,6-decatrienoate [the (E,Z,Z)-isomer] as part of their pheromones. Methyl 2,4,6-decatrienoates were field-tested in Maryland to monitor the spread of the BMSB and to explore the possibility that Thyanta spp. are an alternate host for parasitic tachinid flies that use stink bug pheromones as host-finding kairomones. Here we report the first captures of adult and nymph BMSBs in traps baited with methyl (E,E,Z)-2,4,6-decatrienoate in central Maryland and present data verifying that the tachinid, Euclytia flava (Townsend), exploits methyl (E,Z,Z)-2,4,6-decatrienoate as a kairomone. We also report the unexpected finding that various isomers of methyl 2,4,6-decatrienoate attract Acrosternum hilare (Say), although this bug apparently does not produce methyl decatrienoates. Other stink bugs and tachinids native to North America were also attracted to methyl 2,4,6-decatrienoates. These data indicate there are Heteroptera in North America in addition to Thyanta spp. that probably use methyl 2,4,6-decatrienoates as pheromones. The evidence that some pentatomids exploit the pheromones of other true bugs as kairomones to find food or to congregate as a passive defense against tachinid parasitism is discussed.     

2005～2006年国外塑料工业进展

收集了2005年7月～2006年6月国外塑料工业的相关资料，介绍了2005—2006年国外塑料工业的发展情况。提供了世界塑料产量、消费量及全球各类树脂生产量以及各国塑料制品的进出口情况。作为对比，介绍了中国塑料的生产情况。按通用热塑性树脂（聚乙烯、聚丙烯、聚苯乙烯、聚氯乙烯、ABS树脂）、工程塑料（聚酰胺、聚碳酸酯、聚甲醛、热塑性聚酯、聚苯醚）、通用热固性树脂（酚醛、聚氨酯、不饱和树脂、环氧树脂）、特种工程塑料（聚苯硫醚、液晶聚合物、聚醚醚酮）的品种顺序，对树脂的产量、消费量、供需状况及合成工艺、产品开发、树脂品种的延伸及应用的扩展作了详细的介绍。     

2007～2008年世界塑料工业进展

收集了2007年7月～2008年6月世界塑料工业的相关资料,介绍了2007～2008年国外塑料工业的发展情况,提供了世界塑料产量、消费量及全球各类树脂的需求量及产能情况.按通用热塑性树脂(聚乙烯、聚丙烯、聚苯乙烯、聚氯乙烯、ABS树脂)、工程塑料(尼龙、聚碳酸酯、聚甲醛、热塑性聚酯、聚苯醚)、特种工程塑料(聚苯·硫醚、液晶聚合物、聚醚醚酮)、通用热固性树脂(酚醛、聚氨酯、不饱和聚酯树脂、环氧树脂)不同品种的顺序,对树脂的产量、消费量、供需状况及合成工艺、产品应用开发、树脂品种的延伸及应用的进一步扩展等技术作了详细介绍.     

Inorganic/organic nanocomposite coatings: The next step in coating performance

Inorganic/organic hybrid materials have considerable promise and are beginning to become a major area of research for many coating usages, including abrasion and corrosion resistance. Our primary approach is to prepare the inorganic phase in situ within the film formation process of the organic phase. The inorganic phase is introduced via sol-gel chemistry into a thermosetting organic phase. By this method, the size, periodicity, spatial positioning, and density of the inorganic phase can be controlled. An important aspect of the inorganic/organic hybrid materials is the coupling agent. The initial task of the coupling agent is to provide uniform mixing of the oligomeric organic phase with the sol-gel precursors, which are otherwise immiscible. UV-curable inorganic/organic hybrid systems have the advantages of a rapid cure and the ability to be used on heat sensitive substrates such as molded plastics. Also, it is possible to have better control of the growth of the inorganic phase using UV curing. It is our ultimate goal to completely separate the curing of inorganic and organic phases to gain complete control over the morphology, and hence optimization of “all” the coating properties. Thus far, it has been found that concomitant UV curing of the inorganic and organic phases using titanium sol-gel precursors afforded nanocomposite coatings which completely block the substrate from UV light while maintaining a transparent to visible light. Also, it has been found that the morphology of the inorganic phase is highly dependent on the concentration and reactivity of the coupling agent. Presented at the 82nd Annual Meeting of the Federation of Societies for Coatings Technology, October 27–29, 2004, in Chicago, IL.     

Ethanol and (−)-α-Pinene: Attractant Kairomones for Some Large Wood-Boring Beetles in Southeastern USA

Ethanol and α-pinene were tested as attractants for large wood-boring pine beetles in Alabama, Florida, Georgia, North Carolina, and South Carolina in 2002–2004. Multiple-funnel traps baited with (−)-α-pinene (released at about 2 g/d at 25–28°C) were attractive to the following Cerambycidae: Acanthocinus nodosus, A. obsoletus, Arhopalus rusticus nubilus, Asemum striatum, Monochamus titillator, Prionus pocularis, Xylotrechus integer, and X. sagittatus sagittatus. Buprestis lineata (Buprestidae), Alaus myops (Elateridae), and Hylobius pales and Pachylobius picivorus (Curculionidae) were also attracted to traps baited with (−)-α-pinene. In many locations, ethanol synergized attraction of the cerambycids Acanthocinus nodosus, A. obsoletus, Arhopalus r. nubilus, Monochamus titillator, and Xylotrechus s. sagittatus (but not Asemum striatum, Prionus pocularis, or Xylotrechus integer) to traps baited with (−)-α-pinene. Similarly, attraction of Alaus myops, Hylobius pales, and Pachylobius picivorus (but not Buprestis lineata) to traps baited with (−)-α-pinene was synergized by ethanol. These results provide support for the use of traps baited with ethanol and (−)-α-pinene to detect and monitor common large wood-boring beetles from the southeastern region of the USA at ports-of-entry in other countries, as well as forested areas in the USA.