Copolymerization of Ethylene with Cyclohexene (CHE) Catalyzed byNonbridgedHalf-Titanocenes Containing Aryloxo Ligand:  Notable Effect of Both Cyclopentadienyl and Anionic Donor Ligand for Efficient CHE Incorporation

2005 ◽  
Vol 127 (13) ◽  
pp. 4582-4583 ◽  
Author(s):  
Wei Wang ◽  
Michiya Fujiki ◽  
Kotohiro Nomura
Keyword(s):  
Donor Ligand ◽  
Notable Effect

Temperature Dependence of the Self-Assembled Styrene Based Random Ionomers in Aqueous Solution

2003 ◽  
Vol 775 ◽  
Author(s):  
Sung-Hwa Oh ◽  
Ju-Myung Song ◽  
Joon-Seop Kim ◽  
Hyang-Rim Oh ◽  
Jeong-A Yu
Keyword(s):  
Partition Coefficients ◽  
Room Temperature ◽  
Aqueous Media ◽  
The Self ◽  
Spectroscopic Methods ◽  
Ion Content ◽  
Repeat Units ◽  
Notable Effect ◽  
Order Of Magnitude ◽  
Experimental Errors

AbstractSolution behaviors of poly(styrene-co-sodium methacrylate) were studied by fluorescence spectroscopic methods using pyrene as a probe. The mol% of methacrylate was in the range 3.6–9.4. Water and N,N-dimethylforamide(DMF) mixture was used as a solvent (DMF/water = 0.2 mol %). The critical micelle (or aggregation) concentrations of ionomers and the partition coefficients of pyrene were obtained the temperature range 10–80°C. At room temperature, the values of CMCs (or CACs) were in the range 4.7 ×10-6 5.3 ×10-6 g/mL and we could not find any notable effect of the content of ionic repeat units within the experimental errors. Unlike CMCs, as the ion content increased, partitioning of pyrene between the hydrophobic aggregates and an aqueous media decreased from 1.5 ×105 to 9.4 ×104. As the temperature increased from 10 to 80 °C, the values of CMCs increased less than one order of magnitude. While, the partition coefficients of pyrene decreased one order of magnitude and the effect of the ion content became negligible.

Mono-, di- and tri-nuclear PtII(C^N)(N-donor ligand)Cl complexes showing aggregation-induced phosphorescent emission (AIPE) behavior for efficient solution-processed organic light-emitting devices

2021 ◽  
Author(s):  
Xi Chen ◽  
Yuling Sun ◽  
Xinyi Zhao ◽  
Xuming Deng ◽  
Xiaolong Yang ◽  
...  
Keyword(s):  
Efficient Solution ◽  
Solution Processed ◽  
Donor Ligand ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Organic Light ◽  
Organic Light Emitting Devices

Mono-, di- and tri-nuclear PtII(C^N)(N-donor ligand)Cl complexes Ph-PAYPt1, Ph-PAYPt2 and Ph-PAYPt3 are designed and prepared.

Aggregation-induced phosphorescent emission (AIPE) behaviors in PtII(C^N)(N-donor ligand)Cl-type complexes through restrained D2d deformation of the coordinating skeleton and their optoelectronic properties

2021 ◽  
Author(s):  
hua yang ◽  
Huiying Li ◽  
Ling Yue ◽  
Xi Chen ◽  
Dongdong Song ◽  
...  
Keyword(s):  
Optoelectronic Properties ◽  
Donor Ligands ◽  
Donor Ligand ◽  
Electrochemical Behaviors

A series of four-coordinated PtII(C^N)(N-donor ligand)Cl-type complexes have been synthesized through combination between C^N-type and N-donor ligands with different size. Photophysical features, electrochemical behaviors and electroluminescent (EL) performances have been...

From lithium to sodium: design of heterometallic molecular precursors for the NaMO2 cathode materials

2019 ◽  
Vol 55 (50) ◽  
pp. 7243-7246 ◽  
Author(s):  
Haixiang Han ◽  
Zheng Zhou ◽  
Jesse C. Carozza ◽  
Jeff Lengyel ◽  
Yuan Yao ◽  
...  
Keyword(s):  
Cathode Materials ◽  
Model Structure ◽  
Neutral Donor ◽  
Donor Ligand ◽  
Molecular Precursors ◽  
Oxide Cathode

Based on the Li2M2L6 model structure, an addition of extra neutral donor ligand enables the formation of Na2M2L6(THF)2 molecular precursors for the NaMO2 oxide cathode materials.

The chemistry of stabilized clusters

1982 ◽  
Vol 308 (1501) ◽  
pp. 27-34 ◽  
Keyword(s):  
Electron Donor ◽  
Organic Molecules ◽  
Metal Cluster ◽  
Organic Substrates ◽  
Insertion Reactions ◽  
Donor Ligand ◽  
Small Organic Molecules ◽  
Wide Range ◽  
Metal Metal ◽  
High Yields

Studies of the chemistry of metal cluster complexes and, in particular, their reactions with small organic molecules, have been confined to relatively few systems. Among the reasons for this are: (i) not many clusters are easily synthesized in high yields; (ii) their reactions often give a multitude of products that are difficult to separate and characterize; (iii) the conditions required to bring about reactions often lead to fragmentation of the cluster into lower nuclearity (often mononuclear) species. One cluster whose chemistry has been extensively studied is [Os 3 H 2 (CO) 10 ]. This can be synthesized in high yields from [Os 3 (CO) 12 ] + H 2 (Knox et al. 1975) and reacts readily under mild conditions with a wide range of electron-donor molecules by virtue of its coordinative unsaturation (Shapley et al. 1975; Deeming & Hasso 1976; Adams & Golembeski 1979). Formally, one may consider that a metal—metal double bond is present, which is reduced to a single bond on coordination of an additional two-electron donor ligand such as an organophosphine. The presence of metal—hydrogen bonds in this cluster and the cluster’s ability to coordinate organic substrates enable it to undergo a wide variety of insertion reactions, leading to products that may be regarded as intermediates in the reduction of organic molecules by clusters (Deeming & Hasso 1975; Keister & Shapley 1975).

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