Chiral and Steric Recognition in Optically Active, Isotactic, Alternating .alpha.-Olefin-Carbon Monoxide Copolymers. Effect on Physical Properties and Chemical Reactivity

1995 ◽  
Vol 117 (26) ◽  
pp. 7037-7038 ◽  
Author(s):  
Zhaozhong Jiang ◽  
Michelle T. Boyer ◽  
Ayusman Sen
Keyword(s):  
Carbon Monoxide ◽  
Physical Properties ◽  
Chemical Reactivity ◽  
Optically Active ◽  
Alpha Olefin

Chemistry of metal hydrides. VI. Cationic platinum(II) carbonyls stabilized with tertiary arsines and stibines

1969 ◽  
Vol 47 (14) ◽  
pp. 2665-2669 ◽  
Author(s):  
W. J. Cherwinski ◽  
H. C. Clark
Keyword(s):  
Carbon Dioxide ◽  
Carbon Monoxide ◽  
Physical Properties ◽  
Spectroscopic Data ◽  
Chemical Reactivity ◽  
Metal Hydrides ◽  
Tertiary Arsines ◽  
Reaction With Water ◽  
Carbonyl Species

The synthesis of [Pt2Cl2(R3M)4][BF4]2, and its cleavage with carbon monoxide to form the cationic carbonyl species [PtCl(CO)(R3M)2]+ is described for R = ethyl or phenyl, and M = As or Sb. A comparison of the physical properties and spectroscopic data of these compounds, and the analogues for M = P is made with related complexes of other transition metals.Only trans-[PtCl(CO)(Et3As)2][BF4] reacts with water to give trans-[PtHCl(Et3As)2] and carbon dioxide. trans-[PtCl(CO)(Ph3As)2][BF4] reacts readily with methanol or ethanol to give an alkoxy carbonyl [PtCl(COOR)(Ph3As)2], where R = CH3 or C2H5. Unlike their phosphine analogues, these species and the stibine-stabilized cationic carbonyls do not produce the corresponding hydrides on reaction with water in the presence of a salt catalyst. These differences in chemical reactivity are related to the basicity of the ligands.

Palladium Promoted Copolymerization of Carbon Monoxide with Polar or Nonpolar Olefinic Monomers

2020 ◽  
Vol 24 ◽  
Author(s):  
Yanlin Zong ◽  
Qiankun Li ◽  
Hongliang Mu ◽  
Zhongbao Jian
Keyword(s):  
Carbon Monoxide ◽  
Physical Properties ◽  
Vinyl Monomers ◽  
Pd Catalysts ◽  
Catalytic Systems

Abstract:: The copolymers of carbon monoxide (CO) and olefins, namely polyketones, are a family of widely used materi-als. In the catalytic preparation of these materials, palladium(II) catalysts represent the most successful catalytic systems. The production of both alternating and non-alternating polyketones has been achieved, with great difference in their physical properties. Herein, a variety of palladium(II) catalysts employed for the copolymerization of CO with various olefinic mon-omers such as ethylene, α-olefins, styrene and polar vinyl monomers are fully summarized. The influence of important fac-tors such as solvents and counterions on specific copolymerization, is also discussed. This review aims to enlighten the de-sign of new Pd catalysts with improved properties, as well as the development of new polyketone materials.

Chemical reactivity of solid [PtnC60] towards carbon monoxide

2003 ◽  
Vol 64 (12) ◽  
pp. 2423-2428 ◽  
Author(s):  
Marcelo Hawrylak Herbst ◽  
Gilson Herbert Magalhães Dias
Keyword(s):  
Carbon Monoxide ◽  
Chemical Reactivity

XVIII.—The Physical Properties of Mixed Solutions of Independent Optically - Active Substances

1907 ◽  
Vol 27 ◽  
pp. 172-180
Author(s):  
Clerk Ranken ◽  
W. W. Taylor
Keyword(s):  
Physical Properties ◽  
Active Substance ◽  
Optically Active ◽  
Present Communication ◽  
Points Of Interest ◽  
Systematic Examination ◽  
Mixed Solutions ◽  
Two Systems ◽  
Active Substances ◽  
Optically Active Substances

The two systems containing one of a pair of optically-active stereoisomers and an independent optically-active substance present many points of interest and importance, but have not hitherto been investigated with any degree of completeness. What is known about them may fairly be said to consist of a series of isolated facts. The present communication also contributes a few more isolated observations, and is, in reality, a preliminary to a more systematic examination of the whole subject.

ChemInform Abstract: Hexakis-Adducts of [60]Fullerene with Different Addition Patterns: Templated Synthesis, Physical Properties, and Chemical Reactivity.

ChemInform ◽  
2010 ◽  
Vol 32 (34) ◽  
pp. no-no
Author(s):  
Jean-Pascal Bourgeois ◽  
Craig R. Woods ◽  
Francesca Cardullo ◽  
Tilo Habicher ◽  
Jean-Francois Nierengarten ◽  
...  
Keyword(s):  
Physical Properties ◽  
Chemical Reactivity ◽  
Templated Synthesis
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