Reactions of organometallic complexes included in cyclodextrins: reactivity of alkyldicarbonyl(η5-cyclopentadienyl)iron complexes towards carbon monoxide and sulphur dioxide in the solid state

Author(s):  
Masayuki Shimada ◽  
Akira Harada ◽  
Shigetoshi Takahashi
1978 ◽  
Vol 33 (2) ◽  
pp. 190-196 ◽  
Author(s):  
D. Sellmann ◽  
P. Kreutzer ◽  
E. Unger

The reaction of CO with iron salts in the presence of benzene-dithiol depends on the oxidation state of iron, pH of the solution, temperature and CO pressure. In alkaline EtOH one obtains labile cis-[Fe(CO)2(C6H4S2)2]2- complexes, which cannot be isolated in the solid state. On acidifying, oxidizing with O2 or heating the solution, the CO ligands are split off; after reduction with NaBH4, CO can be co-ordinated again at pH > 7 under normal conditions. Reacting benzene-1-thiomethyl-2-thiol in alkaline medium with Fe2+ and CO yields the isolable [cis-Fe(CO)2(CH3S-C6H4-S)2], which is characterized by elemental analyses, IR, 1H NMR and mass spectra. It is a labile complex coordinating CO reversibly


2018 ◽  
Vol 9 (1) ◽  
Author(s):  
Helen R. Sharpe ◽  
Ana M. Geer ◽  
Laurence J. Taylor ◽  
Benjamin M. Gridley ◽  
Toby J. Blundell ◽  
...  

2001 ◽  
Vol 79 (3) ◽  
pp. 263-271
Author(s):  
Paul K Baker ◽  
Michael GB Drew ◽  
Deborah S Evans

Reaction of [WI2(CO)3(NCMe)2] with two equivalents of 1-phenyl-1-propyne (MeC2Ph) in CH2Cl2, and in the absence of light, gave the bis(1-phenyl-1-propyne) complex [WI2(CO)(NCMe)(η2-MeC2Ph)2] (1) in 77% yield. Treatment of equimolar quantities of 1 and NCR (R = Et, i-Pr, t-Bu, Ph) in CH2Cl2 afforded the nitrile-exchanged products, [WI2(CO)(NCR)(η2-MeC2Ph)2] (2-5) (R = Et (2), i-Pr (3), t-Bu (4), Ph (5)). Complexes 1, 2, and 5 were structurally characterized by X-ray crystallography. All three structures have the same pseudo-octahedral geometry, with the equatorial sites being occupied by cis and parallel alkyne groups, which are trans to the cis-iodo groups. The trans carbon monoxide and acetonitrile ligands occupy the axial sites. In structures 1 and 2, the methyl and phenyl substituents of the 1-phenyl-1-propyne ligands are cis to each other, whereas for the bulkier NCPh complex (5), the methyl and phenyl groups are trans to one another. This is the first time that this arrangement has been observed in the solid state in bis(alkyne) complexes of this type.Key words: bis(1-phenyl-1-propyne), carbonyl, nitrile, diiodo, tungsten(II), crystal structures.


Gold Bulletin ◽  
2018 ◽  
Vol 51 (4) ◽  
pp. 153-162 ◽  
Author(s):  
Thelma Ngwenya ◽  
Isaac Nongwe ◽  
Linda L. Jewell

2017 ◽  
Vol 5 (11) ◽  
pp. 2871-2882 ◽  
Author(s):  
Sudesna Chakravarty ◽  
Arpan Datta ◽  
Neelotpal Sen Sarma

Polyvinyl alcohol-formaldehyde–coumarin 6 (PVFCOU) polymer composite as a novel solid-state sensor material for SO2 gas sensing.


2019 ◽  
Vol 880 ◽  
pp. 116-123 ◽  
Author(s):  
Michito Shiotsuka ◽  
Rikuo Ono ◽  
Yoshihiro Kurono ◽  
Taiki Asano ◽  
Yusuke Sakae

Underground drainage monitoring system plays an important role in keeping the cities clean and healthy. Compared to other countries, India consists of highest number of sewage workers. Exposure of sewage workers to poisonous gases like hydrogen sulphide, sulphur dioxide, carbon monoxide, methane, ammonia, nitrogen oxide increases the death of the sewage workers. The main aim of this project is to design a network system which helps in monitoring poisonous gases present in sewage. Whenever the gas level crosses the threshold value, the information with different gas ppm values is displayed in the smart phone through the app. It also indicates whether it is safe for the manual scavengers to work in the environment or not.


2018 ◽  
Vol 54 (65) ◽  
pp. 9063-9066 ◽  
Author(s):  
Marta Mon ◽  
Estefanía Tiburcio ◽  
Jesús Ferrando-Soria ◽  
Rodrigo Gil San Millán ◽  
Jorge A. R. Navarro ◽  
...  

We report the application of a post-synthetic solid-state cation-exchange process to afford a novel 3D MOF with hydrated barium cations hosted at pores able to trigger selective and reversible SO2adsorption.


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