Malcolm L. H. Green

Bio: Malcolm L. H. Green is an academic researcher from University of Oxford. The author has contributed to research in topics: Carbon nanotube & Cyclopentadienyl complex. The author has an hindex of 82, co-authored 800 publications receiving 31121 citations. Previous affiliations of Malcolm L. H. Green include Gas Technology Institute & University of Illinois at Urbana–Champaign.

Organometallic Complexes of Fullerenes

Abstract: Publisher Summary This chapter discusses organometallic complexes of fullerenes. The solid-state and organic chemistries of fullerenes are currently active areas of research with possible applications, for instance, in the field of superconductivity. The chapter describes the preparation, characterization, and properties of all nonpolymeric complexes that contain a metal σ- or π-bound to a fullerene. They readily react with many electron-rich metal centers to form stable π or σ complexes. Although the π complexes have not yet found any practical uses, they have proved helpful in structural characterization, as well as providing some insight into the dynamical behavior of fullerenes. The σ complexes are a relatively unexplored area, but where they have been prepared, they are useful intermediates in the preparation of organic fullerene adducts. As a result, fullerenes are more reactive than might be expected and behave like giant closed-cage alkenes rather than super arenes.

Process for the conversion of methane to synthesis gas

Abstract: Un procede de conversion d'un melange gazeux reactant compose de CO2, O2 et CH4 consiste a mettre en contact le gaz reactant avec un catalyseur solide a une temperature comprise entre 750 et 850 °C, lequel catalyseur se compose d'un oxyde ou d'un metal de transition du bloc d tel qu'un metal du groupe VIII sur un support d'oxyde metallique tel que l'alumine, et qui convertit de maniere selective le gaz reactant en un melange gazeux final comprenant H2 et CO. A method of converting a reactant gas mixture of CO2 compound, O2 and CH4 involves contacting the reactant gas with a solid catalyst at a temperature between 750 and 850 ° C, which catalyst comprises an oxide or a block of transition metal such as a Group VIII metal on a metal oxide support such as alumina, which selectively converts the reactant gas in a final gas mixture comprising H2 and CO.

Activation of sp3 carbon–hydrogen bonds of alkylbenzenes by rhenium forming binuclear µ-arylidene derivatives

Abstract: Co-condensation of rhenium atoms with the arenas 1,3,5-R3C6H3, R3= MeH2 or Me3, or 1,4-Me2C6H4 gives the compounds [{(η-arene)Re}2(µ-CHR′)(µ-H)2], where R′= Ph, 3,5-Me2C6H3, or 4-MeC6H4 respectively, which contain a µ-arylidene group; the structurally related compounds [{(η-arene)Re}2(µ-CR1R2)(µ-H)2], where R1,R2= Me, Ph or H, CH2Ph, are formed from rhenium atoms and ethylbenzene.

Spatially resolved EELS applied to the study of a one‐dimensional solid solution of AgCl1−xIx formed within single wall carbon nanotubes

Abstract: Spatially resolved electron loss spectra (EELS) have been recorded for single walled carbon nanotubes (SWNTs) filled with metastable crystalline AgCl1−xIx. High resolution transmission electron microscopy (HRTEM) revealed that the incorporated halide crystals are derived from a 1D wurzite ‘tunnel’ structure with reduced Ag coordination with Cl and I randomly distributed over the halogen sites. High resolution EELS line scan profiles were used to probe the local composition of the nanocomposites and to distinguish between filled and unfilled tubules.

Single-shell carbon nanotubes of 1-nm diameter

Abstract: CARBON nanotubes1 are expected to have a wide variety of interesting properties. Capillarity in open tubes has already been demonstrated2–5, while predictions regarding their electronic structure6–8 and mechanical strength9 remain to be tested. To examine the properties of these structures, one needs tubes with well defined morphologies, length, thickness and a number of concentric shells; but the normal carbon-arc synthesis10,11 yields a range of tube types. In particular, most calculations have been concerned with single-shell tubes, whereas the carbon-arc synthesis produces almost entirely multi-shell tubes. Here we report the synthesis of abundant single-shell tubes with diameters of about one nanometre. Whereas the multi-shell nanotubes are formed on the carbon cathode, these single-shell tubes grow in the gas phase. Electron diffraction from a single tube allows us to confirm the helical arrangement of carbon hexagons deduced previously for multi-shell tubes1.

Chemistry and properties of nanocrystals of different shapes.

Abstract: The interest in nanoscale materials stems from the fact that new properties are acquired at this length scale and, equally important, that these properties * To whom correspondence should be addressed. Phone, 404-8940292; fax, 404-894-0294; e-mail, mostafa.el-sayed@ chemistry.gatech.edu. † Case Western Reserve UniversitysMillis 2258. ‡ Phone, 216-368-5918; fax, 216-368-3006; e-mail, burda@case.edu. § Georgia Institute of Technology. 1025 Chem. Rev. 2005, 105, 1025−1102

Carbon Nanotubes: Present and Future Commercial Applications

Abstract: Worldwide commercial interest in carbon nanotubes (CNTs) is reflected in a production capacity that presently exceeds several thousand tons per year. Currently, bulk CNT powders are incorporated in diverse commercial products ranging from rechargeable batteries, automotive parts, and sporting goods to boat hulls and water filters. Advances in CNT synthesis, purification, and chemical modification are enabling integration of CNTs in thin-film electronics and large-area coatings. Although not yet providing compelling mechanical strength or electrical or thermal conductivities for many applications, CNT yarns and sheets already have promising performance for applications including supercapacitors, actuators, and lightweight electromagnetic shields.

Nanoparticle therapeutics: an emerging treatment modality for cancer

Abstract: Nanoparticles — particles in the size range 1–100 nm — are emerging as a class of therapeutics for cancer. Early clinical results suggest that nanoparticle therapeutics can show enhanced efficacy, while simultaneously reducing side effects, owing to properties such as more targeted localization in tumours and active cellular uptake. Here, we highlight the features of nanoparticle therapeutics that distinguish them from previous anticancer therapies, and describe how these features provide the potential for therapeutic effects that are not achievable with other modalities. While large numbers of preclinical studies have been published, the emphasis here is placed on preclinical and clinical studies that are likely to affect clinical investigations and their implications for advancing the treatment of patients with cancer.

Chemistry of Carbon Nanotubes

Abstract: Department of Materials Science, University of Patras, 26504 Rio Patras, Greece, Theoretical and Physical Chemistry Institute, National Hellenic Research Foundation, 48 Vass. Constantinou Avenue, 116 35 Athens, Greece, Institut de Biologie Moleculaire et Cellulaire, UPR9021 CNRS, Immunologie et Chimie Therapeutiques, 67084 Strasbourg, France, and Dipartimento di Scienze Farmaceutiche, Universita di Trieste, Piazzale Europa 1, 34127 Trieste, Italy