Carbon Molecule

In 1985, Buckminsterfullerene (fullerene-60) C(subscript 60) was discovered serendipitously during graphite laser vaporization experiments designed to simulate the chemistry in a red giant carbon star. The molecule was isolated for the first time in macroscopic amounts in 1990, a breakthrough which triggered an explosion of research into its chemical and physical properties. The fullerenes hold great potential for material science applications, such as semiconductors and microscopic engineering, and as new compounds for pharmaceuticals, polymers and the chemical industry. Buckminsterfullerene possesses a beauty and elegance that has excited the imaginations of laymen and scientists alike. It seems almost impossible to comprehend how the existence of the third well-characterized allotrope of carbon could have evaded discovery until virtually the end of the twentieth century. In October 1992 a Discussion Meeting of the Royal Society entitled 'A Post-Buckminsterfullerene View of the Chemistry, Physics and Astrophysics of Carbon' organized by H. W. Kroto, A. L. MacKay, G. Turner and D. R. M. Walton, was held to celebrate this exciting advance. The scientists who played key roles in the discovery and who are currently uncovering fascinating problems and the implications of this elegant molecule, presented the papers published in this book.

Cyclopropane - Cyclopropane is a cycloalkane molecule with the molecular formula C3H6 consisting of three carbon atoms linked to each other to form a ring, with each carbon atom bearing two hydrogen atoms. The bonds between the carbon atoms are a great deal weaker than in a typical carbon-carbon bond.

Polyene - Polyenes are poly-unsaturated organic compounds that contain one or more sequences of alternating double and single carbon-carbon bonds. These double carbon-carbon bonds interact in a process known as conjugation, which results in an overall lower energy state of the molecule.

Cubane - Cubane (C8H8) is a synthetic hydrocarbon molecule that consists of eight carbon atoms arranged at the corners of a cube, with one hydrogen atom attached to each carbon molecule. Cubane is a solid crystalline substance.

Rearrangement reaction - A rearrangement reaction is a broad class of organic reactions where the carbon skeleton of a molecule is rearranged to give a structural isomer of the original molecule. Often a substituent moves from one atom to another atom in the same molecule.

carbonmolecule

Carbon Molecule - Carbon Molecule Cyclopropane - Cyclopropane is a cycloalkane molecule with the molecular formula C3H6 consisting of three carbon atoms linked to each other to form a ring, with each carbon atom bearing two hydrogen atoms. The bonds between the carbon atoms are a great deal weaker than in a typical carbon-carbon bond. Polyene - Polyenes are poly-unsaturated organic compounds that contain one or more sequences of alternating double and single carbon-carbon bonds. These double carbon-carbon bonds interact in a ...

Sugar Molecule - Sugar Molecule Inverted sugar syrup - Inverted sugar syrup is sucrose-based syrup treated with the enzyme invertase, and/or an acid, which splits each sucrose molecule into one glucose and one fructose molecule, giving a more rounded sweetness and preventing crystallization. This property is valued especially by bakers, who call the products trimoline. Glycation - Glycation is the result of a sugar reducing molecule, such as fructose or glucose, bonding to a protein or lipid molecule without the controlling action of an ...

Inorganic Molecule - Inorganic Molecule Nucleophilic substitution - In chemistry, nucleophilic substitution is a class of substitution reaction in which an electron-rich nucleophile attacks a molecule and replaces a group or atom, called the leaving group. It is a fundamental class of reaction in organic chemistry, where the reaction occurs at a carbon centre, but nucleophilic substitutions are also well known in inorganic covalent compounds too. Chemiosmotic Phosphorylation - Chemiosmotic phosphorylation is the third, and final, biological pathway responsible for the production of ATP from ...

Carbohydrate Molecule - Carbohydrate Molecule Lipopolysaccharide - A lipopolysaccharide (LPS) is a large molecule that contains both lipid and a carbohydrate. They are a major suprastructure of Gram-negative bacteria which contributes greatly to the structural integrity of the bacteria, and protects them from host immune defenses. Low-carbohydrate diet - Low-carbohydrate diets or low carb diets, are food diet programs for weight loss and dietary health that advocate restricted carbohydrate consumption, based on research that ties carbohydrate consumption with increased blood insulin levels, and ...