Which allotrope of carbon is thermodynamically more stable

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Carbon disulphide is perhaps the most important as a solvent and a synthetic reagent. It gives rise to other carbon sulphur compounds such as:. These ions are important ligands for transition metals, and the dithiocarbamtes are sued as agricultural fungicides.

Carbon is capable of forming many allotropes in addition to the well known diamond and graphite forms. The physical properties of carbon vary widely with the allotropic form.

For example, diamond is highly transparent, but graphite is opaque and black. Diamond has a very low electrical conductivity, while graphite is a very good conductor. Under normal conditions, diamond, carbon nanotubes, and graphene have the highest thermal conductivities of all known materials.

All carbon allotropes are solids under normal conditions, with graphite being the most thermodynamically stable form. They are chemically resistant and require high temperature to react even with oxygen. Carbon Monoxide A colourless and very dangerously toxic gas - it has no smell - boiling point o C. Carbon monoxide is unique in that it is a weak Lewis base s -donor through carbon but a very strong p -acceptor. Asa ligand it stabilizes transition metals in low zero or negative oxidation states.

Carbon Dioxide and Carbonic Acid Carbon dioxide makes up about 0. It is mainly produced from volcanic activity, fermentation of organic matter and fires of al types.

This delocalization adds up to its thermal stability. Because of its compact structure, it has high density and is the hardest substance known. Coal is an amorphous allotropic form of carbon. It does not have a defined structure or geometry and hence is less stable than graphite.