Stability of adamantane to donor liquefaction conditions: implications toward the structure of coal

✍ Scribed by Thomas Aczel; Martin L. Gorbaty; Peter S. Maa; Richard H. Schlosberg

• Publisher: Elsevier Science
• Year: 1975
• Tongue: English
• Weight: 141 KB
• Volume: 54
• Category: Article
• ISSN: 0016-2361
• DOI: 10.1016/0016-2361(75)90049-6

✦ Synopsis

Apart from the need to assess fully the above controversial arguments and counter-arguments, perhaps the variation of true density with rank could be more indicative of the nature of the carbon skeleton in coal. It is well known' that after the 84-87% carbon level the density of coal increases continuously and that on extrapolation beyond the anthracite region (C >96%) it meets the ordinate precisely at 2.25 g/cm' at the 100% carbon level, the density of graphite. Hence if the end-product of the genetic development of coal tends to be graphite, it is reasonable to believe that a polynuclear aromatic core structure must have been generated in the earlier stages of coal formation.

The experiments cited earlier have at least indicated that the concept of a polyamantane type of structure for coal, based as it is on a presumed absolute and invariable specifl-Letters to the Editor city of hypohalite oxidation, is not tenable.