A simple rule of the sequential bond enthalpies in clusters and the possibility of liquid-phase carbon

✍ Scribed by Yu-Ran Luo

• Publisher: Elsevier Science
• Year: 2008
• Tongue: English
• Weight: 364 KB
• Volume: 142
• Category: Article
• ISSN: 0167-7322
• DOI: 10.1016/j.molliq.2008.03.009

✦ Synopsis

This letter reports a simple rule on the sequential bond enthalpies D(B(M) x -M) in clusters B(M) x + 1 , where B is a bonding particle (neutrals, cations, anions, complexes, biochemical particles), M is a neutral material molecule (inorganic and organic) or atom (metal, non-metal and rare gas), x describes the cluster size, and x = 0, 1, 2, 3, …, etc. Thousands of experimental results for 60 kinds of materials M and 310 kinds of clusters B (M) x + 1 strongly support the simple rule: the sequential bond enthalpies in clusters regularly drop to an intrinsic value, the vaporization enthalpies of the liquid-phase materials M, i.e., D(B(M) x -M, large x) ~Δvap H(M). Using this simple rule, we have discussed the possibility of liquid-phase carbon.