Iranian Journal of Mathematical ChemistryIranian Journal of Mathematical Chemistry
http://ijmc.kashanu.ac.ir/
Wed, 23 Jan 2019 09:11:35 +0100FeedCreatorIranian Journal of Mathematical Chemistry
http://ijmc.kashanu.ac.ir/
Feed provided by Iranian Journal of Mathematical Chemistry. Click to visit.Spongy Diamond
http://ijmc.kashanu.ac.ir/article_81623_10444.html
Rhombellanes are mathematical structures existing in various environments, in crystal or quasicrystal networks, or even in their homeomorphs, further possible becoming real molecules. Rhombellanes originate in the K2.3 complete bipartite graph, a tile found in the linear polymeric staffanes. In close analogy, a rod-like polymer derived from hexahydroxy-cyclohexane was imagined. Further, the idea of linear polymer synthesized from dehydro-adamantane was extended in the design of a three-dimensional crystal network, named dia(s), of which tile is a hyper-adamantane (an adamantane of which vertices are just adamantanes). It was suggested that this network could be synthesized starting from the real molecule tetrabromo-adamantane, by dehydrogenation and polymerization. The crystal structures herein proposed were characterized by connectivity and ring surrounding sequences and also by the Omega polynomial.Thu, 28 Feb 2019 20:30:00 +0100Trees with the greatest Wiener and edge-Wiener index
http://ijmc.kashanu.ac.ir/article_48335_0.html
The Wiener index W and the edge-Wiener index W_e of G are defined as the sum of distances between all pairs of vertices in G and the sum of distances between all pairs of edges in G, respectively. In this paper, we identify the four trees, with the first through fourth greatest Wiener and edge-Wiener index among all trees of order n ≥ 10.Tue, 11 Jul 2017 19:30:00 +0100