BENZENOID

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On-surface Synthesis of Multiple Non-benzenoid Carbohelicenes Fused with Fluorene Unit(s)
《Chinese Journal of Chemistry》2024年第22期2811-2817,共7页Wei Xiong Xi Geng Jianchen Lu Gefei Niu Boyu Fu Yi Zhang Shicheng Li Yuhang Yang Nianqiang Li Lei Gao Jinming Cai 
supported by the National Natural Science Foundation of China(Nos.62271238,22372074,62301240);Yunnan Fundamental Research Projects(Nos.202201AT070078,202201BE070001-009 and 202301AW070017);the Major Basic Research Project of Science and Technology of Yunnan(202302AG050007);Yunnan Innovation Team of Graphene Mechanism Research and Application Industrialization(202305AS350017);Graphene Application and Engineering Research Centre of Education Department of Yunnan Providence(KKPP202351001);the Analysis and Testing Foundation of KUST(2021T20170056).
Carbohelicenes have garnered considerable attention for their inherent chirality and structural flexibility.Increasing multi-helicity and incorporating non-six-membered rings to substitute benzenoid rings within helic...
关键词：HELICENE Scanning tunneling microscopy On-surface synthesis Helicity switching Hydrocarbons Molecular recognition Nanostructures 
The Annealed Entropy of Wiener Number on Random Double Hexagonal Chains
《Applied Mathematics》2017年第10期1473-1480,共8页Haizhen Ren Xueli Su 
We study a random planar honeycomb lattice model, namely the random double hexagonal chains. This is a lattice system with nonperiodic boundary condition. The Wiener number is an important molecular descriptor based o...
关键词：RANDOM BENZENOID Chain WIENER NUMBER ENTROPY 
On the Sanskruti Index of Circumcoronene Series of Benzenoid
《Applied Mathematics》2017年第4期520-524,共5页Yingying Gao Mohammad Reza Farahani Muhammad Shoaib Sardar Sohail Zafar 
Let G = (V;E) be a simple connected graph. The sets of vertices and edges of G are denoted by V = V(G) and E = E(G), respectively. In such a simple molecular graph, vertices represent atoms and edges represent bonds. ...
关键词：Sanskruti INDEX MOLECULAR GRAPH Circumcoronene SERIES of BENZENOID 
The First Eccentric Zagreb Index of Linear Polycene Parallelogram of Benzenoid
《Open Journal of Applied Sciences》2016年第5期315-318,共4页Mehdi Alaeiyan Mohammad Reza Farahani Muhammad Kamran Jamil M. R. Rajesh Kanna 
Let G = (V,E) be a graph, where V(G) is a non-empty set of vertices and E(G) is a set of edges, e = uv∈E(G), d(u) is degree of vertex u. Then the first Zagreb polynomial and the first Zagreb index Zg1(G,x)...
关键词：Molecular Graph Linear Polycene Parallelogram of Benzenoid Zagreb Topological Index Eccentricity Connectivity Index Cut Method 
THE CLAR FORMULAS OF REGULAR t-TIER STRIP BENZENOID SYSTEMS
《Systems Science and Mathematical Sciences》1995年第4期327-337,共11页ZHANG Heping(Department of Mathematics,Lanzhou University,Lanzhou 730000,China) 
ＴＨＥＣＬＡＲＦＯＲＭＵＬＡＳＯＦＲＥＧＵＬＡＲｔ－ＴＩＥＲＳＴＲＩＰＢＥＮＺＥＮＯＩＤＳＹＳＴＥＭＳＴＨＥＣＬＡＲＦＯＲＭＵＬＡＳＯＦＲＥＧＵＬＡＲｔ－ＴＩＥＲＳＴＲＩＰＢＥＮＺＥＮＯＩＤＳＹＳＴＥＭＳ￥ＺＨＡＮＧ...
关键词：BENZENOID system PERFECT matching Clar formula. 
SOME　TOPOLOGICAL　PROPERTIES　OF　BENZENOID　S_n，T_n－ISOMERS　WITH　n－RADICAL　CONNECTION
《Applied Mathematics(A Journal of Chinese Universities)》1995年第2期207-214,共8页ZHANGFUJI CHENZHIBO 
We consider a series of benzenoid isomers obtained by attaching fragments to an mradical. Some of their topological properties, such as the number of Kekule patterns and the maximum number of aromatic π-sextets are e...
关键词：Benzenoid System ISOMER topological properties. 
Estimation of the Resonance Energy of Benzenoid Hydrocarbon
《Chinese Science Bulletin》1993年第24期2040-2043,共4页张福基 刘育亭 
Project supported by the National Natural Sdence Foundation of China.
In order to study the stability and estimate the resonance energy of benzenoid systems, many chemists agree that some kinds of Kekulé structures are more important than the others. Dewar and Longuet-Higgins, Clar, Ra...
关键词：BENZENOID HYDROCARBON RESONANCE energy. 
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