Results 21 to 30 of about 8,344 (184)

On Euler-Sombor index of benzenoids and phenylenes [PDF]

Kragujevac Journal of Science
The Euler-Sombor index of a graph, EU(G), is a recently introduced vertex-degree based topological index. It is derived from the geometric consideration of a graph.
Redžepović Izudin, Muminović Lejla
doaj   +1 more source

On p-electron conjugation in the five-membered ring of fluoranthene-type benzenoid hydrocarbons [PDF]

Journal of the Serbian Chemical Society, 2009
A fluoranthene-type benzenoid hydrocarbon (FTBH) is a polycyclic conjugated system obtained by joining two ordinary benzenoid hydrocarbons so as to form a five-membered ring.
IVAN GUTMAN, JELENA ĐURĐEVIĆ
doaj  

Degrees of projections of rank loci [PDF]

, 2014
We provide formulas for the degrees of the projections of the locus of square matrices with given rank from linear spaces spanned by a choice of matrix entries.
Aluffi, Paolo
core   +1 more source

The optical spectrum of a large isolated polycyclic aromatic hydrocarbon: hexa-peri-hexabenzocoronene, C42H18

, 2008
The first optical spectrum of an isolated polycyclic aromatic hydrocarbon large enough to survive the photophysical conditions of the interstellar medium is reported.
Damian L. Kokkin, Goto, Gregory F. Metha, Jenniskens, Klaas Nauta, Le Page, Léger, Léger, Masakazu Nakajima, Nigel T. Lucas, Pino, Salama, Sloan, Thomas D. Varberg, Timothy W. Schmidt, Troy, Tyler P. Troy   +16 more
core   +1 more source

Decomposition theorem on matchable distributive lattices

, 2010
A distributive lattice structure ${\mathbf M}(G)$ has been established on the set of perfect matchings of a plane bipartite graph $G$. We call a lattice {\em matchable distributive lattice} (simply MDL) if it is isomorphic to such a distributive lattice.
Birkhoff, Cyvin, Cyvin, Felsner, Fournier, Grätzer, Khuller, Klavžar, Klavžar, Lam, Latapy, Lovász, Pretzel, Randić, Randić, Rémila, Rémila, Saldanha, Shiu, Stanley, Wilson, Zhang, Zhang, Zhang, Zhang, Zhang, Zhang, Zhang, Zhang, Zhang, Zhang, Zhang, Zhang, Zhang   +33 more
core   +1 more source

Distances in benzenoid systems: Further developments

Discrete Mathematics, 1998
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Chepoi, Victor, Klavžar, Sandi
openaire   +2 more sources

A new and facile synthetic approach to substituted 2-thioxoquinazolin-4-ones by the annulation of a pyrimidine derivative

Beilstein Journal of Organic Chemistry, 2010
A new and facile synthesis of 2-thioxoquinazolin-4-ones by introducing a benzenoid system in the pyrimidine moiety by reacting ethoxymethylene derivatives of 1,3-diarylthiobarbituric acids (DTBA) with active methylene compounds, such as malononitrile and
Nimalini D. Moirangthem, Warjeet S. Laitonjam   +1 more
doaj   +1 more source

Topological mechanochemistry of graphene

, 2013
In view of a formal topology, two common terms, namely, connectivity and adjacency, determine the quality of C-C bonds of sp2 nanocarbons. The feature is the most sensitive point of the inherent topology of the species so that such external action as ...
A Hemmasizadeh, A Sakhaee-Pour, A Tobolski, AWK Jong de, C Jin, C Li, EA Nikitina, EF Sheka, EF Sheka, EF Sheka, EF Sheka, EF Sheka, EF Sheka, EF Sheka, F Guo, F Liu, G Lier Van, GMJ Schmidt, H Bu, J-L Tsai, JJP Stewart, K Hashemnia, K Kudin, K Tashiro, LR MacGillivray, M Hasegawa, M Topsakal, MJS Dewar, MM Shokrieh, NA Popova, RB Woodward, RE Merrifield, V Enkelmann, VD Khavryutchenko, VV Boldyrev, X Wei, Y Gao, Y Guo   +37 more
core   +1 more source

Polyaniline coated micro-capillaries for continuous flow analysis of aqueous solutions [PDF]

, 2013
The inner walls of fused silica micro-capillaries were successfully coated with polyaniline nanofibres using the “grafting” approach. The optical response of polyaniline coatings was evaluated during the subsequent redoping–dedoping processes with ...
Asijati, Barta, Bartonek, Berna, Berrada, Blighe, Borecki, Castrellon-Uribe, Chen, Chiang, Crowley, de Oliveira, Dermot Diamond, Epstein, Fay, Fernando Benito-Lopez, Florea, Florea, Furukawa, Genies, He, Ho, Huang, Huang, Huang, Hugotlegoff, Kebiche, Kuswandi, Lapresta-Fernandez, Larisa Florea, Laska, Lechuga, Lindfors, Liu, Manigandan, Mazeikiene, McCurley, Mehta, Morais, O’Hare, Perez-Palacios, Pulido-Tofino, Sequeira, Stamenov, Taurozzi, Valcarcel, Virji, Wallace, Weigl   +48 more
core   +1 more source

Does Koopmans\u27 Paradigm for 1-Electron Oxidation Always Hold? Breakdown of IP/Eox Relationship for p-Hydroquinone Ethers and the Role of Methoxy Group Rotation [PDF]

, 2015
Koopmans’ paradigm states that electron loss occurs from HOMO, thus forming the basis for the observed linear relationships between HOMO/IP, HOMO/Eox, and IP/Eox.
Boddeda, Anitha, Lindeman, Sergey, Rathore, Rajendra, Talipov, Marat R.   +3 more
core   +3 more sources