Results 61 to 70 of about 738 (133)

Partition of –electrons in rings of double linear hexagonal chains [PDF]

open access: yes, 2005
Two methods for assessing the π-electron content of a ring of a benzenoid hydrocarbon were recently proposed: one based on the averaging of the π-electron contents of the Kekulé structural formulas, and the other based on an analogous treatment of the ...
Arsić, Biljana   +3 more
core  

Some Extremal And Structural Problems In Graph Theory [PDF]

open access: yes, 2016
This work considers three main topics. In Chapter 2, we deal with König-Egerváry graphs. We will give two new characterizations of König-Egerváry graphs as well as prove a related lower bound for the independence number of a graph. In Chapter 3, we study
Short, Taylor Mitchell
core   +1 more source

Further study of eccentricity based indices for benzenoid hourglass network. [PDF]

open access: yesHeliyon, 2023
Iqbal H   +7 more
europepmc   +1 more source

ENCIRCLING CHAINS AROUND 4- AND 6-CLUSTERS IN FULLERENES [PDF]

open access: yes
Fullerenes are purely carbon molecules which can be represented by a 3-regular planar graph consisting of only hexagonal and (exactly 12) pentagonal faces.
Kimbrell, Hannah Melissa
core   +1 more source

Pierre Duhem’s philosophy and history of science [PDF]

open access: yes, 2017
LEITE (Fábio Rodrigo) – STOFFEL (Jean-François), Introduction (pp. 3-6). BARRA (Eduardo Salles de O.) – SANTOS (Ricardo Batista dos), Duhem’s analysis of Newtonian method and the logical priority of physics over metaphysics (pp. 7-19). BORDONI (Stefano),
Leite, Fábio Rodrigo   +1 more
core  

Nenad Trinajstić – Pioneer of Chemical Graph Theory [PDF]

open access: yes, 2004
We present a brief overview of many contributions of Nenad Trinajstić to Chemical Graph Theory, an important and fast developing branch of Theoretical Chemistry.
Milan Randić
core   +1 more source

Establishing carbon-carbon double bond position and configuration in unsaturated fatty acids by gas-phase infrared spectroscopy. [PDF]

open access: yesChem Sci, 2023
Kirschbaum C   +12 more
europepmc   +1 more source

A Planar Five-Membered Aromatic Ring Stabilized by Only Two π-Electrons. [PDF]

open access: yesAngew Chem Int Ed Engl, 2022
Kysliak O   +6 more
europepmc   +1 more source

Grammar-driven SMILES standardization with <i>TokenSMILES</i>. [PDF]

open access: yesChem Sci
Gonzalez-Ortiz LA   +7 more
europepmc   +1 more source

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