Results 81 to 90 of about 3,914 (183)
Silver(I) Complexation of (Poly)aromatic Ligands. Structural Criteria for Depth Penetration into \u3cem\u3ecis\u3c/em\u3e-Stilbenoid Cavities [PDF]
, 2000 Silver(I) complexes with aromatic donors are thoroughly analyzed (with aid of the Cambridge Crystallographic Database) to identify the basic structural factors inherent to the bonding of an arene ligand.
Kochi, Jay K. +2 more
core +1 more source
Some Benzenoid Hydrocarbons with Extremal Properties
Zeitschrift für Naturforschung A, 1988 Abstract Benzenoid systems and their ⊿ values are studied. Here ⊿ is the absolute magnitude of the difference between the numbers of black and white vertices. The systems with maximum ⊿ at a given h (number of hexagons) are treated in particular. TP benzenoids are defined as consisting of fused triangulenes and phenalenes only.
J. Brunvoll +3 more
openaire +1 more source
Chemical applicability and computation of K-Banhatti indices for benzenoid hydrocarbons and triazine-based covalent organic frameworks. [PDF]
Sci Rep, 2023 Shanmukha MC +5 more
europepmc +1 more source
A simple formula for calculating resonance energy of benzenoid hydrocarbons
Macedonian Journal of Chemistry and Chemical Engineering, 2006 The topological resonance energy (TRE) of a catacondensed benzenoid hydrocarbon with h six-membered rings and K Kekulé structures can be calculated by the (approximate) formula TRE = Ah + B + CK e–Dh, where A = 0.136, B = –0.223, C = 0.281, and D = 0.454.
Ivan Gutman, Slavko Slavko Radenković
doaj
Resonance in Large Benzenoid Hydrocarbons
Croatica Chemica Acta, 1996 Pi-sextet resonance between Kekulé valence structures of benzenoid hydrocarbons are depicted by benzenoid resonance graphs. We outline the construction of the resonance graphs for families of benzenoid compounds. For the compounds considered the resonance graphs are built from fused ra-dimensional cubes.
Randić, Milan +3 more
openaire +1 more source
Computational and Mathematical MethodsThe generalized Mycielskian graphs are known for their advantageous properties employed in interconnection networks in parallel computing to provide efficient and optimized network solutions. This paper focuses on investigating the bounds and computation
Pooja Danushri Namidass +1 more
doaj +1 more source
ChemistryEuropeThe rectangular cyclobutadiene (CBD, C4H4) is a unique moiety for building nonbenzenoid polycyclic conjugated hydrocarbons with interesting electron‐accepting properties.
Yikun Zhu +4 more
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Ain Shams Engineering JournalQuantitative structure-property relationship (QSPR) modeling employs contemporary mathematical tools to predict physicochemical, thermodynamic and biological properties of compounds from their chemical structures.
Sakander Hayat +3 more
doaj +1 more source
Modeling the Physicochemical Characteristics of Benzene Compounds Utilizing Zagreb Eta Indices
Journal of ChemistryThis study presents the Zagreb Eta indices, a novel family of degree-based topological descriptors defined through multiplicative combinations of neighboring vertex degrees, designed to model the physicochemical properties of benzenoid hydrocarbons ...
İdris Çiftçi
doaj +1 more source
Polansky's benzenoid character and the electron content of rings of benzenoid hydrocarbons
, 2005 Summary: In 2004 Balaban and Randić put forward a method to assess the \(\pi\)-electron content EC of rings of benzoid hydrocarbins. Much earlier, in the 1960s, Oskar Polansky conceived and elaborated the concept of benzenoid character \(\rho\) of the same rings.
Gutman, Ivan +3 more
openaire +2 more sources