In this work, a new topological approach based on simple matrix algebra is introduced to explore substituent effects at the level of atomic additivity in the absence of significant resonance contributions. In the framework ...

A highly promising approach to the improvement of the properties of bituminous compositions for road building (BCRB) is introduction of surfactants that increase the strength of the adhesive bond between bitumen and the ...

© 2019 Elsevier Inc. Novel ammonium and betaine derivatives of p-tert-butylthiacalix[4]arene in cone and 1,3-alternate conformation were synthesized with high yields for the first time. The obtained compounds form in water ...