We report a two-step approach to obtain synthetically versatile bicyclo[1.1.1]pentane (BCP) derivatives using Grignard reagents. This method allows the incorporation of BCP units in tetrapyrrolic macrocycles and synthesis new class calix[4]pyrrole analogues by replacing two bridging methylene groups with units. In addition, doubly N-confused system was also formed presence electron-withdrawing ...

The purpose of this research is to investigate a zeotropic working fluid mixture in terms of its performance in an organic Rankine cycle (ORC) and the heat transfer characteristics in an air-cooled condenser (ACC). The motivation of this study is that it is well known that the use of a mixture improves the efficiency of an ORC system. However, the behaviour of the mixture in the condensers is n...

gamma and (b) alpha cage in zeolite ZK5. 2. Methodology The structure model of the zeolite H-ZK5 was obtained by an optimization using the semi-empirical method MNDO, since no experimental structure data were available. Moreover, the influence of the electric field of the proton has been examined. Two clusters were selected from the optimized zeolite structure, the neutral (Si2O7H6) and the aci...

We examined the role of chemical signals in sex attraction of pear psylla, Cacopsylla pyricola (Förster), assessing the response of summerform male and female psyllids to maleand female-produced volatile chemicals. Male psyllids were attracted to odors from live females and pentane extracts of females. Extracts of females were as attractive to males as live females, suggesting that the female-p...

In the title compound, C20H18BrN3S, the cyclo-pentane ring adopts a half-chair conformation. The 4-bromo-phenyl and phenyl rings make dihedral angles of 34.6 (1) and 68.52 (6)°, respectively, with the di-hydro-thia-zole ring. In the crystal, the mol-ecules pack in sheets approximately parallel to (101) which are formed by weak C-H⋯Br inter-actions.