An uncommon butterfly-like tetranuclear copper(ii) cluster with the formula {[Cu(4)(μ(3)-OH)(2)(μ(4)-Cl)(H(2)O)(2)(L)(2)]·Cl(H(2)O)(7)}(n) (1) (H(2)L = 1,2-bis[3-(1,2,4-triazolyl)-4-amino-5-carboxylmethylthio]ethane) has been synthesized. Compound 1 exhibits interesting anion exchange characteristics, in which both guest and coordinated Cl(-) can be replaced by I(-) or NO(3)(-) in water. Furthe...

The processing, mechanical and chemical properties of poly(ether ester)s, prepared from pivalolactone (PVL), 1,4-butanediol (4G) and dimethyl terephthalate (DMT), were studied. The poly(ether ester)s could easily be processed by injection moulding, owing to their favourable rheological and thermal properties. The tensile response of a poly(ether ester) with a butylene terephthalate (4GT) conten...

A halogenmethylsulfonyl moiety is incorporated in numerous active herbicides and fungicides. The synthesis of tribromomethyl phenyl sulfone derivatives as novel potential pesticides is reported. The title sulfone was obtained by following three different synthetic routes, starting from 4-chlorothiophenol or 4-halogenphenyl methyl sulfone. Products of its subsequent nitration were subjected to t...

_______________________________________________________________________________________ A fracture mechanics approach has been used to investigate how the addition of high-temperature resistant thermoplastic modifiers can increase the fracture energy, Gc, of brittle cyanate-ester polymers. Tests were performed using adhesive joint specimens at -55, 21 and 150°C. The fracture energies of poly(et...

Pentiptycene-based mono(crown ether)s and tetracationic cyclobis(paraquat-p-phenylene) can form 1 : 1 stable complexes in solution and in the solid state, in which both of the components act as the host as well as the guest.

Constructing an interlayer between porous substrate and polyamide (PA) film is effective strategy to overcome the ubiquitous trade-off permeability selectivity, which are both important properties for nanofiltration performance. In this study, a poly(sodium 4-styrenesulfonate) (PSS) assisted interfacial synthesis method was proposed fabricate zeolitic imidazolate framework-8 (ZIF-8) PA micropor...