Multiple Stimuli-Responsive Luminescent Chiral Hybrid Antimony Chlorides for Anti-Counterfeiting and Encryption Applications.

Stimuli-responsive circularly polarized luminescence (CPL) materials are ideal for information anti-countering applications, but the best-performing materials have not yet been identified. This work presents enantiomorphic hybrid antimony halides R-(C H NO) SbCl (1) and S-(C H NO) SbCl (2) showing mirror-imaged CPL activity with a dissymmetry factor of 1.2×10 .

Cr(VI) removal via anion exchange on a silver-triazolate MOF.

Gram-scale synthesis of a silver-triazolato framework - {[Ag(tz)](NO)·6HO} (1-NO; tz=3,5-diphenyl-1,2,4-triazolate) - has been achieved, enabling the systematic investigation of its anion-exchange properties. Our experimental results show that the anion-exchange pattern of 1-NO conforms to the so-called Hofmeister bias, which has been correlated to the hydrophobic nature of the MOF pores, and can be understood by considering the difference between the hydration energies of the exchanging anions. Furthermore, 1-NO displays a fast, efficient, and reversible adsorption of HCrO (via anion-exchange) from Cr(VI)-containing aqueous solution (Q=37.

[Elemental analysis and infrared spectra of suspended substance in the effluent from eco-biofilter].

The suspended substance (SS) in the effluent from eco-biofilters was examined by elemental analysis and infrared spectroscopy. The inorganic components of SS in D1 and S1 are more than those in D2 and S2, respectively. The IR spectra of SS is mainly composed of the adsorption of carbohydrates, protein, etc.

[Comparison of infrared spectra of native and esterified beer yeast].

The native beer yeast and esterified beer yeast were examined by infrared spectroscopy. The IR spectrum of beer yeast is mainly composed of the adsorption of carbohydrates, protein, etc. The dominating bands near 1652, 1532 and 1240 cm(-1) were assigned to amide I, amide II and amide III, and the characteristic IR absorption of protein could be one of the significant components of cell walls.