Quantum Dots of [Na Cs PbBr ] , Water Stable in Zeolite X, Luminesce Sharply in the Green.

Nanocrystals (NCs) of CsPbX , X = Cl, Br, or I, have excellent photoluminescent properties: high quantum yield, tunable emission wavelengths (410-700 nm), and narrow emission band widths. CsPbBr NCs show high promise as a green-emitting material for use in wide color gamut displays. CsPbBr NCs have, however, not been commercialized because they are sensitive to moisture and heat.

Preparation, crystal structure, and thermal stability of the cadmium sulfide nanoclusters Cd6S44+ and Cd2Na2S4+in the sodalite cavities of zeolite A (LTA).

The crystal structure and thermal stability of two cadmium sulfide nanoclusters prepared in zeolite A (LTA) have been studied by XPS, TGA, and single-crystal and powder XRD. The crystal structures of Cd2.4Na3.

Crystal structures of the NO and N2O4 sorption complexes of fully dehydrated fully Cd2+-exchanged zeolite X (FAU): coordination of neutral NO and N2O4 to Cd2+.

The structures of the nitric oxide and dinitrogen tetroxide sorption complexes of dehydrated fully Cd2+-exchanged zeolite X (FAU) have been determined using single-crystal X-ray diffraction in the cubic space group Fdm at 21(1) degrees C. Ion exchange was accomplished by allowing an aqueous stream 0.05 M in Cd2+ to flow past each crystal for 5 days.

Crystal structure of an ethylene sorption complex of fully vacuum-dehydrated fully Ag+-exchanged zeolite X (FAU). Silver atoms have reduced ethylene to give CH2 2- carbanions at framework oxide vacancies.

The crystal structure of an ethylene sorption complex of fully vacuum-dehydrated fully Ag(+)-exchanged zeolite X (FAU), a = 24.865(2) A, has been determined by single-crystal X-ray diffraction techniques in the cubic space group Fd at 21 degrees C. It is very different from the ethylene complex of Ag(92)-X that had been dehydrated at 400 degrees C in flowing oxygen, as were the two dehydrated structures.

Crystal structure of a methylamine sorption complex of fully dehydrated fully Ca2+ -exchanged zeolite X, |Ca46(CH3NH2)16|[Si100Al92O384]-FAU.

The structure of a methylamine sorption complex of fully dehydrated fully Ca2+-exchanged zeolite X, |Ca46(CH3NH2)16|[Si100Al92O384]-FAU, has been determined in the cubic space group Fd3 at 21(1) degrees C (a = 24.994(4) angstroms) by single-crystal X-ray diffraction techniques. The crystal was prepared by ion exchange in a flowing stream of 0.