Composite phospholipid-calcium carbonate microparticles: Influence of anionic phospholipids on the crystallization of calcium carbonate

Article Abstract:

The synthesis and characterization of calcium carbonate microparticles by reaction of calcium chloride and ammonium bicarbonate in the presence of negatively charged phospholipids is reported. Negatively charged phospolipids influence the crystal morphology of calcium carbonate and induce the formation of thermodynamically less stable veterite polymorph as opposed to calcite polymorph.

Calcium Carbonate, Electric properties, Phospholipids, Chemical synthesis

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Electronic properties of neutral dyes in the channels of zeolite L: A combined spectroscopic and quantum chemical study

Article Abstract:

The absorption and emission spectra in solution and dye/zeolite L are reported where three low molecular weight model compounds for poly(phenylene-ethynylene)s are inserted into the channels of zeolite L by using gas phase insertion. During the process two compounds show emission properties in zeiolite L comparable to that in solution.

Zeolites, Analysis, Spectra, Quantum chemistry, Chemical properties, Atomic properties, Emission spectra

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