A5029982228- nanoparticles nucleation surface interactions
- Crystallization and Solubility Studies
- Nonlinear Optical Materials Research
- Calcium Carbonate Crystallization and Inhibition
- Phase-change materials and chalcogenides
- Nonlinear Optical Materials Studies
- Geological Studies and Exploration
- Photonic Crystals and Applications
- X-ray Diffraction in Crystallography
- Liquid Crystal Research Advancements
- Chemical Synthesis and Reactions
New York University
2023-2025
Organic solvents host the synthesis of high-value crystals used as pharmaceuticals and optical devices, among other applications. A knowledge gap persists on how replacing hydrogen bonds polar attraction that dominate aqueous environments with weaker van der Waals forces affects growth mechanism, including its defining feature, whether grow classically or nonclassically. Here we demonstrate a rare dual mode etioporphyrin I crystals, enabled by liquid precursors associate crystal surfaces to...
Crystalline fibers of the hydrogen-bonded bis(guanidinium)naphthalene-1,5-disulfonate framework containing ethanol guest molecules, (G)2(1,5-NDS)⊃EtOH, twist as they grow when deposited from solution under conditions that favor low nucleation densities and high branching rates. Spherulites comprising helicoidal with a pitch 3.4 ± 0.5 μm display rhythmic concentric variations in interference colors between crossed polarizers. Tightly packed platelets systematically change orientations flat-on...
Abstract A great proportion of molecular crystals can be made to grow as twisted fibrils. Typically, this requires high crystallization driving forces that lead spherulitic textures. Here, it is shown how micron size channels fabricated from poly(dimethylsiloxane) (PDMS) serve collimate the circular polycrystalline growth fronts optically banded spherulites three compounds, coumarin, 2,5‐bis(3‐dodecyl‐2‐thienyl)‐thiazolo[5,4‐d]thiazole, and tetrathiafulvalene. The relationships between...
A previously unreported polymorph of 5,11-bis(triisopropylsilylethynyl)anthradithiophene (TIPS ADT), Form II, crystallizes from melt-processed TIPS ADT films blended with 16 ± 1 wt % medium density polyethylene (PE). ADT/PE blends that initially are crystallized the melt produce twisted crystals a metastable (Form IV, space group P1̅) brickwork packing motif distinct slipstack by solution-processed I, P21/c) at room temperature. When these were cooled to temperature and subsequently annealed...