Single Crystal Organic Nanoflowers

Abstract

Nano-flowers reported so far were mostly constituted of inorganic or hybrid materials. We have synthesized and crystallized a new organic compound, 1, 2-bis(tritylthio)ethane forming an organic nano-flower consisting of single crystalline petals. Crystal structure at nano and micro level indicates that π-π stacking interactions between aromatic systems is the principal factor governing molecular recognition and assembly. Single crystal X-ray Diffraction (S-XRD) supported by Selective Area Electron Diffraction (SAED) experiments indicate the single crystalline nature of the flower-like assembly even at the nanoscale. In order to fabricate the nanoflower as a potential stimulus responsive material; the ‘petals’ were coated with magnetite nanoparticles, verified by Energy-dispersive X-ray spectroscopic (EDX) analysis. Herein, we have further tested the potential utility of the hybrid material in water remediation as a nano-based adsorbent for removal of heavy metals like chromium.

Studying Catalytically Viable Single-Crystalline Metal Oxide Nanorods Using Synchrotron-Based Scanning Hard X-ray Microscopy

“…The perfectly aligned crystalline planes within individual nanorods of both BaWO 4 control and BaSrWO 4 solid-solution samples are consistent with their single-crystalline nature. This highly crystalline character of these nanorods was also corroborated by the discrete and well-defined spots, observed in their corresponding SAED patterns (Figure J,K) …”

“…This highly crystalline character of these nanorods was also corroborated by the discrete and well-defined spots, observed in their corresponding SAED patterns (Figure 2J,K). 29 By contrast, Mn-doping of the tungstate lattice yields a different set of characteristic signatures (Figure 2I,L). Specifically, the d-spacing associated with the (112) facet reduces from 0.331 to 0.321 nm, and this observation is coupled with the appearance of an additional (004) facet characterized by a d-spacing value of 0.313 nm.…”

Ultraviolet aging study on bitumen modified by a composite of clay and fumed silica nanoparticles

“…Furthermore, in order to investigate silica distribution, 0.1 wt.% zinc oxide was added to fumed silica NPs. Based on zinc energy dispersive X-ray spectrometry (EDS) mapping 34 , it was found that fumed silica NPs coated clay layers uniformly. In addition, zinc dispersion indicates that this technique of producing hydrothermal CS-NPs is suitable for modified homogenous bitumen blending.…”

Garland, Flower, and Petals via a Hierarchical Self-Assembly of Ursane-Type Triterpenoid Uvaol

“…Uvaol 1 containing two hydroxyl groups at the two ends of the molecule along with a 6-6-6-6-6 pentacyclic ursane-type hydrophobic backbone makes it a unique unsymmetrical bola amphiphile for the study of its self-assembly properties in several neat organic liquids and aqueous organic binary liquids. The self-assemblies and flowerlike porous superstructure from metal oxide nanocomposite and inorganic substances in different media have been reported. − But the self-assembly of garland and flowerlike porous architectures from triterpene-based amphiphiles and synthesized organic compounds is not common. ,, …”