Taishan Wang

Chrysanthemum-like α-FeOOH microspheres produced by a simple green method and their outstanding ability in heavy metal ion removal

Chrysanthemum-like α-FeOOH was synthesized via an environment-friendly H2O/ethylene glycol (EG) cooperating-mediated method. Based on detailed characterizations of the as-obtained hierarchical α-FeOOH nanostructure, the assembly process and possible formation mechanism were clarified. The as-obtained α-FeOOH nanomaterial exhibits a high adsorption performance in water treatment.

Site‐Selective Fabrication of Two‐Dimensional Fullerene Arrays by Using a Supramolecular Template at the Liquid‐Solid Interface

have been successfully used to direct theformation of ordered fullerene arrays. In this way theinterfullerene distance and symmetry of the arrangementaresolelydeterminedbythemoleculartemplateandcanbechanged by adjusting its structure. More importantly, inter-actions between fullerenes can also be modified with thisstrategy.Wehavedesignedandsynthesizedatetraacidicazoben-zene molecule NN4A (Figure1a) that exclusively formsKagomopennetworkswithtwotypesofcavitiesthathavedifferent size and symmetry at the liquid–solid interface.These cavities are capable of accommodating fullerenemolecules as guest species. Herein, we examine the siteselectivityofthenetworksfordifferentfullerenes,afeaturewhichhasnotbeenobservedforothersystemsatliquid–solidinterfaces.Azobenzenederivativesaretypicalphotochromiccompoundsthathaveawiderangeofpotentialapplications,including for optical switching, holographic storage, lightharvesting, long-term energy storage, and nonlinear opticalmaterials.

Planar Quinary Cluster inside a Fullerene Cage: Synthesis and Structural Characterizations of Sc3NC@C80-Ih

The endohedral fullerene Sc(3)NC@C(80)-I(h) has been synthesized and characterized; it has an unprecedented planar quinary cluster in a fullerene cage. It is also the first chemical compound in which the presence of an unprecedented (NC)(3-) trianion has been disclosed. The fascinating intramolecular dynamics in Sc(3)NC@C(80)-I(h) enables the whole molecule to display high polarity and promising ferroelectricity. This finding inspires the possibility that such a planar quinary cluster may be useful in constructing many other endohedral fullerenes.

Russian-Doll-Type Metal Carbide Endofullerene: Synthesis, Isolation, and Characterization of Sc4C2@C80

For the first time, we have produced the stable compound Sc(4)C(2)@C(80)-I(h) and characterized it as a metal carbide endofullerene by FTIR and Raman spectroscopies in combination with DFT calculations. Furthermore, DFT calculations have demonstrated that this molecule has a Russian-doll-type structure, C(2)@Sc(4)@C(80).

Removal of multifold heavy metal contaminations in drinking water by porous magnetic Fe2O3@AlO(OH) superstructure†

A kind of hierarchical porous magnetic Fe2O3@AlO(OH) superstructure nanomaterial was prepared by a facile method involving ethylene glycol as both cross linker and stabilizing agent. The resulting hierarchical material shows ultrafast adsorption rates and high adsorption capacities for removal of Pb(II), As(V) and Cr(VI) ions from aqueous solution.

Spin Divergence Induced by Exohedral Modification: ESR Study of Sc3C2@C80 Fulleropyrrolidine

973 Program [2006CB300402]; NSFC [20821003, 20702053]; Important National Science & Technology Specific Projects [2008ZX05013-004]; Chinese Academy of Sciences

Molecular magnetic switch for a metallofullerene

The endohedral fullerenes lead to well-protected internal species by the fullerene cages, and even highly reactive radicals can be stabilized. However, the manipulation of the magnetic properties of these radicals from outside remains challenging. Here we report a system of a paramagnetic metallofullerene Sc3C2@C80 connected to a nitroxide radical, to achieve the remote control of the magnetic properties of the metallofullerene. The remote nitroxide group serves as a magnetic switch for the electronic spin resonance (ESR) signals of Sc3C2@C80 via spin–spin interactions. Briefly, the nitroxide radical group can ‘switch off’ the ESR signals of the Sc3C2@C80 moiety. Moreover, the strength of spin–spin interactions between Sc3C2@C80 and the nitroxide group can be manipulated by changing the distance between these two spin centres. In addition, the ESR signals of the Sc3C2@C80 moiety can be switched on at low temperatures through weakened spin–lattice interactions.

Addition of Carbene to the Equator of C70 To Produce the Most Stable C71H2 Isomer: 2 aH‐2(12)a‐Homo(C70‐D5h(6))[5,6]fullerene

China by the 973 Program [2006CB300402]; NSFC [20821003]; NSF [CHE-0716718, 0701525]; US Environmental Protection Agency (EPA) [RD-83385601]; Royal Society

A highly efficient and tumor vascular-targeting therapeutic technique with size-expansible gadofullerene nanocrystals

It has long been a dream to achieve tumor targeting therapy that can efficiently reduce the toxicity and severe side effects of conventional antitumor chemotherapeutic agents. Taking advantage of the abnormalities of tumor vasculature, we demonstrate here a new powerful tumor vascular-targeting therapeutic technique for solid cancers that applies advanced nanotechnology to cut off the nutrient supply of tumor cells by physically destroying the abnormal tumor blood vessels. Water soluble magnetic Gd@C82 nanocrystals of the chosen sizes are deliberately designed with abilities to penetrate into the leaky tumor blood vessels. By triggering the radiofrequency induced phase transition of gadofullerene nanocrystals while extravasating the tumor blood vessel, the explosive structural change of nanoparticles generates a devastating impact on abnormal tumor blood vessels, resulting in a rapid and extensive ischemia necrosis and shrinkage of the tumors. This unprecedented target-specific physiotherapy is found to work perfectly for advanced and refractory solid tumors.中文摘要本文报道了一种利用金属富勒烯纳米晶体快速高效治疗肿瘤的新技术. 从生物学上肿瘤血管和正常血管在结构上存在显著差异这一特点着手, 利用材料学上金属富勒烯纳米晶体在吸收射频能量后发生相变, 伴随着体积剧烈膨胀的特性, 高选择性地摧毁肿瘤血管. 研究表明, 经过1小时治疗后, 肿瘤部位血流即可发生快速阻断, 治疗2~4小时后, 肿瘤组织逐步发生出血性坏死, 肿瘤塌陷体积缩小; 并且对于多种实体肿瘤均有显著疗效. 该技术是一种快速、广谱、特异性高、毒副作用小的新型肿瘤治疗技术, 是一种具有巨大发展潜力的肿瘤治疗技术.

Susceptible electron spin adhering to an yttrium cluster inside an azafullerene C79N

Highly impressionable electron spin was found in endohedral azafullerene Y(2)@C(79)N at low temperature or upon exohedral chemical modification. These external stimulations can be employed to manipulate the spin-active Y(2)@C(79)N and can further be used in quantum processes for promising information-carrying spin systems and molecular devices.