Materials Literature
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A series of magnesium bis(amido-oxazolinate) complexes have been described. Reactions of six amido-oxazolinate ligand precursors, HNC(2)(Me)Oxa, HNC(2)(OMe)Oxa, HNC(2)(StBu)Oxa, HNPhOxa, HNPh(OMe)Oxa or HNPh(SMe)Oxa, with half molar equivalent of Mg(n)Bu(2) in hexane yield the magnesium bis(amido-oxazolinate) complexe…
Double-helical architectures obtained from achiral ligands and metal ions present supramolecular homochirality in the single -crystal state under constitutional self-sorting.
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Epoxy matrix composites reinforced with recycled cellulose fibre (RCF) were fabricated and characterized with respect to their flexural and impact properties. Reinforcement of the epoxy by RCF resulted in a significant increase in the strain at failure, fracture toughness and impact toughness but only a moderate incre…
Quantum chemical and ab initio thermodynamic calculations were used to investigate the mechanism of CO oxidation on Au/TiO(2) and the geometric and electronic character of active sites. We show that CO oxidation over Au/TiO(2) might proceed via a two site mechanism with oxygen adsorbing and dissociating at the Au/oxid…
Single-walled carbon nanotubes (SWCNTs) wrapped with cellulose have been successfully prepared by the treatment of SWCNTs with a cellulose solution in the ionic liquid 1-butyl-3-methylimidazolium bromide. The obtained SWCNT complex can be dispersed in water, forming a stable solution with excellent biocompatibility. I…
An amphiphilic platinum(II)-containing diblock copolymer, with pH- and solvent-responsive micellization properties that could induce drastic UV-vis and emission spectral changes via modulation of Pt...Pt and pi-pi stacking interactions, has been demonstrated in both aqueous and organic media.
Two C3 symmetric tris(TTF) derivatives, based on a central unit containing the rigid core 1,3,5-tricarbonyl-benzene substituted with three 3,3′-diamino-2,2′-bipyridines, have been synthesized by a convergent strategy. Single crystal X-ray analysis of the precursor 3′-[(ethylenedithio-tetrathiafulvalenyl)formylamino]-2…
We have fabricated novel, food-grade anisotropic ‘lumpy’ micro-rods with micro-particle inclusions using an in-shear flow solvent attrition technique. Various micro-particle inclusions have been used in shellac and ethyl cellulose micro-rods which include sporopollenin microcapsules, porous silicas, yeast cells, sodiu…
An orange-emitting, long-persistent phosphor, , was developed. Afterglow of this phosphor decays more slowly than that of the conventional red-emitting, long-persistent phosphor, . After 420 nm excitation, the afterglow luminance is initially lower, but, after 8 min, gets higher than luminance of . Long afterglow resu…
Recently, to improve the properties of wood plastic composite (WPC), incorporation of nanofiller has been considered. In this study, hybrid composite of polypropylene/wood flour/nanoclay with different concentrations of nanoclay and maleated polypropylene (MAPP) as compatibilizer were fabricated in an internal mixer.…
Mixed ligand Ln2Cu2 tetranuclear complexes, [{LnCu(L4)(L5)(NO3)2}2] (L4− is a Schiff base ligand derived from o-vanilate, L52− is a nitromethyl derivative of L4−; LnGd(4), Tb(5), and Dy(6)), were synthesized by reacting the corresponding dinuclear complexes [LnCu(o-vanilate)2(NO3)3] with ethylamine in a nitromethane s…
The optimum luminescence and its relevant applications of phosphors are always challenged by the generation of multicolour lights in a single solid with a single-wavelength excitation. In this work, we initiated the preparation of novel core-shell CaWO4 microspheres co-doped with Na+ and Ln3+ (Ln = Tb, Sm, Dy, Eu) and…
The reaction of fluorous imino-alcohols {ON(R1,R2)}H (R(1) = Me, Ph; R(2) = Ph, CH(2)Ph, cyclohexyl, piperidinyl) with Zn(N(SiMe(3))(2))(2) (1 or 0.5 equiv) systematically led to bis(ligand) complexes Zn{ON(R1,R2)}(2) (1-9), which were isolated in 84-88% yield. Imino-alcohols {ON(R1,R2)}H react selectively with ZnEt(2…
A new series of di-alpha-substituted zinc(ii) phthalocyanine derivatives have been prepared by mixed cyclisation of the corresponding 1,4-disubstituted phthalonitriles or naphthalonitriles with an excess of unsubstituted phthalonitrile in the presence of Zn(OAc)(2).2H(2)O and 1,8-diazabicyclo[5.4.0]undec-7-ene. Having…
The corrosion rates in the presence of nizoral (NZR), an antifungal drug, as mild steel corrosion inhibitor in 0.1 M H 2 SO 4 was measured by the weight loss method in the temperature range from 30 -50 o C. Results obtained revealed that NZR acts as an inhibitor for mild steel in sulphuric acid solution. Inhibition ef…
The molecular heterometallic [{Au(8)Ag(10)(C(2)Ph)(16)}{(PhC(2)Au)(2)PPh(2)(C(6)H(4))(3)PPh(2)}(2)](2+) aggregate of unprecedented topology was obtained and structurally characterized; this compound demonstrates unusually effective phosphorescence, which displays negligible oxygen quenching due to shielding of emissiv…
Frequency domain Fourier transform THz electron paramagnetic resonance (FD-FT THz-EPR) based on coherent synchrotron radiation (CSR) is presented as a novel tool to ascertain very large zero field splittings in transition metal ion complexes. A description of the FD-FT THz-EPR at the BESSY II storage ring providing CS…
The properties of a family of relaxor materials with nominal formula Ba6M3+Nb9O30 (M3+ = Ga3+, Sc3+ and In3+) with the tetragonal tungsten bronze (TTB) structure are reported. The dielectric curves are dramatically shifted (>200 K) to higher temperature with increasing M3+ cation size, in contrast to the opposite effe…
A biocompatible and water-soluble poly(amino acid) derivative, with a hydrophilic backbone and side chains facilitating linkage to the surfaces of nanoparticles was used to coat hydrophobic Fe3O4nanoparticles. Such nanoparticles, (4–11 nm), were coated by coordinate bonding and hydrophobic interactions with a hydrophi…