Materials Literature
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The spin-crossover complex [Fe(LN5)(CN)2]·H2O (1, LN5 = 2,13-dimethyl-3,6,9-12,18-pentaazabicyclo[12.3.1]octadeca-1(18),2,12,14,16-pentaene), reported previously by Nelson et al. in 1986, was reinvestigated, and its structure determined by single crystal X-ray diffraction for the first time. The reaction between [Mn(I…
Three trinuclear Mn2Mo molecules based on the orbitally degenerate [Mo(CN)7](4-) anion were prepared, one of which is the first single-molecule magnet (SMM) based on heptacyanomolybdate. The blocking temperature and the energy barrier (U = 40.5 cm(-1)) are records for a cyanide-based SMM. Wide hysteresis loops and sha…
Bottlebrush polymers are highly branched macromolecules with potential applications in antifouling coatings, rheological modifiers, and drug delivery systems. However, the solution conformation of bottlebrush polymers has been studied in only a limited set of materials made primarily by grafting-from polymerization. H…
Possible ferromagnetism induced in otherwise nonmagnetic materials has been motivating intense research in complex oxide heterostructures. Here we show that a confined magnetism is realized at the interface between ${\mathrm{SrTiO}}_{3}$ and two insulating polar oxides, ${\mathrm{BiMnO}}_{3}$ and ${\mathrm{LaAlO}}_{3}…
High Resolution Image Download MS PowerPoint Slide Multilayered polymer particles with a wide range of properties can be precisely engineered via the layer-by-layer technique using a multitude of templates and materials. Such multilayered particles are emerging as a powerful platform for biomedical applications. In th…
Dynamically tuning the concentration and profile of ions and vacancies in transition metal oxides provides a route to control of new functionalities.
The effect of electron-withdrawing ligands on the energy barriers of Single-Molecule Magnets (SMMs) is investigated. By introducing highly electron-withdrawing atoms on targeted ligands, the energy barrier was significantly enhanced. The structural and magnetic properties of five novel SMMs based on a dinuclear {Dy2}…
To arrive at functional organic materials with optimal molecular organization, control over the aggregation process is a prerequisite. Often, however, multiple pathways are involved that compete for the same molecular building block, a phenomenon known as pathway complexity. As a result, the material—made from small m…
Quasicrystals are non-periodic solids that were discovered in 1982 by Dan Shechtman, Nobel Prize Laureate in Chemistry 2011. The underlying mathematics, known as the theory of aperiodic order, is the subject of this comprehensive multi-volume series. This first volume provides a graduate-level introduction to the many…
Recent experimental observations of the onset of calcium carbonate (CaCO3) mineralization suggest the emergence of a population of clusters that are stable rather than unstable as predicted by classical nucleation theory. This study uses molecular dynamics simulations to probe the structure, dynamics, and energetics o…
Second-harmonic generation from powders of a series of three aromatic intramolecular charge-transfer moieties of D3h symmetry is reported. One compound is shown to be active while its symmetric structure. precludes any molecular non-linear contribution of a vectorial nature such as usually prevails in polar paranitroa…
2.0μm emission properties of Ho<sup>3+</sup>-Yb<sup>3+</sup> co-doped tellurite oxy-halide glass exited by 980nm LD is reported. Mid-infrared transmittance property of glass was investigated by Fouriertransform infrared (FTIR) spectrometer. The Judd-Ofelt intensity parameters Ω<sub>t</sub>)<i>t=2,4,6)</i> , s…
The intrinsic viscosity [η] of dendronized linear macromolecules dissolved in thermodynamically good solvents depends both on chain length that is contour length L(c) of the backbone of the polymer and on the persistence length l(p). Investigating a set of samples of identical L(c) but differing in the generation numb…
Abstract The structural relations of (and between) late transition metal monoxides, MO, and monosulfates, MSO 4 , are analyzed. We show that all of these late transition metal oxides, as well as 4d and 5d metal sulfates, crystallize in distorted rock salt lattices and argue that the distortions are driven by collectiv…
Results of investigation of the effect of the cooling rate on the structure and mechanical properties of metal in plasma quenching are presented.
We determine strain-temperature phase diagrams that map the stability of ferroelectric ordering and domains in nanothin (1.6-20 nm) films of PbTiO${}_{3}$ using molecular dynamics based on a first-principles model Hamiltonian. The ferroelectric domain structure is shown to depend sensitively on the epitaxial strain an…
We report a simple but efficient method to fabricate versatile graphene nanonet (GNN)-devices. In this method, networks of V2O5 nanowires (NWs) were prepared in specific regions of single-layer graphene, and the graphene layer was selectively etched via a reactive ion etching method using the V2O5 NWs as a shadow mask…
With the aim of studying the interface magnetism, the onset of ferromagnetism and the onset of the transition to the superconducting state a series of [La0.7Sr0.3MnO3(n u.c.)/YBa2Cu3O7(2 u.c.)]20 (LSMO/YBCO) superlattices with nominally varying layer thickness of the LSMO from one to four unit cells (u.c.) was prepare…
The combinatorial method of quartz crystal microbalance coupled with spectroscopic ellipsometry can be used to follow the in situ synthesis of catalytically active palladium nanoparticles in polymer brushes in situ. By combining these two orthogonal techniques, it is possible to thoroughly characterize the thickness,…
The effect of hydrogen loading on the stability and mobility of vacancy-H complexes in aluminum is determined by applying DFT and the minimum-mode-following method. The binding energy per H-atom within a complex is found to range from -0.36 eV/atom to -0.34 eV/atom for an occupancy of, respectively, a single and eight…