To provide insight into the nature of active sites on these supported B2O3catalysts,11B solid state nuclear magnetic resonance (NMR) was used. Two boron oxide species with chemical shifts centered at 67.9 and 57.1 ppm were observed for these samples (using NaBH4as the reference compound, NMR...
SCIENTIFIC REPORTS | 4 : 7328 | DOI: 10.1038/srep07328 2 www.nature.com/scientificreports Figure 2 | The anisotropic giant magnetoresistance of NbSb2. (a) A Kohler plot using MR~F½H=rð0Þ^H1:8 for NbSb2 with the current parallel to the b-axis and the magnetic field ...
Herein, the spin-orbit coupling calculation was executed due to the magnetic Ni atoms, and the magnetic moments of the Ni and Ti atoms were 0.64 μB and 0.08 μB, respectively. The total magnetic moment of the unit cell was 0.66 μB at P = 0 GPa, and the magnetic moments varied ...
The nuclear magnetic resonance spectra of porphyrins. Part VIII. The 13C nuclear magnetic resonance spectra of some porphyrins and metalloporphyrins. J. Chem. Soc. Perkin Trans. 1974, 2, 627–634. 27. Mrinalini, G.; Walawalkar, M.; Krisjnan, V. Structure of a Non-Mesogen Porphyrin, 5...
method /'meθəd/ n. bored /'bɒ:d/ adj. embarrassed /im'bærəst/ adj. attitude /'ætitju:d/ n. behaviour /bi'heivjə/ n. previous /'pri:viəs/ adj. description /di'skripʃən/ n. amazed /ə'meizd/ adj. embarra...
当然,因为本征难度,真正获得广泛认可的 QSL 并不多,倒是原本为了追逐 QSL 的理论工作预言了阻挫磁性下的诸多新量子态 (大多具有反铁磁背景),例如:多偶极序 (multipolar order)、价键晶体态 (valence bond crystal, VBC)、价键玻璃态 (valence bond glass, VBG) 等。不...
Proton nuclear magnetic resonance (1H NMR) spectra were recorded using a Bruker AVANCE 400 MHz 1H NMR spectrometer. Optical density for cultured bacteria (MSSA and MRSA) were determined using LEDETECT 96 from LABExim products, and colony count was done using a plate-count system coupled to a ...
Forces are typically on the order of a few piconewtons. Due to their simple architecture, magnetic tweezers are one of the most popular and widespread biophysical techniques [27]. They were first used to handle a single DNA molecule and measure its elasticity [28] and response to to...
A class of intrinsic magnetic TIs were discovered when Mn was added to Bi and Te (or Se) during crystal growth. The addition of sufficient Mn results in the formation septuple layers (SLs), instead of the well-known quintuple layer (QL) structure of of tMhenBnio2nT-em410ag(onreM...
32. Another IR peak at 542 cm−1may be attributed to Bi–O and Bi–O–Bi stretching vibrations of [BiO6] octahedral structural units and/or bending vibration of the V–O–V bond33,34. The BiO3polyhedra vibration band does not show in the IR absorption35. Therefore, the bismuth ...