The use of pyridine-2-amidoxime (pyaoxH2) in Ni chemistry has provided access to a dodecanuclear complex and a hexadecanuclear Ni cluster, namely [Ni12(pyaox)6(pyaoxH)6(MeOH)2Cl2]Cl4·5MeOH (1·5MeOH) and [Ni16(pyaox)8(pyaoxH)8(MeOH)4](SO4)4·10H2O·26MeOH (2·10H2O·26MeOH). Complex 1·5MeOH was isolated by the reaction of NiCl2·6H2O, pyaoxH2 and NaOMe in a 1 : 1 : 2 molar ratio in MeOH in 60% yield....

Previous work introduced transition-based algorithms to form a unified architecture of parsing rhetorical structures (including span, nuclearity and relation), but did not achieve satisfactory performance. In this paper, we propose that transition-based model is more appropriate for parsing the naked discourse tree (i.e., identifying span and nuclearity) due to data sparsity. At the same time, ...

Understanding the structural dynamics of a catalyst under reaction conditions is challenging but crucial regarding design. Here, by combination in situ/operando characterization and first-principles modelling, we show that supported rhodium (Rh) catalysts undergo restructuring at atomic scale response to carbon monoxide (CO), gaseous product formed during steam reforming methane. Despite transf...

The structural determination of ultrasmall clusters remains a challenge due to difficulties in crystallisation. Often the atomically precise undergo change under influence environment. X-ray absorption spectroscopy (XAS) can be an attractive tool study electronic and geometric properties such deposited onto various supports situ conditions. Herein, [Au6(dppp)4](NO3)2, [Au9(PPh3)8](NO3)3, [Au13(...

Nanostructured catalysts incorporating supported metal atoms or small clusters of defined size and chemical composition attract considerable attention because their potential to maximize resource efficiency. When optimally assembled, all the nuclei can participate in catalytic cycle with properties tailored deliver high specific activity stable performance. Over past decade, both number diversi...

In this paper, we first prove the metric approximation property for weighted mixed-norm L (p1,...,pn) w spaces. Using Gabor frame representation, this implies that the same property holds in weighted modulation and Wiener amalgam spaces. As a consequence, Grothendieck’s theory becomes applicable, and we give criteria for nuclearity and r-nuclearity for operators acting on these spaces as well a...