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867 research data, page 1 of 87

The Selective Preparation of an Aluminum Oxide and Its Isomeric C−H-Activated Hydroxide

An aluminum oxide [LAlO]2 (1) has been prepared by the oxidative addition of aluminum(I) monomer LAl (L = HC[(CMe)(NAr)]2, Ar = 2,6-iPr2C6H3) with molecular oxygen. The short Al−O bonds in Al2(μ-O)2 result in short Al···Al contacts and subsequent steric crowding of the Ar substituents from the two oriented L. 1 hydrolyzes to form [LAl(OH)]2(μ-O) (2). A C−H-activated aluminum hydroxide 4, an isomer of 1, however, is obtained by hydrolysis of the bulky aluminum amide 3 rather than by a conversi...

Synthetic Control of Pt···Pt Separation and Photophysics of Binuclear Platinum Complexes

A new series of luminescent μ-pyrazolate-bridged cyclometalated platinum binuclear complexes having the formula C∧NPt(μ-pz‘)2PtC∧N (C∧N = 2-(2,4-difluorophenyl)pyridyl, pz‘ = pyrazolate for 1, 3,5-dimethylpyrazolate for 2, 3-methyl-5-tert-butylpyrazolate for 3, and 3,5-bis(tert-butyl)pyrazolate for 4) have been synthesized and characterized. The two Pt(C∧N) moieties are bridged by two μ-pyrazolate ligands in an exo-bidentate fashion. A mononuclear complex with an isolated Pt center, C∧NPt(pz)...

Fractional optical vortex beam induced rotation of particles

S. H. Tao; X-C. Yuan; Lin, J; Peng, X.; Niu, H. B. (2005)
Publisher: Figshare
We experimentally demonstrate optical rotation and manipulation of microscopic particles by use of optical vortex beams with fractional topological charges, namely fractional optical vortex beams, which are coupled in an optical tweezers system. Like the vortex beams with integer topological charges, the fractional optical vortex beams are also capable of rotating particles induced by the transfer of orbital angular momentum. However, the unique radial opening (low-intensity gap) in the inten...

Electrically tunable lasers made from electro-optically active photonics band gap materials

Haiping Yu; Benjamin Y. Tang; Jianhui Li; Le Li (2005)
Publisher: Figshare
External cavity-free and electrically tunable laser made from photonics band gap (PBG) materials with electrically tunable stop band is reported. The tunable PBG materials are developed from a family of novel cholesteric liquid crystals (CLC) with electrically variable pitch that adopts a non-constant distribution in space across the CLC film. The CLC exhibits a distributed feedback cavity whose resonant frequency can be electrically varied over a spectral range wider than 300 nm. Under an op...

caudata: Cyzicidae): a new clam shrimp from Western Australia

Brian Timms (2005)
Publisher: Plazi.org taxonomic treatments database
This dataset contains the digitized treatments in Plazi based on the original journal article Olesen, Jørgen, Timms, Brian (2005): caudata: Cyzicidae): a new clam shrimp from Western Australia. Zootaxa 824: 1-8, DOI: 10.5281/zenodo.170643

Sea-bed photographs (benthos) along profile PS56/125-1

Gutt, Julian; Teixidó, Núria (2005)
Publisher: PANGAEA - Data Publisher for Earth & Environmental Science