261262
钪
powder, 99.9% trace rare earth metals basis
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经验公式（希尔记法）:
Sc
化学文摘社编号:
分子量:
44.96
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12141613
EC Number:
231-129-2
MDL number:
产品名称
钪, powder, 99.9% trace rare earth metals basis
InChI key
SIXSYDAISGFNSX-UHFFFAOYSA-N
InChI
1S/Sc
SMILES string
[Sc]
assay
99.9% trace rare earth metals basis
form
powder
resistivity
50.5 μΩ-cm, 0°C
bp
2836 °C (lit.)
mp
1540 °C (lit.)
density
2.99 g/mL at 25 °C (lit.)
Quality Level
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Application
用于不常见簇合物 Sc19Br28Z4（Z = Mn、Fe、Ru 或 Os）的固态合成。这些簇合物由于其结构和磁特性而倍受关注。
Wei Li et al.
Angewandte Chemie (International ed. in English), 51(34), 8644-8647 (2012-07-24)
Asymmetric expansion: A catalytic asymmetric ring-expansion reaction of the title compounds occurs in the presence of a Sc(OTf)(3) catalyst bearing an N,N'-dioxide-based ligand. Highly functionalized 2-quinolone derivatives containing a chiral C4-quaternary stereocenter were obtained in high yields and high levels
Vincent Tran et al.
Organic letters, 14(23), 6100-6103 (2012-11-23)
Treatment of ynol ether-tethered dialkyl acetals with catalytic quantities of scandium triflate in CH(3)CN gives rise to five-, six-, and seven-membered alkoxycycloalkene carboxylates in good to excellent yields. Tri- and tetrasubstituted carbocyclic and heterocyclic alkenes may be formed by this
Marek Pruszyński et al.
Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine, 70(6), 974-979 (2012-04-03)
The positron-emitting radionuclide (44)Sc with a half-life of 3.97 h and a β(+) branching of 94.3% is of potential interest for clinical PET. As so far it is available from a (44)Ti/(44)Sc generator in Mainz, where long-lived (44)Ti decays to
Nadine V Hanhan et al.
Organic letters, 14(9), 2218-2221 (2012-04-18)
The scandium(III)-catalyzed enantioselective Hosomi-Sakurai allylation of isatins with various substituted allylic silanes is described. A catalyst loading as low as 0.05 mol % is utilized at room temperature to afford the 3-allyl-3-hydroxy-2-oxindoles in excellent yields and enantioselectivity up to 99%
Subrata Kundu et al.
Journal of the American Chemical Society, 134(36), 14710-14713 (2012-08-30)
High-valent copper-nitrene intermediates have long been proposed to play a role in copper-catalyzed aziridination and amination reactions. However, such intermediates have eluded detection for decades, preventing the unambiguous assignments of mechanisms. Moreover, the electronic structure of the proposed copper-nitrene intermediates
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