منابع مشابه
Ammonium ytterbium(III) diphosphate(V)
The title compound, NH(4)YbP(2)O(7), crystallizes in the KAlP(2)O(7) structure type and consists of distorted YbO(6) octa-hedra and bent P(2)O(7) (4-) diphosphate units forming together a three-dimensional network. There are channels in the structure running along the c axis, where the NH(4) (+) cations are located. They are connected via N-H⋯O hydrogen bonds to the terminal O atoms of the diph...
متن کاملCrystal structures of two ytterbium(III) complexes comprising alkynylamidinate ligands
Two ytterbium(III) complexes comprising alkynylamidinate ligands, namely bis-(η5-cyclo-penta-dien-yl)(3-cyclo-propyl-N,N'-diiso-propyl-propynamidinato-κ2N,N')ytterbium(III), [Yb(C5H5)2(C12H19N2)] or Cp2Yb[( i Pr2N)2C-C≡C-c-C3H5] (1) and tris-(3-phenyl-N,N'-di-cyclo-hexyl-propynamidinato-κ2N,N')ytterbium(III), [Yb(C21H27N2)3] or Yb[(CyN)2C-C≡C-Ph]3 (Cy = cyclo-hex-yl) (2) have been synthesized a...
متن کاملA novel chemiluminescence from the reaction of singlet oxygen with β-diketonates of europium(III), neodymium(III) and ytterbium(III).
Decomposition of 1,4-dimethylnaphthalene endoperoxide, which is the source of singlet oxygen, in the presence of β-diketonates of europium(III), neodymium(III) and ytterbium(III) is accompanied by bright chemiluminescence (CL) in visible and near infra-red spectral region due to characteristic emission from the lanthanides at λmax = 615 and 710 nm ((5)D0→(7)F2 and (5)D0→(7)F4 transitions of Eu(...
متن کاملScandium(III) trifluoromethanesulfonate catalyzed aromatic nitration with inorganic nitrates and acetic anhydride.
The rare earth metal(III) trifluoromethanesulfonate (rare earth metal(III) triflate, RE(OTf)3) was found to be an efficient catalyst for aromatic nitration with carboxylic anhydride-inorganic nitrate as the nitrating agent. In the presence of a catalytic amount of RE(OTf)3, the nitration of substituted benzenes proceeded to afford the corresponding nitrobenzenes. Especially, scandium(III) trifl...
متن کاملIterations of ytterbium.
Although ytterbium was named by the Swiss chemist Jean de Marignac in 1878, his ‘element’ was subsequently split into two in 1905: ytterbium and lutetium. The atomic weight of the ‘new’ ytterbium was later published in 1907 — so when was ytterbium actually discovered? The story begins on 13 June 1726, more than 150 years before it first received its name. On that date an agreement was signed al...
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ژورنال
عنوان ژورنال: Journal of Synthetic Organic Chemistry, Japan
سال: 1998
ISSN: 0037-9980,1883-6526
DOI: 10.5059/yukigoseikyokaishi.56.71