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Nitrogen Halogen Derivatives of Dimethylsulfoximide and Dimethylsulfodiimide – Structure and Spectra The ir, nmr, and mass spectra of the N halogen compounds (CH3)2S(O)NBr ( 1 ), (CH3)2S(NH)NBr ( 2 ), (CH3)2S(NBr)2 ( 3 ), and (CH3)2S(NI)2 ( 4 ) are measured and briefly discussed. 3 crystallizes in the tetragonal space group P41212 with a = b = 740,8, c = 1282,0 pm and Z = 4.  相似文献   

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Gadoliniumhydridehalides – on the Absorption and Desorption of Hydrogen The phases described as LnX (Ln = Lanthanoid, X = Cl, Br) regularly contain hydrogen. All attempts to lose the hydrogen by heating GdXHnin sealed Ta ampoules under vacuum or in Pt capsules, these under oxygen, yield GdX3and Gd. The results hold for the corresponding phases of all other rare-earth metals. GdXHn has a range of homogeneity with an upper limit n = 1 and lower limits n = 0.72 (X = Cl)and n = 0.67 (X = Br). The metallic graphite-like phases reversibly react with hydrogen to form translucent GdXH2. A gap of miscibility is found between GdXH and GdXH2.  相似文献   

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The photocelectron spectra of nortricyclene (=tricyclo[2.2.1.02,6]heptane) and of triasterane (=tetracyclo[3.3.1.02,8.04,6]nonane) have been recorded and a tentative assignment of the bands has been put forward on the basis of MINDO/2 SCF calculations.  相似文献   

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