The reactions of ten metastable immonium ions of general structure R'R2C=NH+C4H9 (R' = H, R2 = CH, , C2H, ; R' = R2 = CH,) are reported and discussed. Elimination of C4H, is usually the dominant fragmentation pathway. This process gives rise to a Gaussian metastable peak; it is interpreted in terms
Structural and electronic properties of the natural quantum-well system (C6H5CH2CH2NH3)2SnI4
β Scribed by G.C. Papavassiliou; I.B. Koutselas; A. Terzis; M.-H. Whangbo
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 324 KB
- Volume
- 91
- Category
- Article
- ISSN
- 0038-1098
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
The salt N-benzyl piperidinium dihydrogenmonophosphate (N-BPP) is orthorhombic P2 1 2 1 2 1 with the following unit cell dimensions: a β«Ψβ¬ 6.044(1) A > , b β«Ψβ¬ 9.038(1) A > , c β«Ψβ¬ 25.126(3) A > , D m β«Ψβ¬ 1.302 Mg m Ψ3 , D x β«Ψβ¬ 1.322 Mg m Ψ3 , β«Ψβ¬ 0.21 mm Ψ1 , F(000) β«Ψβ¬ 584; T β«Ψβ¬ 298 K; R β«Ψβ¬ 0.0
Combining concentrated hydriodic acid solutions of tin(II) iodide and formamidine acetate in an inert atmosphere results in the precipitation of a new conducting organic-inorganic compound, NH 2 CHβ«Ψβ¬NH 2 SnI 3 , which at room temperature adopts a cubic perovskite structure. The lattice constant for