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2000 (1)
1999 (1)
1Author    G. C. Papavassiliou3, G.A M Ousdis3, C. P. Raptopouloub, A. TerzisbRequires cookie*
 Title    Some New Luminescent Compounds Based on 4-MethyIbenzylamine and Lead Halides  
 Abstract    Compounds of the general formula (CH3NH3)"_i(C H 3C6H4C H 2N H 3)2Pb"X3"+i, where X = I, Br, Cl and n= 1,2, 3,..., were prepared and characterized analytically and spectroscopically. Moreover, (CH3C6H4CH2NH3)2PbX4 and (C H ^ N H jX C ^ C e ^ C H z N H jh P b il? were charac­ terized by X-ray crystal structure analysis. Their optical absorption and photoluminescence spectra exhibit excitonic bands, even at room temperature. 
  Reference    Z. Naturforsch. 55b, 536—540 (2000); received March 6 2000 
  Published    2000 
  Keywords    Hybrides, Perovskites, Excitonic Spectra 
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 TEI-XML for    default:Reihe_B/55/ZNB-2000-55b-0536.pdf 
 Identifier    ZNB-2000-55b-0536 
 Volume    55 
2Author    G. C. Papavassilioua, G. A. Mousdisa, C. P. Raptopouloub, A. TerzisbRequires cookie*
 Title    Preparation and Characterization of [C6H5CH2 NH3]2PbI4, [C6H5CH2 CH2 SC(NH2 )2]3PbI5 and [C10H7CH2NH3]PbI3 Organic-Inorganic Hybrid Compounds  
 Abstract    The preparation, crystal structures, optical absorption spectra, and photoluminescence spectra of the title compounds are reported. The compounds were prepared in single crystal form. [CftHsCHiNH.^PbL consists of anionic perovskite sheets of corner-sharing Pbl6 octahedra, which alternate with the C ö H s C ^ N H ^ sheets. [ C ftH s C ^ C ^ S Q N H i^ b P b ls consists of zig-zag chains of anionic corner sharing Pbl6 octahedra separated by C6H5CH 2CH 2SC(NH2)2 cations. [CioH7CH 2N H 3]Pbl3 consists of twin chains of edge-sharing P b^ octahedra separated by C 10H7CH2NH3 cations. The compounds are thus low-dimensional systems. The excitonic spectra were observed in all cases, even at room temperature, and the possibility of organic-inorganic excitonic interactions is discussed. 
  Reference    Z. Naturforsch. 54b, 1405—1409 (1999); received July 7 1999 
  Published    1999 
  Keywords    Organic-Inorganic Hybrides, Perovskites, Low-Dimensional Compounds, Excitonic Spectra 
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 TEI-XML for    default:Reihe_B/54/ZNB-1999-54b-1405.pdf 
 Identifier    ZNB-1999-54b-1405 
 Volume    54