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'Synthesis' in keywords Facet   Publication Year 1999  [X]
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1999[X]
1Author    Joachim Pethe, Joachim SträhleRequires cookie*
 Title    Synthese und Kristallstruktur von [Au(AuNCO)(AuPPh3)8]Cl Synthesis and Crystal Structure of [Au(AuNCO)(AuPPh3)8]Cl  
 Abstract    The photolysis of Cr(CO)6 and Ph3PAuN3 (1:2) in thf yields the unstable cluster cation [(Ph3PAu)5Cr(CO)4]+ that slowly decomposes to form the new homometallic gold cluster [Au(AuNCO)(AuPPh3)8]Cl. The cluster compound crystallizes in form of red needles in the tetragonal space group 14 with a = 2214.1(3), c = 1408.9(2) pm, and Z = 2. The inner skeleton of the cluster with the symmetry C4 consists of a centered square antiprism of nine Au atoms with the square faces of the antiprism being bridged by the AuNCO group, and a C P anion, respectively. The shortest Au-Au distances exist between the central and the 8+1 peripheral Au atoms ranging between 263.5(1) and 270.6(3) pm, the four Au-Cl distances are 280(1) pm. 
  Reference    Z. Naturforsch. 54b, 381—384 (1999); eingegangen am 3.Dezember 1998 
  Published    1999 
  Keywords    Gold Cluster, Synthesis, Crystal Structure 
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 TEI-XML for    default:Reihe_B/54/ZNB-1999-54b-0381.pdf 
 Identifier    ZNB-1999-54b-0381 
 Volume    54 
2Author    Axel Lifferth3, IsabelB. Ahnera, Ut Helm, Lackner, M. Artina SchäferbRequires cookie*
 Title    Synthese und Struktur von Prolinring-modifizierten Actinomycinen des X-Typs Synthesis and Structure of Proline Ring Modified Actinomycins of the X-Type  
 Abstract    The first total synthesis o f actinomycins containing L-4-hydroxyproline (1) and the separa­ tion and NM R spectroscopic assignment o f the regioisomers X (V* and iso-X0/i (lc, le) are described. The synthetic X 0/j proves, that the oxidized proline ring of the natural actinomycins 
  Reference    Z. Naturforsch. 54b, 681—6 (1999); eingegangen am 15. Januar 1999 
  Published    1999 
  Keywords    Antibiotics, Actinomycins, Synthesis, Crystal Structure, NM R Data 
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 TEI-XML for    default:Reihe_B/54/ZNB-1999-54b-0681.pdf 
 Identifier    ZNB-1999-54b-0681 
 Volume    54 
3Author    Michael Becker, Martin Jansen, Martin Jansen Heisenbergstraße, D-70596, Stuttgart Sonderdruckanforderungen, Prof Dr, Martin JansenRequires cookie*
 Title    Darstellung und Charakterisierung von Rubidiumhydrogencyanamid Synthesis and Characterization of Rubidium Hydrogen Cyanamide  
 Abstract    The synthesis of RbHCN2 was carried out by reaction of cyanamide with rubidium amide in liquid ammonia. The crystal structure has been determinedo by x-ray powder methods (orthor-hombic, P2,2,2,, a = 7.299(1), b = 9.435(1), c = 9.420(1) Ä; Z = 8). The anion is slightly bent (174°) and exhibits two different bond lengths (C-N: 1.17, HN-C: 1.31 A). 
  Reference    Z. Naturforsch. 54b, 1375—1378 (1999); eingegangen am 26. Juli 1999 
  Published    1999 
  Keywords    Rubidium Hydrogen Cyanamide, Synthesis, Crystal Structure, IR Data 
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 TEI-XML for    default:Reihe_B/54/ZNB-1999-54b-1375.pdf 
 Identifier    ZNB-1999-54b-1375 
 Volume    54 
4Author    E. N. Kirillova, A. A. Trifonova, S. E. Nefedovb, I. L. Eremenkob, F. T. Edelmannc, M. N. Bochkarev3, J.G A RazuvaevRequires cookie*
 Title      
 Abstract    The interaction of NdCh with lithium metal in THF in the presence of naphthalene produces a mixture of naphthalene complexes of di-and trivalent neodymium chloride of an aggregate com­ 
  Reference    Z. Naturforsch. 54b, 1379—1384 (1999); received March 3 1999 
  Published    1999 
  Keywords    Neodymium, Divalent Oxidation State, Synthesis, Structure, Phenoxide 
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 TEI-XML for    default:Reihe_B/54/ZNB-1999-54b-1379.pdf 
 Identifier    ZNB-1999-54b-1379 
 Volume    54 
5Author    Barbara Wenzel, Peter StrauchRequires cookie*
 Title    Synthesis, Structural and EPR Investigations on Bis(tetraphenylphosphonium)- bis(l,2-dithiosquarato)oxovanadate(IV), (Ph4P)2[VO(dtsq)2]  
 Abstract    The molecular structure and EPR studies of bis(tetraphenylphosphonium)bis(1,2-dithiosquarato)oxovanadate(IV) are reported. (Ph4P)2[VO(dtsq)2] crystallizes in the mono­ clinic spaceogroup P2,/n with the unit cell parameters a = 10,9820(2), b = 15,4620(3), c = 14,5050(3) Ä, ß = 95,700(8)°, Z = 2. The g and hyperfine coupling tensors Av obtained from the EPR spectra in liquid and frozen solution are used to characterize the properties of the molecular orbital containing the unpaired electron and are compared to those obtained from EHT-MO calculations. 
  Reference    Z. Naturforsch. 54b, 165—170 (1999); eingegangen am 18. September 1998 
  Published    1999 
  Keywords    Sulfur, Oxovanadate(IV), Synthesis, EPR Data, Crystal Structure 
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 TEI-XML for    default:Reihe_B/54/ZNB-1999-54b-0165.pdf 
 Identifier    ZNB-1999-54b-0165 
 Volume    54