Go toArchive
Browse byFacets
Bookbag ( 0 )
'UB NMR Spectra' in keywords Facet   section ZfN Section B  [X]
Results  2 Items
Sorted by   
Publication Year
1995 (1)
1984 (1)
1Author    A. Franken, W. PreetzRequires cookie*
 Title    Darstellung, n B-NMR-und Schwingungsspektren  
 Abstract    von Am inohexahydro-closo-hexaborat(l-), [B6H6(NH2)]~ sowie Kristallstruktur von Cs[B6H6(NH2)]*H 20 P rep aratio n , n B N M R and V ibrational Spectra of A m in o h e x a h y d ro -c lo so -h ex a b o ra te (l-), [B6H 6(N H 2)]' , and the C rystal S tructure of Cs[B6H 6(N H 2)] • H 20 By reduction of [B6H5(N0 2)]2_ with Fe2+ in aqueous alkaline solution [B6H6(NH2)]~ is formed. The compound has been separated by extraction with dichloromethane in the presence of tetrabutylammoniumbromid and precipitated from the organic phase by adding CsCH3COO/C2H5OH. The Crystal structure of Cs[B6H6(NH2)] H20 has been determined by single crystal X-ray diffraction analysis; monoclinic space group C2 with a = 22.1075(14), b = 6.491(2), c = 5.9570(4) Ä, ß = 100.168(6)°. The UB NMR spectrum is consistent with a mono-hetero-substituted octahedral B6 cage with local C4v symmetry. The IR and Raman spectra exhibit characteristic N -H , B -H and B6 vibrations. 
  Reference    (Z. Naturforsch. 50b, 11—14 [1995]; eingegangen am 9. August 1994) 
  Published    1995 
  Keywords    Aminohexahydro-closo-hexaborate(l-), Crystal Structure, UB NMR Spectra, Vibrational Spectra 
  Similar Items    Find
 TEI-XML for    default:Reihe_B/50/ZNB-1995-50b-0011.pdf 
 Identifier    ZNB-1995-50b-0011 
 Volume    50 
2Author    Azaborolinyl, G. Ünter Schmid, O. Ttm Ar Boltsch, D. Ieter Bläser, Roland BoeseRequires cookie*
 Title    Azaborolinyl-Komplexe, XV [1] Bis(f/5-l,2-azaborolinyI)ruthenium-Sandwichkomplexe — Darstellung und Strukturuntersuchung  
 Abstract    The synthesis of bis(l-rer?-butyl-2 -methyl-?75-l , 2 -azaborolinyl)ruthenium (1) and bis(2-methyl-l-trimethylsilyl-^5-l , 2 -azaborolinyl)ruthenium (2) succeeds when RuCL is reacted with the cor­ responding 1,2-azaborolinyl lithium compounds in THF at —70 °C. Each of the sandwich complex forms two isomers with a clockwise and an anti-clockwise conformation of the azaborolinyl rings. The anti-clockwise isomer of 1 (la) gives colourless crystals which were investigated by single­ crystal X-ray diffraction methods. The molecular structure shows the rings in an eclipsed orienta­ tion forming an interplanar angle of 8 .6 °. The isomers of 1 as well as of 2 give different 'H and "B NMR signals. 
  Reference    Z. Naturforsch. 39b, 1082 (1984); eingegangen am 4. Februar 1984 
  Published    1984 
  Keywords    Com plexes, XV [1] Bis(/;:'-l, 2-azaborolinyl)ruthenium Sandwich Complexes — Synthesis and Structure Investigation Azaborolinyl Sandwich Complex, Ruthenium, X-Ray, UB NMR Spectra, 'H NMR Spectra 
  Similar Items    Find
 TEI-XML for    default:Reihe_B/39/ZNB-1984-39b-1082.pdf 
 Identifier    ZNB-1984-39b-1082 
 Volume    39