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'Mass Spectra' in keywords Facet   Publication Year 1995  [X]
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1995[X]
1Author    Z. NaturforschRequires cookie*
 Title    Synthesis  
 Abstract    o f N itrene C om plexes w ith N -T rim ethylsilylaniline I. Characterisation and Crystal Structure o f [R e(N Ph)C l3(E t2PhP)2] and [Re(N Ph)Cl3(Ph3P)2] • 1/2CHC13 U rsula W ittern, Joachim Strähle*, U lrich A bram rra»^-mt'r-Trichlorobis(diethylphenylphosphine)phenylnitrene rhenium(V), [Re(NPh)Cl3-(Et2PhP)2], has been synthesized from [ReOCl3(Et2PhP)2] and N-trim ethylsilylaniline, while rrans-ttZfr-trichlorophenylnitrenebisCtriphenylphosphine) rhenium(V), [Re(NPh)Cl3(Ph3P)2] has been obtained via a novel route, from (Bu4N)[ReOCl4] and N-trim ethylsilylanilin. The products were studied by mass spectrometry, IR spectroscopy and X-ray diffraction. rrafls-m er-[Re(NPh)Ch(Et-'PhP)2] crystallizes in the m onoclinic space group P2i/n with a = 1498.5(3), b = 1068.6(1), c = 1784.0(4) pm and ß = 91.28(1)°, Z = 4. The rhenium atom exhibits a distorted octahedral coordination with the phosphine groups in trails positions, and the Cl ligands in a meridional arrangement. The R e = N -C moiety is linear with a bond angle o f 169,4(5)°and a R e = N bond length o f 171.8(6) pm. [ R e (N P h) C h (P h 3 P) i ] 0.5 C H C I 3 c r y s t a l l i z e s in th e t r i c l i n i c s p a c e g r o u p P i w i t h a = 1232.1 (4), b= 1431.6(5), c = 2236.6(8) pm, a = 89.19(2)°, ß = 80.50(2)°and 7 = 88.26(2)°, Z = 4. The asymmetric unit contains two symmetry independent complex m olecules o f approxima­ tely the same structure, with Cl atoms meridionally arranged and the phosphine groups in trans positions. The coordination geometry is a distorted octahedron. The almost linear R e = N -C m oieties have R e = N bond lengths o f 170.2(7) and 170.8(7) pm, respectively, and R e -N -C angles o f 173.3(6)°and 175.0(7)°. 
  Reference    Z. Naturforsch. 50b, 997 (1995); eingegangen am 15. Februar 1995 
  Published    1995 
  Keywords    Rhenium(V) C om plexes, Phenylnitrene Com plexes, Crystal Structure, Mass Spectra 
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 TEI-XML for    default:Reihe_B/50/ZNB-1995-50b-0997.pdf 
 Identifier    ZNB-1995-50b-0997 
 Volume    50 
2Author    LutzD. Ahlenburg, A.Lexander WolskiRequires cookie*
 Title    Oligophosphan-Liganden, XXXIX*  
 Abstract    (lS,2S)-fraw s-C yclopentan-l,2-diyl-bis(phosphan), C5H 8(P H 2)2? durch Reduktion eines diastereomerenreinen Cyclopentandiyl-bis(dioxaphospholans) O ligophosphine Ligands, X X X IX . (1 5,25')-rra/t5-C yclopentane-l,2-diyl-bis(phosphine), C5FI8(P H 2)2, by R eduction of a D iastereom erically Pure C yclopentanediyl-bis(dioxaphospholane) C hristine E ckert, The title compound (S, S)-2, has been obtained by reduction with Li[A lH 4] o f the cyclopen-tane-l,2-diyl-bis(l',3',2'-dioxaphospholane) (1 5 ,2 S)-frans-C5H 8[P (0 C H (C 0 2Pr-/)-(/ ?) -)2]2, (S, 5")-l, which itself was isolated in diastereomerically pure form (X-ray structure analysis) from the reaction between rac, /rfl«s-CsH8(PCl2)2 and (2 /? ,3 /?)-(+)-d iiso p ro p y l tartrate. C l e a v a g e o f (S ,.S)-1 w i t h P C U y i e l d e d a n u n s e p a r a b l e m i x t u r e o f (1 S , 2 S W r a n s -C 5 H 8(P C l 2) 2 a n d (4 R .5 R) -C l P [ 0 C H (C 0 2P r -t) -]2. 
  Reference    Z. Naturforsch. 50b, 1004—1008 (1995); eingegangen am 30. N ovem ber 1994 
  Published    1995 
  Keywords    Chiral Bis(phosphine) Reduction of P -O, X-Ray, Mass Spectra, NM R Spectra 
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 TEI-XML for    default:Reihe_B/50/ZNB-1995-50b-1004.pdf 
 Identifier    ZNB-1995-50b-1004 
 Volume    50 
3Author    Neda, Michael Farkens, Holger Thönnessen, PeterG. Jones, Reinhard SchmutzlerRequires cookie*
 Title    Zur Chemie der l,3,5-Triaza-2-phosphorinan-4,6-dione. Teil X*. Umsetzungen von 2-Hydro  
 Abstract    l,3,5-trimethyl-l,3,5-triaza-2-oxo-2A4-phosphorinan-4,6-dion mit Triazin-Derivaten sowie mit einigen Aldehyden Chemistry of the l,3,5-Triaza-2-phosphorinan-4,6-diones. Part X*. Reactions of 2-H ydro-1,3,5-trim ethyl-1,3,5-triaza-2-oxo-2A4-phosphorinan-4,6-dione with Triazine Derivatives and with Some Aldehydes Ion 
  Reference    Z. Naturforsch. 50b, 1833—1 (1995); eingegangen am 8. Mai 1995 
  Published    1995 
  Keywords    1, 3, 5-Trimethyl-Substituted l, 3, 5-Triaza-2A 4 -phosphorinan-4, 6-diones, NM R Spectra, Mass Spectra, X-Ray 
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 TEI-XML for    default:Reihe_B/50/ZNB-1995-50b-1833.pdf 
 Identifier    ZNB-1995-50b-1833 
 Volume    50