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1997 (1)
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 Title    Synthese und Eigenschaften von fra/zs-Bisnitro-phthalocyaninato(2-)iridat(III) und Pyridin-nitro-phthalocyaninato(2-)iridium(III)  
 Abstract    Kristallstruktur von linear-Bis(triphenylphosphin)iminium-fra/is-Bisnitro-phthalocyaninato(2-)iridat(III) S y nthesis a n d P ro p e rtie s o f /raA zs-B isn itro -p h th alo cy a n in ato (2 -)irid a te (III) an d P y rid in e -n itro -p h th a lo c y a n in a to (2 -)irid iu m (III); C ry sta l S tru c tu re o f linear-B is (trip h e n y lp h o sp h in e)im in iu m /ra « 5 -B isn itro -p h th a lo c y a n in a to (2 -)irid a te (III) H e in e r H ü c k stä d t, H e in e r H o m b o rg * Reaction of bis[phthalocyaninato(2-)iridium(II)] ([(Irpc2")2]) with nitric oxide in pyridine yields nitrosyl-containing intermediates that are immediately oxidized by air yielding pyri-dine-nitro-phthalocyaninato(2-)iridium(III) ([Ir(py)(,/V02)pc2 ]). Linear-bis(triphenylphos-phine)iminium frans-bisnitro-phthalocyaninatoiridate(III) (l(PNPy™,,v[Ir(/V02)2pc2"]) is pre­ pared by air-oxidation of [(Irpc2')2] in dichloromethane in the presence of (P N P)N 0 2. It crystallizes in the triclinic space group P I (no. 2) with the following cell parameters: a -10.649(1) Ä, b = 12.357(1) A, c = 12.841(1) A, a = 75.47(1)°, ß = 67.88(1)°, y = 65.31(1)°, Z = 1. Ir111 is in the centre of a slightly waving pc2~ ligand coordinating two nitro ligands in an eclipsed fram-arrangement. The average Ir-Niso distance is 1.993(2) A (N iso: isoindole N atom), the Ir-N distance is 2.189(3) A (N: nitrite N atom), respectively. The structural data of the nitrite ion are: d(ZV-O) = 1.194(4) and 1.042(5) A, Z(O -N -O) = 131.7(4)°). Spectral properties with diagnostic IR absorption bands at 820, 1331 and 1398 cm -1 confirm the nitro coordination. 
  Reference    Z. Naturforsch. 52b, 1003—1010 (1997); eingegangen am 6. Juni 1997 
  Published    1997 
  Keywords    Phthalocyaninates, Iridium Compounds, Nitro Compounds, Crystal Structure 
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 TEI-XML for    default:Reihe_B/52/ZNB-1997-52b-1003.pdf 
 Identifier    ZNB-1997-52b-1003 
 Volume    52