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'Iridium Compounds' in keywords
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2001 (1)
1997 (2)
1Author    Matthias Wanner3, Ingo Hartenbach3, Jan Fiedler, Thomas Schleid3, Wolfgang Kaim3Requires cookie*
 Title    Zwei  
 Abstract    -und dreikemige Organometallkomplexe (ReS4)[MCl(C5Me5)], M = Rh, Ir, und (/x-WS4)[IrCl(C5Me5)]2 Dinuclear and Trinuclear Organometallic Complexes (ReS4)[MCl(C5Me5)], M = Rh, Ir, and (Ai-WS4)[IrCl(C5Me5)]2 The reactions of tetrathiorhenate(VII) or tetrathiotungstate(VI) with [MCl2 (C5 Me5)]2, M = Rh or Ir, yield the neutral title compounds of which (ReS4)[RhCl(C5 Me5)] and (/a-WS4)[IrCl(C5 Me5) ] 2 could be crystallographically characterized. The molecules contain nearly tetrahedral M'S4 units and rhodium(III) or iridium(III) centers with piano stool geometry. Weak intermolecular (M)C1--H(Me) interactions are observed in the crystals. Vibrational and elec­ tronic spectra are in agreement with the structures, illustrating p—d charge transfer interactions between the sulfide or chloride donors and the d° or d6 metal acceptor centers, respectively. Oxidation and reduction of the compounds occur completely irreversibly. 
  Reference    Z. Naturforsch. 56b, 940—946 (2001); eingegangen am 29. März 2001 
  Published    2001 
  Keywords    Iridium Compounds, Rhodium Compounds, Tetrathiometallates 
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 TEI-XML for    default:Reihe_B/56/ZNB-2001-56b-0940.pdf 
 Identifier    ZNB-2001-56b-0940 
 Volume    56 
2Author    Heiner Hückstädt, Heiner HomborgRequires cookie*
 Title    Synthese von Bis[pyridin-phthalocyaninato(l,5-)iridium(II)]iodid und Pyridin-iodo-phthalocyaninato(2-)iridium(III)-Pyridin durch schrittweise Oxydation von Bis[pyridin-phthalocyaninato(2-)iridium(II)]  
 Abstract    Synthesis of Bis[pyridine-phthalocyaninato(l,5-)iridium(II)] Iodide and Pyridine-iodo-phthalocyaninato(2-)iridium(III)-Pyridine by Successive Oxidation of Bis[pyridine-phthalocyaninato(2-)iridium(II)] Successive oxidation of bis[pyridine-phthalocyaninato(2-)iridium(II)] with iodine first yields mixed-valent bis[pyridine-phthalocyaninato(l,5-)iridium(II)] iodide ([(Ir(py)pc1 5'}2]I) and then pyridine-iodo-phthalocyaninato(2-)iridium(III)-pyridine ([Ir(py)(I)pc2_]-py). The latter crystallizes monoclinically with the following cell parameters: a = 10.258(1) A. b = 17.589(3) Ä, c = 19.723(2) Ä, ß = 92.95(1)°, space group P2j/n, Z = 4. Irm is in the centre of a slightly distorted pc2 ligand and coordinates pyridine and iodide in a fra/zs-arrangement. The average Ir-Niso distance is 1.995(5) A (Niso: isoindole N atom), the Ir-Npy and Ir-I distan­ ces are 2.102(5) and 2.657(1) A, respectively. By a similar oxidation of [{Rh(py)pc2 }2] only [Rh(py)(I)pc2~ ] py is obtained. Solid state spectral properties with diagnostic absorption bands at 1360. 1456, 5620 and 19800 cm-1 confirm the mixed-valent diphthalocyaninate(1.5-). 
  Reference    Z. Naturforsch. 52b, 728—734 (1997); eingegangen am 18. März 1997 
  Published    1997 
  Keywords    Phthalocyaninates, Iridium Compounds, Rhodium Compounds, Crystal Structure 
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 TEI-XML for    default:Reihe_B/52/ZNB-1997-52b-0728.pdf 
 Identifier    ZNB-1997-52b-0728 
 Volume    52 
3Author    Requires cookie*
 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