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  • 1
    Electronic Resource
    Electronic Resource
    Liver transplantation for alcoholic cirrhosis (2000)
    Springer
    Transplant international 13 (2000), S. S127 
    Details
    ISSN: 1432-2277
    Keywords: Key words Liver transplantation ; Alcoholic cirrhosis ; Alcohol relapse ; Outcome
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Because of the donor shortage, there are concerns for liver transplantation in patients with alcoholic cirrhosis. We therefore analyzed patients transplanted for alcoholic cirrhosis at our center with respect to patient and graft survival, recurrence of disease, and postoperative complications. Out of 1000 liver transplantations performed in 911 patients, 167 patients were transplanted for alcoholic cirrhosis; 91 patients received CsA- and 76 patients FK506-based immunosuppression. Recurrence was diagnosed by patient's or relative's declaration, blood alcohol determination, and delirium. Diagnosis and treatment of acute and chronic rejection was performed as previously described. One- (96.8 % versus 91.3 %) and 9-year patient survival (83.3 % versus 80 %) compared well with other indications. Five of 15 patients died due to disease recurrence. Recurrence of disease was significantly related to the duration of alcohol abstinence prior to transplantation. In patients who were abstinent for less than 6 months (17.1 %), recurrence rate was 65 %, including four of the five patients who died of recurrence. Recurrence rate decreased to 11.8 %, when abstinence time was 6–12 months and to 5.5 %, when the abstinence times was 〉 2 years. Next to duration of abstinence, alcohol relapse was significantly related to sex, social environment, and psychological stability. The incidence of acute rejection compared well with other indications (38.1 %); CsA: 40.1 % versus 33.3 % in FK506 patients. In all, 18.2 % of CsA patients experienced steroid-resistant rejection compared with 2.6 % of FK506 patients. Seven patients (7.6 %) in the CsA group and one patient (1.3 %) in the FK506 group developed chronic rejection. A total of 57.1 % developed infections; 5.7 % were life-threatening. CMV infections were observed in 14.3 % (versus 25 % for other indications). New onset of insulin-dependent diabetes was observed in 8.6 % and hypertension in 32.4 %. In conclusion, alcoholic cirrhosis is a good indication for liver transplantation with respect to graft and patient survival and development of postoperative complications. FK506 therapy was favourable to CsA treatment. Patient selection is a major issue and established criteria should be strictly adhered to. Patients with alcohol abstinence times shorter than 6 months should be excluded, since recurrence and death due to recurrence was markedly increased in this group of patients.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001470050297
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  • 2
    Electronic Resource
    Electronic Resource
    Perioperative factors influencing patient outcome after liver transplantation (2000)
    Springer
    Transplant international 13 (2000), S. S158 
    Details
    ISSN: 1432-2277
    Keywords: Key words Liver transplantation ; Multiple organ dysfunction syndrome ; Patient outcome ; Donor recipient status
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We have previously shown that the development of multiple organ dysfunction syndrome (MODS) after liver transplantation significantly reduced patient survival. Therefore, the question arises of which are the most prominent perioperative donor and recipient factors leading to MODS after transplantation. In total, 634 patients with 700 liver transplants were analyzed. Donor factors included age, increase in transaminases, sex mismatch, requirement for catecholamines, intensive care time, histology, and macroscopic graft appearence. Recipient factors included Child classification, preoperative gastrointestinal (GI) bleeding, mechanical ventilation, hemodialysis, and requirement for catecholamines. MODS was defined by more than two severe organ dysfunctions. The cumulative 2 to 9-year patient survival was 90.9 % in patients developing less than 3 severe organ dysfunctions following transplantation. Survival decreased to 60.3 % in patients with MODS. Neither any of the donor factors nor the duration of cold ischemia (CIT) was associated with an increase in MODS or decrease in survival. On the other hand, duration of warm ischemia, amount of blood loss, requirement for red packed blood cells, and reoperation had an influence on the development of MODS (40 %–56 %) and decreased patient survival to 58 %–69 %. Preoperative therapy with catecholamines, GI bleeding, mechanical ventilation, and hemodialysis were associated with the development of MODS in 54 %–88 %. Patient survival following MODS decreased to 50 %–74 %. Initial graft function had a slight influence on the development of MODS, but no influence on the long-term patient survival. In conclusion, patient survival was significantly influenced by the development of postoperative MODS. The most prominent factors in this were recipient and intraoperative ones. No major influence was observed for donor factors, CIT, and initial graft function. Prevention of MODS will further improve the outcome after liver transplantation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001470050311
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  • 3
    Electronic Resource
    Electronic Resource
    Searching for the optimal management of hepatitis C patients after liver transplantation (1998)
    Springer
    Transplant international 11 (1998), S. S209 
    Details
    ISSN: 1432-2277
    Keywords: Key words Liver transplantation ; Hepatitis C
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The optimal immunosuppressive regimen in patients transplanted for hepatitis C (HCV) is still under discussion. High immunosuppression may promote viral replication and recurrent graft hepatitis. But acute and chronic rejection frequently seen in conjunction with HCV recurrence may require some rescue therapy. One hundred and thirty-seven patients transplanted for HCV cirrhosis, who were HCV-RNA positive prior to transplantation, were analyzed. Seventy-nine patients received CSA-based immunosuppression and 58 patients FK506-based immunosuppression. One-month patient survival was 100 % in both groups. Three month and 1-year survival rates and the cumulative 1–5-year patient survival was similar in CsA-treated [67/79 (84.8 %)] and FK506-treated patients [50/58 (86.2 %)]. Retransplantations for HCV recurrence were performed in 5.1 % of CsA-treated patients and 6.9 % of FK506-treated patients; it was successful in 50 % and 75 % of patients, respectively. Conversion from CsA to FK506 and vice versa was high with 25 out of 79 patients (31.6 %) converting in the CsA group and 8 out of 58 patients (13.8 %) converting in the FK506 group. Conversion to FK506 was performed due to acute and chronic rejection and to CsA because of toxicity and HCV recurrence. In both groups, 25 % of converted patients died. Five patients of the CsA group and 9 of the FK506 group received OKT3; more than one-third of each group died. Five patients in the CsA group and 6 in the FK506 group received mycophenolate mofetil (MMF) for HCV recurrence or acute and chronic rejection in conjunction with HCV recurrence. All patients of this critical group are alive with good graft function. In conclusion, survival rates of HCV patients were similar to those seen for other indications. Conversion from CsA to FK506 and vice versa was high and reflects a critical group concerning patient survival. OKT3 treatment should be avoided. A promising therapeutic option for critical patients experiencing acute or chronic rejection in conjunction with HCV recurrence may be treatment with MMF.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s001470050463
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  • 4
    Electronic Resource
    Electronic Resource
    Röntgenstrukturanalyse des 1,3-Bis(diethylamino)-1,3-dibenzyl-2,4-diphenyl-1λ5, 3λ5-diphosphets (1992)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 609 (1992), S. 99-102 
    Details
    ISSN: 0044-2313
    Keywords: Diphosphete ; crystal structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: X-Ray Crystal Structure Determination of 1,3-Bis(diethylamino)-1,3-dibenzyl-2,4-diphenyl-1λ5, 3λ5-diphospheteBenzylidene-diethylamino-benzylfuorophosphorane, 1, reacts with lithium bis(trimethylsilyl)amide to give the title compounds 2 and 1-diethylamino-2,3-diphenylphosphirane, 3. Only one of the stereoisomers of 2 is formed in which the two benzyl groups are located on the same side of the planar four-membered ring. 2 crystallizes in the monoclinic space group P21/n.
    Notes: Benzyliden-diethylamino-benzylfuorphosphoran, 1, reagiert mit Lithium-bis(trimethylsilyl)-amid zur Titelverbindung 2 und 1-Diethylamino-2,3-diphenylphosphiran, 3. Von 2 wird nur das Stereoisomer gebildet, bei dem die beiden Benzylgruppen auf der gleichen Seite des ebenen viergliedrigen Rings angeordnet sind. 2 kristallisiert in der monoklinen Raumgruppe P21/n.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19926090319
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  • 5
    Electronic Resource
    Electronic Resource
    Penicillamin-Komplexe des Nickels, Chroms und Molybdäns  -  Strukturelle Besonderheiten und biologische/medizinische Relevanz (1993)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 619 (1993), S. 1037-1046 
    Details
    ISSN: 0044-2313
    Keywords: Nickel ; chromium ; molybdenum ; penicillamine ; complexes ; synthesis ; crystal structure ; antidot ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Penicillamine Complexes of Nickel, Chromium, and Molybdenum  -  Structural Particularity and Biological/Medical RelevanceThe compounds Tl2[NiII(H2O)6][NiII(D-pen)(L-pen)]2[NiII(SCN)2(H2O)4] 1, Tl[NiII(D-pen)2H] · H2O 2, Tl[CrIII(D-pen)2] 3, and Na2[Mo2VO4(pen)2] · 3 CH3OH · 3 H2O 4 have been prepared by the reaction of nickel nitrate (for 1), nickel acetate (for 2), potassium chromate (for 3), and sodium molybdate (for 4) with D- and D, L-penicillamine, respectively. They were characterized by single-crystal X-ray structure analysis and other physical methods. Whereas penicillamine acts as a bidentate (N, S)-ligand in 1 and 2, CrIII (in 3), and MoV (in 4) are coordinated to the three ligand atoms N, O, and S. The presence of three different types of NiII-complexes a cationic, a neutral, and an anionic one in 1 is remarkable.For crystal data see Inhaltsübersicht.
    Notes: Die Verbindungen Tl2[NiII(H2O)6][NiII(D-Pen)(L-Pen)]2[NiII(SCN)2(H2O)4] 1, Tl[NiII(D-Pen)2H] · H2O 2, Tl[CrIII(D-Pen)2] 3 und Na2[Mo2VO4(Pen)2] · 3 CH3OH · 3 H2O 4 wurden durch Umsetzung von Nickelnitrat (für 1), Nickelacetat (für 2), Kaliumchromat (für 3) und Natriummolybdat (für 4) mit D- bzw. D, L-Penicillamin in wäßriger Lösung dargestellt und durch Einkristallstrukturanalyse und andere physikalische Methoden charakterisiert. Während in den Ni-Pen-Komplexen von 1 und 2 Penicillamin als zweizähniger Ligand (N, S) fungiert, sind CrIII in 3 und MoV in 4 über N, O und S koordiniert. Bemerkenswert ist, daß in 1 drei verschiedene Ni-Komplexe und zwar ein kationischer, ein neutraler und ein anionischer in einer Elementarzelle vorliegen.1: C2/m, a = 1 484,6(4), b = 1 358,7(4), c = 1 204,7(3) pm, β = 103,75(2)°, V = 2 360,4(11) ° 106 pm3, R = 0,042 für 1 633 unabhängige Reflexe (Fo〉 4,0σ(Fo)), Z = 2.2: C2, a = 2 279,9(7), b = 613,1(1), c = 1 275,2(3) pm, β = 110,94(2)°, V = 1 664,8(6) · 106 pm3, R = 0,056 für 1 413 unabhängige Reflexe (Fo〉 4,0σ(Fo)), Z = 4.3: C2, a = 2 054,0(3), b = 592,1(1), c = 606,7(1) pm, β = 92,89(1)°, V = 736,95(17) · 106 pm3, R = 0,028 für 862 unabhängige Reflexe (Fo〉 4,0σ(Fo)), Z = 2.4: P1, a = 996,2(4), b = 1 222,2(7), c = 1 395,3(7) pm, = 114,27(4), β = 104,55(4), γ = 95,63(4)°, V = 1 459,4(13) · 106 pm3, R = 0,072 für 3 763 unabhängige Reflexe (Fo〉 4,0σ(Fo)), Z = 2.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19936190614
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  • 6
    Electronic Resource
    Electronic Resource
    Einfache Trithio- und Perthiocarbonatokomplexe mit interessanter Koordinationschemie: [E(CS3)2]2- (E = Sn, Zn, Cd), [E(CS3)3]3- (E = As, Sb, Bi, Co), {Cu(CS3)-}∞ und [Zn(CS4)2]2-Professor Hubert Schmidbaur zum 60. Geburtstag gewidmet (1995)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 621 (1995), S. 1160-1170 
    Details
    ISSN: 0044-2313
    Keywords: zinc, cadmium, tin, arsenic, antimony, bismuth, cobalt, copper, trithio complexes, perthio complexes, perthiodicarbonate ; synthesis ; crystal structure ; IR spectroscopy ; Raman spectroscopy ; 113Cd and 59Co NMR spectroscopy ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Simple Trithio- and Perthiocarbonato Complexes with Interesting Bond Properties: [E(CS3)2]2- (E = Sn, Zn, Cd), [E(CS3)3]3- (E = As, Sb, Bi, Co), {Cu(CS3)-}∞ and [Zn(CS4)2]2-By reactions of potassium trithiocarbonate (1) with solutions of zinc(II)- acetylacetonate, cadmium(II)-chloride, tin(II)-chloride, arsenic(III)-sulfide (suspension), antimony(III)-chloride, bismuth(III)-chloride and copper(II)-chloride in dimethyl sulfoxide, as well as of trisodium hexanitrito cobaltate(III) in water, and the precipitation of the complexes with an aqueous solution of tetraphenylphosphonium chloride the compounds (PPh4)2[Zn(CS3)2] (2), (PPh4)2[Cd(CS3)2] (3), (PPh4)2[Sn(CS3)2] (4), (PPh4)3[As(CS3)3] (5), (PPh4)3[Sb(CS3)3] (6), (PPh4)3[Bi(CS3)3] (7), (PPh4)3[Co(CS3)3] (8) and (PPh4)Cu(CS3) (9) have been isolated. (PPh4)2[Zn(CS4)2] · CH3NO2 (10) has been prepared by heating a solution of 2 in nitromethane to 60--70°C in presence of air. The reaction of 1 in dimethyl sulfoxide with an aqueous tetraphenylphosphonium chloride solution in presence of oxygen leads to (PPh4)2[C2S6] (11). The compounds have been characterized by spectroscopical studies (IR, Raman, UV/Vis, 113Cd/59Co-NMR), magnetic susceptibility measurements, powder diffractometry, elemental analyses and single crystal X-ray structure analysis (4-7, 10 and 11). The difficult growing of single crystals has been reported in detail. For crystal data see Inhaltsübersicht.
    Notes: Durch Reaktion von Lösungen von Zink(II)-acetylacetonat, Cadmium(II)-chlorid, Zinn(II)-chlorid, Arsen(III)-sulfid (Suspension), Antimon(III)- chlorid, Bismut(III)-chlorid und Kupfer(II)-chlorid in Dimethylsulfoxid - bzw. von Trinatriumhexanitritocobaltat(III) in Wasser - mit Kaliumtrithiocarbonat (1) sowie anschließender Fällung der Komplexe mit wäßriger Tetraphenylphosphoniumchlorid-Lösung wurden die Verbindungen (PPh4)2[Zn(CS3)2] (2), (PPh4)2[Cd(CS3)2] (3), (PPh4)2[Sn(CS3)2] (4), (PPh4)3[As(CS3)3] (5), (PPh4)3[Sb(CS3)3] (6), (PPh4)3[Bi(CS3)3] (7), (PPh4)3[Co(CS3)3] (8) und (PPh4)Cu(CS3) (9) isoliert. (PPh4)2[Zn(CS4)2] · CH3NO2 (10) ließ sich aus einer Lösung von 2 in Nitromethan, die in Gegenwart von Luftsauerstoff auf 60-70°C erwärmt wurde, isolieren. Bei Umsetzung von 1 in Dimethylsulfoxid mit einer wäßrigen Tetraphenylphosphoniumchlorid-Lösung in Gegenwart von Sauerstoff bildete sich (PPh4)2[C2S6] (11). Die Verbindungen wurden durch spektroskopische Methoden (IR, Raman, UV/VIS sowie 113Cd- und 59Co-NMR), Messung der magnetischen Suszeptibilität, Pulverdiffraktometrie, Elementaranalysen und Einkristall-Röntgenstrukturanalyse (4-7, 10 und 11) charakterisiert. Die schwierige Züchtung von Einkristallen wird im Detail beschrieben. 4:P1, a = 969,1(2), b = 1 335,3(3), c = 3 749,9(7) pm, α = 84,54(3)°, β = 80,88(3)°, γ= 74,90(3)°, V = 4 618(2)×106 pm3, Z = 4, R = 0,082 für 7 635 unabhängige Reflexe (Fo 〉 4σ(Fo));5:C2/c, a = 2 236,6(4), b = 1 441,0(3), c = 4 267,7(9) pm, β = 98,59(3)°, V = 13 600(15)×106 pm3, Z = 8, R = 0,130 für 3 807 unabhängige Reflexe (Fo 〉 4σ(Fo));6:P21, a = 1 555,0(9), b = 1 437,1(5), c = 1 587,6(9) pm, β = 90,30(5)°, V = 3 547(3)×106pm3, Z = 2;7:P21, a = 1 559,6(4), b = 1 425,2(4), c = 1 585,1(4) pm, β = 90,05(2)°, V = 3 523(2)×106 pm3, Z = 2, R = 0,088 für 4 206 unabhängige Reflexe (Fo 〉 4σ(Fo));10:C2/c, a = 1 049,1(4), b = 2 023,9(9), c = 2 474,7(9) pm, β = 99,93(3)°, V = 5 176(3)×106 pm3, Z = 4, R = 0,079 für 2 172 unabhängige Reflexe (Fo 〉 4σ(Fo));11:P21/c, a = 1 673,0(5), b = 1 430,8(5), c = 1 859,1(5) pm, β = 94,12(2)°, V = 4 439(2)×106 pm3, Z = 4, R = 0,086 für 4 014 unabhängige Reflexe (Fo 〉 4σ(Fo)).
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19956210708
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  • 7
    Electronic Resource
    Electronic Resource
    Über grünes Bis-(2-Iminoisopropyl-thiophenolato)-nickel(II) und weitere, ähnliche NiII-KomplexeProfessor Herbert Schumann zum 60. Geburtstag gewidmet (1996)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 622 (1996), S. 1765-1772 
    Details
    ISSN: 0044-2313
    Keywords: Nickel ; Schiff base complexes ; synthesis ; crystal structure ; hydrogenase ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Green Bis-(2-iminoisopropyl-thiophenolato)nickel(II) and other Similar NiII ComplexesThe compounds [NiII(iitp)2] 1 (iitp = 2-iminoisopropyl-thiophenolate), [Ni2II(imptp)2] · 2 CH3OH 2, a dinuclear compound with an Ni—Ni distance of 276 pm, and [PPh4] · [NiII(imptp)(SCN)] 3 (imptp = 2-(2-iminopentane-4-on)-thiophenolate) have been prepared by the reaction of nickel(II)-acetate-tetrahydrate with 2-iminoisopropyl-thiophenole and 2-(2-iminopentane-4-on)-thiophenole in methanol, respectively. They have been characterized by single-crystal X-ray structure analysis and other physical methods. The redox behaviour of 1-3 has been studied in detail (chemically as well as by cyclovoltammetry and ESR spectroscopy). Particularly interesting are the electronic properties of 1 and its reduction with NaBH4 and the following reaction of the product with O2. The complexes are model compounds for some Ni-containing enzymes. For details of the crystal structure determination see “Inhaltsübersicht”.
    Notes: Die Verbindungen [NiII(iitp)2] 1 (iitp = 2-Iminoisopropyl-thiophenolat), [Ni2II(imptp)2] · 2 CH3OH 2, eine Zweikernverbindung mit einem Ni—Ni-Abstand von 276 pm und [PPh4][NiII(imptp)(SCN)] 3 (imptp = 2-(2-Iminopentan-4-on)-thiophenolat) wurden durch Umsetzung von Nickel(II)-acetat-tetrahydrat mit 2-Iminoisopropyl-thiophenol bzw. 2-(2-Iminopentan-4-on)-thiophenol in Methanol dargestellt und durch Einkristallstrukturanalyse und andere physikalische Methoden charakterisiert. Das Redoxverhalten der Verbindungen 1-3 wurde mittels elektrochemischer, chemischer und spektroskopischer Methoden untersucht. Bemerkenswert sind die elektronischen Eigenschaften der grünen Verbindung 1, sowie ihre Reduktion mit NaBH4 und die darauffolgende Umsetzung des Reaktionsproduktes mit O2. Die Verbindungen besitzen Modellcharakter für einige Ni-haltige Enzyme.1: C2/c, a = 1298,3(2); b = 695,7(1); c = 1958,7(3) pm; β = 103,92(1)°; V = 1717,4(5) · 106 pm3; R = 0,035 für 1230 unabhängige Reflexe (Fo 〉 4σ(Fo)), Z = 4.2: P1, a = 947,9(2); b = 1229,5(3); c = 1254,7(3) pm; α = 67,28(2), β = 74,63(2), γ = 81,18(2)°; V = 1298,4(5) · 106 pm3; R = 0,082 für 3655 unabhängige Reflexe (Fo 〉 4σ(Fo)), Z = 2.3: P21, a = 1119,3(2); b = 2389,7(4); c = 1245,8(2) pm; β = 102,52(1)°; V = 3253,0(9) · 106 pm3; R = 0,051 für 4218 unabhängige Reflexe (Fo 〉 4σ(Fo)), Z = 4.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19966221022
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  • 8
    Electronic Resource
    Electronic Resource
    (PPh4)[(ReO2S2)CuI] und (NEt4)2[(ReOS3)Cu3Cl4]: Fixierung der bisher nicht isolierten Ionen [ReO2S2]- und [ReOS3]- durch Ausnutzung der Stabilität der CuS2(Re)- und Cu3S3(Re)-Fragmente (1992)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 614 (1992), S. 115-120 
    Details
    ISSN: 0044-2313
    Keywords: Oxothioperrhenate ions, ReO2S2-, ReOS3- ; preparation ; crystal structure ; IR, UV/Vis spectra ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: (PPh4)[(ReO2S2)CuI] and (NEt4)2[ReOS3)Cu3Cl4]: Fixation of the up to now not Isolated Ions [ReO2S2]- and [ReOS3]- Utilizing the Stability of the CuS2(Re) and Cu3S3(Re) Fragments(PPh4)[(ReO2S2)CuI] (1) and (NEt4)2[ReOS3)Cu3Cl4] (2) containing the up to now not isolated oxothioperrhenate ions [ReO2S2]- and [ReOS3]- as ligands, have been prepared by the reaction of (NEt4)[ReS4] with PPh3 and CuI in acetone in the presence of (PPh4)I ((1)) or with CuCl in CH2Cl2 in the presence of (NEt4)Cl ((2)), respectively. 1 and 2 have been characterized by X-ray structure analysis, elemental analysis and spectroscopic studies (IR, UV/Vis). The electronic spectra show bands which can approximately be assigned to interesting low-energy charge-transfer-transitions of the type d(Cu) → d(Re).For crystal data see Inhaltsübersicht.
    Notes: (PPh4)[(ReO2S2)CuI] (1) und (NEt4)2[(ReOS3)Cu3Cl4] (2), die die bisher nicht isolierten Oxothioperrhenat-Ionen [ReO2S2]- und [ReOS3]- als Liganden enthalten, wurden durch Reaktion von (NEt4)[ReS4] mit PPh3 und CuI in Aceton in Gegenwart von (PPh4)I ((1) bzw. entsprechend mit CuCl in CH2Cl2 in Gegenwart von (NEt4)Cl ((2) erhalten. 1 und 2 wurden durch Einkristall-Röntgenstrukturanalyse, Elementaranalyse, sowie spektroskopische Untersuchungen (IR, UV/Vis) charakterisiert. In den Elektronenspektren findet man Banden, die interessanten niederenergetischen Charge-Transfer-Übergängen des Typs d(Cu) → d(Re) näherungsweise zugeordnet werden können.Kristalldaten: 1P21/n, a = 1162,2(4), b = 1395,7(6), c = 1612,3(9)pm, β = 96,53(4)° V = 2598(2) · 106pm3, R = 0,049 für 4623 unabhängige Reflexe (F0≥4,0σ(F0)).2C2/c, a = 2059,0(5), b = 1352,9(3), c = 2217,1(5)pm, β = 90,26(22)° V = 6176(2) · 106pm3, R = 0,080 für 3162 unabhängige Reflexe (F0≥4,0σ(F0)).
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19926140820
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