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1993[X]
1Author    K. Urt Merzweiler, Ludwig Brands, Jürgen SpohnRequires cookie*
 Title    Neue In2P2-Vierringe  
 Abstract    Synthese und Kristallstrukturen von [{iPrIn(//-fBu2P)Cl}2] und [{Me3SiCH2In(/i-fBu2P)Cl}2l New Four-M em bered In2P2 Rings. Snythesis and Crystal Structures of [{/PrIn(//-/Bu2P)Cl}2] and [~{Me3SiCH2In(//-/Bu2P)Cl}2] The reaction of organoindium halides R InC l2 with /Bu2PSiMe3 leads to compounds of the type [{RIn(jU-rBu2P)Cl}2] (R = /P r : 1, M e3SiCH2: 2). According to the crystal structure deter­ minations 1 and 2 contain planar In7P, rings. The In atoms are coordinated to two bridging /Bu,P groups, a terminal alkyl group and a term inal 
  Reference    Z. Naturforsch. 48b, 1315—1320 (1993); eingegangen am 29. M ärz 1993 
  Published    1993 
  Keywords    Indium, Phosphorus, X-Ray 
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 TEI-XML for    default:Reihe_B/48/ZNB-1993-48b-1315.pdf 
 Identifier    ZNB-1993-48b-1315 
 Volume    48 
2Author    RostislavD. Lampeka, Zam Ira, D. Uzakbergenova, VictorV. SkopenkoRequires cookie*
 Title    Spectroscopic and X-Ray Investigation of Cobalt(III) Complexes with 2-Oximinocarboxylic Acids  
 Abstract    Mixed complexes of Co(III) with 2-oximinopropionic (H 2A) or 2-oximino-3-phenylpropionic (H 2B) acid and different amine (imidazole, benzimidazole, pyridine, yS-picoline, y-picoline) are reported. Characterization of the complexes was based upon ele­ mental analysis, conductivity and JR, 'H N M R, and electronic absorption spectra, and X-ray diffraction analysis. The organic ligands behave as 0 ,N donors via the carboxyl oxygen and the oxime nitrogen atoms. A trans-octahedral structure has been assigned to the bis(2-oximino-carboxylato)bis(am ine)cobalt(III) on the basis of 'H N M R data. The crystal and molecular structures of the complexes rra«5-[bis(2-oximinopropionato)bis-(imidazole)]-(I) and ^ • a«5'-[bis(2-oximinopropionato)bis(pyridine)]cobalt(III) (II) were deter­ mined. I crystallizes in space group P 2/« with a = 14.167(2), b = 8.774(_1), c = 14.785(2)Ä, ß = 113.37(1)°, Z = 4, Dca)c = 1.568 g e m '3. II crystallizes in space group P 1 with a = 9.122(2), b = 10.038(2), c = 11.759(2) A, a = 69.95(1)°, ß = 67.47(2)°, y = 69.49(2)°, Z = 2, Dcalc = 1.547 g-cm~3. The structures were refined to unweighted R factors of 0.036 and 0.028, respec­ tively. The coordination sphere around Co is pseudo-octahedral with the 2-oxim inopropionato ligands occupying four equatorial positions, and the amines in axial po­ sitions. 
  Reference    Z. Naturforsch. 48b, 409—417 (1993); received November 2 1992 
  Published    1993 
  Keywords    Cobalt, Oximiocarboxylic Acid, Amine, X-Ray 
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 TEI-XML for    default:Reihe_B/48/ZNB-1993-48b-0409.pdf 
 Identifier    ZNB-1993-48b-0409 
 Volume    48 
3Author    JohannK. Lessmann, Helmut Rupa, Lackner, Karen Schmidt-Bäse, GeorgeM. SheldrickRequires cookie*
 Title    Holger  
 Abstract    The isolation o f Juglorubin (2) from cultures o f Streptomyces spp., which produce a series o f other hydroxynaphthoquinones, is described. 2 is a unique, unusually condensed ionic color­ 
  Reference    Z. Naturforsch. 48b, 672 (1993); eingegangen am 21. Dezember 1992 
  Published    1993 
  Keywords    Antibiotics, Juglomycins, X -Ray, N M R Spectra 
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 TEI-XML for    default:Reihe_B/48/ZNB-1993-48b-0672.pdf 
 Identifier    ZNB-1993-48b-0672 
 Volume    48 
4Author    ThomasG. Meyer, PeterG. Jones, Reinhard SchmutzlerRequires cookie*
 Title    Darstellung neuer Monofluorphosphine und einiger ihrer Übergangsmetallkomplexe; Einkristall-Röntgenstrukturanalyse eines Platin(II)-Komplexes Preparation of New M onofluorophosphines and Some o f their Transition Metal Complexes; Single Crystal X-Ray Diffraction Study o f a Platinum (II) Complex  
 Abstract    The reaction of lithiated precursors with PC12F led to a num ber of monofluorophosphines, including the known di-/e>7-butylmonofluorophosphine, 1. Bis(phenylethinyl)monofluoro-phosphine (2) was accessible only via this route (the classical method of synthesizing 2 by chlorine/fluorine exchange is impossible, because the corresponding chlorophosphine is un­ known). Bis(2-methoxyphenyl)fluorophosphine (5) was prepared via the organolithium /PCl2F route. The N M R results for 5 thus prepared were inconsistent with previous reports, implying that the previously reported synthesis o f 5 is in error. From 5 a m -dichloroplatinum (II) com­ plex (6) was synthesized and subjected to a single crystal X-ray structure analysis, confirming the expected planar coordination. From bis(2,3-dimethoxynaphthyl)monofluoro-phosphine (7) a rhodium(I) (8) and an iron(0)tetracarbonyl complex (9) were prepared. An iron(0)tetracarbonyl complex (11) was synthesized from bis(9-anthryl)monofluorophosphine (10) which was found to be stable to redox disproportionation. 
  Reference    Z. Naturforsch. 48b, 875—885 (1993); eingegangen am 16. Februar 1993 
  Published    1993 
  Keywords    Dichlorofluorophosphine, M onofluorophosphines, Transition Metal Complexes, X-Ray 
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 TEI-XML for    default:Reihe_B/48/ZNB-1993-48b-0875.pdf 
 Identifier    ZNB-1993-48b-0875 
 Volume    48 
5Author    Vadim Pavlenko, Vladimir Kokozay, Olga BabichRequires cookie*
 Title    Direct Synthesis of Tetranuclear Complexes of Copper(II) with /i4-Bridging Oxygen  
 Abstract    The direct synthesis of a num ber complexes with general composition Cu4OCl6 «(CH 3)2NH-raSolv, where n = 4, m = 0 -2 and Solv = C H 3OH, DMSO, is reported. It is shown by X-ray structure investigation, that in Cu4OCl6-4 (C H 3)2N H the copper atoms are linked by //4-oxygen and //2-chlorine bridging atoms, while molecules of (CH3)2NH are at­ tached to the metal atoms via nitrogen ones. 
  Reference    Z. Naturforsch. 48b, 1321—1324 (1993); received April 22 1993 
  Published    1993 
  Keywords    Direct Synthesis, Copper(II) Complexes, X-Ray 
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 TEI-XML for    default:Reihe_B/48/ZNB-1993-48b-1321.pdf 
 Identifier    ZNB-1993-48b-1321 
 Volume    48 
6Author    Dieter Seilmann, Helge Friedrich, Falk KnochRequires cookie*
 Title    Transition Metal Complexes with Sulfur Ligands, XCIX  
 Abstract    Form ation and Structure of [Fe('S4')]4. A Rem arkable Tetram erization of Homochiral [Fe('S4')] Complex Fragments ('S4'2-= l,2-Bis(2-m ercaptophenylthio)ethane(2-)) In MeOH/THF solution, Fe(II) ions and the tetradentate thioether-thiolate 'S4'2"([l,2-Bis(2-mercaptophenylthio)ethane(2-)]) slowly form the tetrameric [Fe('S4')]4 1. The crystal structure of 1 THF -2MeOH was determined by X-ray structure analysis. Chiral 1 crystallizes as a pair of enantiomers each of which consist of four homochiral [Fe('S4')] fragments bridged via /i2-and //3-S(thiolato) donors; stereochemical aspects o f the enantiospecific tetramerization of [Fe('S4')] fragments are discussed. In strong polar solvents such as dimethylformamide, dis­ sociation of [Fe('S4')]4 into [Fe('S4')]2 fragments is indicated by the formation o f [Fe(CO)('S4')]2 upon reaction with CO. 
  Reference    Z. Naturforsch. 48b, 1675—1680 (1993); eingegangen am 9. Juli 1993 
  Published    1993 
  Keywords    Iron Sulfur Complex, Chirality, X-Ray 
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 TEI-XML for    default:Reihe_B/48/ZNB-1993-48b-1675.pdf 
 Identifier    ZNB-1993-48b-1675 
 Volume    48 
7Author    Herrn Prof, Dr, J. Otto, SchererRequires cookie*
 Title    Übergangsmetall-substituierte Acylphosphane und Phosphaalkene, XIX [1]  
 Abstract    Synthese und Strukturbestimmung von l-Metallo-l,2-dihydrophospheten (jj5-C5Me5XCO)2M -P C H (E)-C (E)= C -NMe2 (M = Fe, Ru; E = C 0 2Me, CN) Transition Metal Substituted Acylphosphanes and Phosphaalkenes, XIX [1] Synthesis and Structure Determ ination of l-M etallo-l,2-dihydrophosphetes (^5-C5M e5)(CO)2M -P C H (E)-C (E) = C -N M e 2 (M = Fe, Ru; E = C 0 2 Me, CN) L othar Weber* 3, O laf Kam inski3, H ans-Georg Stammler3, Beate Neumann3, Vadim D. R om anenkob The metallo-phosphaalkenes (/75-C5Me5)(CO)2M -P = C (N R 2)2 (4a,b, 5) result from the reac­ tion of the corresponding bromo compounds (/75-C5Me5)(CO)2MBr with Me3Si-P = C (N R 2)2. The complexes 4a and 5a are cleanly converted into the l-metallo-l,2-dihydrophosphetes (//5-C5Me5)(CO)2M -PCH(E)-C(E) = C -NM e2 (lO a -c) (M = Fe, Ru; E = C 0 2Me, CN) by treatment with equimolar amounts of dimethyl fumarate or fumarodinitrile, respectively. The products 4a,b, 5 and lO a -c have been characterized by elemental analysis as well as by spec­ troscopic data (IR, 'H, 13C, 3IP NM R, MS). The molecular structures o f 4a and 10a have been determined by single crystal X-ray analysis. 
  Reference    Z. Naturforsch. 48b, 1784—1794 (1993); eingegangen am 23. Juni 1993 
  Published    1993 
  Keywords    Phosphaalkenes, Metallo-l, 2-dihydrophosphetes, X-Ray 
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 TEI-XML for    default:Reihe_B/48/ZNB-1993-48b-1784.pdf 
 Identifier    ZNB-1993-48b-1784 
 Volume    48 
8Author    Jörg Münzenberg, HerbertW. Roesky, M. Athias Noltemeyer, Susanne Besser, Regine Herbst-IrmerRequires cookie*
 Title    Synthese und struktureller Vergleich einiger TeIlur(IV)-Iminate Syntheses and Structural Com parison of Some Tellurium(IV) Iminates  
 Abstract    T e -N compounds with Ph;SN and Ph2CN ligands were synthesized by treating TeCl4, TeF4, and ArTeCl3 (Ar = p-M eO C6H4) with the corresponding silylated ligand precursors 1 and 5. The l25Te N M R spectra of the com pounds Cl3TeN SPh2 2, Cl2Te(NSPh2)2 3, ArTe(Cl2)NSPh2 4, Cl2Te(N CPh2)2 6, F2Te(N CPh2)2 7 and ArTe(Cl2)N C Ph2 8 have been deter­ mined. The X-ray structures of the com pounds 2 -Pyridin, 3 and 8 show Cl-bridged dimers in the solid state, while 6 and 7*0.5 MeCN are monomeric. In the diphenylsulfiminates 2-Pyridin and 3 short T e -N bond distances are found. 
  Reference    Z. Naturforsch. 48b, 199—208 (1993); eingegangen am 3. September 1992 
  Published    1993 
  Keywords    Diphenylsulfiminates, Diphenylketiminates, X-Ray, , 25Te N M R Spectra 
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 TEI-XML for    default:Reihe_B/48/ZNB-1993-48b-0199.pdf 
 Identifier    ZNB-1993-48b-0199 
 Volume    48 
9Author    Ion Neda, Michael Farkens, Axel Fischer, PeterG. Jones, R. Einhard SchmutzlerRequires cookie*
 Title    Zur Chemie der l,3,5-Triaza-2-phosphinan-4,6-dione, Teil V* Darstellung der Phosphoryl(III)(A4P)-und Thiophosphoryl(III)(A4P)-Derivate der l,3,5-Triaza-2-phosphinan-4,6-dione. Umsetzungen mit Ketonen  
 Abstract    Chemistry of the l,3,5-Triaza-2-phosphinane-4,6-diones, Part V Synthesis of Phosphoryl(III)(^4P) and Thiophosphoryl(III)(/!.4P) Derivatives of 1.3.5-Triaza-2-phosphinane-4,6-diones. Reactions with Ketones 18. M ärz 1993 1.3.5-Trimethyl-Substituted l,3,5-Triaza-2-oxo-and 1.3.5-Triaza-2-thio-2/.4-phosphinane-4, 
  Reference    Z. Naturforsch. 48b, 860—866 (1993); eingegangen am 
  Published    1993 
  Keywords    6-diones, N M R Spectra, Mass Spectra, X-Ray 
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 TEI-XML for    default:Reihe_B/48/ZNB-1993-48b-0860.pdf 
 Identifier    ZNB-1993-48b-0860 
 Volume    48 
10Author    Michel Mégnamisi-Bélombé, Irene Jokwi, Emmanuel Ngameni, R. Obert Roux, Bernhard NuberRequires cookie*
 Title    X-Ray Structure, Electrochemical and Electronic Spectroscopic Examination of Cobaloximatic Acid: Hydro-fraw5-diiodobis(ethanedioximato(l-)-N,N')cobaltate(III). Extended Intermolecular O-H-O Bridging in the Solid  
 Abstract    The structure of the cobaloximatic acid, hydro-rrans-diiodobis(ethanedioximato(l-)-N,N')cobaltate(III), has been determined by X-ray diffraction. Crystal data: C4H7CoI2N40 4, Mr = 487.87; monoclinic space group P2xta (C|h); a -10.795(7), b = 9.003(7), c = 11.881(6) Ä; ß = 97.29(6)°; V = 1145.35 Ä3; Z = 4; dc = 2.83 Mg n r3. Rw (R) = 3.6 (3.9)% for 3064 observed independent reflections and 148 parameters. The coordination geometry around Com is a dis­ torted (4 + 2) octahedron of four chelating equatorial N atoms and two apical iodides. The compound is most adequately formulated as a monovalent strong acid: H(Co(GH)2I2) (GH_ = ethanedioximate or glyoximate). The H atoms of the oxime groups are involved in the usual mframolecular, as well as in much stronger internlolecular O -H -O bridgings (O — Ointramol = 2.613-2.631, O — Ointervo, = 2.454 Ä). The "acidic" H atom of each molecule participates in the intennolecular bridging which extends throughout the structure, and propagates nearly parallel to the [101] crystallographic direction. The redox properties of the present compound were examined by cyclic voltammetry in acetonitrile solution at room tem­ perature. Redox waves attributed to the reduction of Co11 1 and to the oxidation of T were ob­ served, along with a wave which may be linked to the reduction of the "acidic" proton. 
  Reference    Z. Naturforsch. 48b, 1360—1364 (1993); received May 17 1993 
  Published    1993 
  Keywords    X-Ray, Cobaloximatic Acid, Extended Hydrogen Bridging, Cyclic Voltammetry 
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 TEI-XML for    default:Reihe_B/48/ZNB-1993-48b-1360.pdf 
 Identifier    ZNB-1993-48b-1360 
 Volume    48 
11Author    KatteshV. Katti, PrahladR. Ad, CharlesL. Singh3c, KavitaK. Barnesb, Katti3, Karel Kopickad, AlanR. Ketringd, WynnA. VolkertcRequires cookie*
 Title    Organometallic Phosphinimines as Building Blocks for Potential New Radiopharmaceuticals. Synthesis, Structure and Reactivity of Ph3P=NH2+R e 0 4~  
 Abstract    of the organometallic phosphinimine Ph3P=N-SiMe3 (1), with aqueous R e0 4~ and 188R e 0 4~ yield the ion pairs Ph3P=NH2+M 04~ (M = Re (2); 188Re (4)). The ion pairs under­ go dehydration upon heating to produce the neutral Re(VII) species: Ph3P = N -M 03 (M = Re (3); 188Re (5)). The solid state structure of Ph3P=NH2+R e04~ (2) shows the presence of hy­ drogen bonding between the iminato hydrogen and the rhenium oxo center. The relevance of such reactions for the design of new radiopharmaceuticals is discussed. 
  Reference    Z. Naturforsch. 48b, 1381—1385 (1993); received January 15/June 181993 
  Published    1993 
  Keywords    Phosphinimines, Radiopharmaceuticals, X-Ray, Nuclear Medicine, Radio-Rhenium Reactions 
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 TEI-XML for    default:Reihe_B/48/ZNB-1993-48b-1381.pdf 
 Identifier    ZNB-1993-48b-1381 
 Volume    48 
12Author    Das, Ekkehard Flucka, G. Ernot, Heckm Annb, Karsten LangebRequires cookie*
 Title      
 Abstract    ',3 ,3 -T etrakis(dimethy lamino)-1 A5,3 A5-diphosphetium-Kation The 1,1 ',3,3'-Tetrakis(dimethylamino)-l/.5,3/l5-diphosphetium Cation 
  Reference    Z. Naturforsch. 48b, 1149—1150 (1993); eingegangen am 26. Februar 1993 
  Published    1993 
  Keywords    Ä5-l, 3-D iphosphetium C ation, N M R Spectra, X-Ray 
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 TEI-XML for    default:Reihe_B/48/ZNB-1993-48b-1149_n.pdf 
 Identifier    ZNB-1993-48b-1149_n 
 Volume    48 
13Author    Max Herberhold, Guo-Xin Jin, ArnoldL. RheingoldRequires cookie*
 Title    Sulfurization and Selenization of the Halfsandwich Nitrosylmetal Complexes Cp*M(CO)2NO (M = Cr, Mo) and Cp*M(NO)I2 (M = Mo, W)  
 Abstract    The photo-induced decarbonylation o f Cp*Cr(CO)2NO in acetonitrile solution in the presence o f excess sulfur leads to the cjW o-pentasulfido complex Cp*Cr(NO)(S5) (1 a), while in 
  Reference    Z. Naturforsch. 48b, 1488—1498 (1993); received June 8 1993 
  Published    1993 
  Keywords    Sulfido Metal Complexes, Selenido M etal Complexes, Halfsandwich Nitrosylmetal Com pounds, X-Ray 
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 TEI-XML for    default:Reihe_B/48/ZNB-1993-48b-1488.pdf 
 Identifier    ZNB-1993-48b-1488 
 Volume    48