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1Author    M. =. Cr, Mo, W., Norbert Kuhn, Martin Göhner, Manfred SteimannRequires cookie*
 Title    Über Komplexe des Typs {(PhC=C)3P}3M(CO)3 (M = Cr, Mo, W) On Complexes of the Type {(PhC=C)3P}3M(CO)3 (  
 Abstract    The tris(alkinyl)phosphine complexes {(PhC=C)3P}3M(CO)3, M = Cr (3a), Mo (3b), W (3c), are obtained from P(C=CPh)3 and (C6H 15N3)M(CO)3 (C6H 15N3 = 1,3,5-trimethyl-1,3,5-triazacyclohexane) as stable yellow solids in good yields. While IR data indicate significant acceptor properties of the phosphane ligands, the X-ray structure analysis of 3c also allows the discussion of weak donor interactions. 
  Reference    (Z. Naturforsch. 56b, 95—99 [2001]; eingegangen am 22. September 2000) 
  Published    2001 
  Keywords    Chromium, Molybdenum, Tungsten 
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 TEI-XML for    default:Reihe_B/56/ZNB-2001-56b-0095.pdf 
 Identifier    ZNB-2001-56b-0095 
 Volume    56 
2Author    HerbertW. Roesky, Michael Zimmer, Regine Herbst, GeorgeM. Sheldrick, Prof Heinz, G. WagnerRequires cookie*
 Title    N,N'-Bis(diphenyIphosphino)-S,S-dimethylsulfodiimin — ein Ligand für cyclische Übergangsmetallkomplexe N,N'-Bis(diphenylphosphino)-S,S-dimethylsulfodiimine — a Ligand for Cyclic Transition Metal Complexes  
 Abstract    Me 2 SN 2 P 2 Ph 4 M(CO) 4 complexes (1) (M: la Cr, lb Mo, lc W) have been synthesized from Me 2 S(NPPh 2) 2 and C 7 H s M(CO) 4 . la—lc are stable at room temperature, lb crystallizes in the space group P2,2,2 with cell constants a = 2486.3(2); b = 1488.8(1); c = 882.0(1) pm. 
  Reference    Z. Naturforsch. 43b, 933—936 (1988); eingegangen am 26. Februar 1988 
  Published    1988 
  Keywords    Crystal Structure, Chromium, Molybdenum, Tungsten 
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 TEI-XML for    default:Reihe_B/43/ZNB-1988-43b-0933.pdf 
 Identifier    ZNB-1988-43b-0933 
 Volume    43 
3Author    Henri Brunner1, ManfredM. Uschiol3, Thomas Neuhierl3, Bernhard NuberbRequires cookie*
 Title    Copper Complexes with the Ligand [Cp2MoH2]  
 Abstract    The reaction of CuCl with [CP2M0H2] yields the complex [Cu(Cp2M oH2)2Cl]. An X-ray structure analysis shows that the coordination of the copper(I) ion by two [CP2M0H2] lig­ ands and the chloride ion is pseudo-trigonal planar. The hydride ligands were located by using difference Fourier methods. A manifold of reactions took place when an aqueous so­ lution of CUSO4 was treated with a solution of [Cp2M oH 2] in dichloromethane in a 1:2 molar ratio. The X-ray structure analysis established a polymeric structure of the complex [Cu(Cp2MoH2)2Cu(Cp2M oH2)S0 4 ]" with two different copper centers. 
  Reference    Z. Naturforsch. 54b, 337—340 (1999); received September 25 1998 
  Published    1999 
  Keywords    Copper, Molybdenum, X-Ray Data 
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 TEI-XML for    default:Reihe_B/54/ZNB-1999-54b-0337.pdf 
 Identifier    ZNB-1999-54b-0337 
 Volume    54 
4Author    A.B M Sham, Rahm An, H. Boiler, K. O. KleppRequires cookie*
 Title    Synthesis and Spectroscopic Investigations of New Linear Heterobimetallic Clusters [Me4N]3[(TOS3 )2Ag] (T = Mo, W). Crystal Structure of [Me4N]3[(MoOS3 )2 Ag]  
 Abstract    Red-brown crystals of a new bis(thiomolybdate) complex [Me4N]3[(MoOS3)2Ag] were formed at room temperature through the reaction of a solution of [Me4N]2[MoOS3] in MeCN with solid AgCN. They are monoclinic, space group P2i/c with unit cell parameters a = 16.662(9), b = 9.464(3), c = 17.890(8) A, /3 = 101.87(2)°, Z = 4. The crystal structure was determined from single crystal diffractometer data (MoKa-radiation) and refined to R = 0.044 (3614 reflections, 236 variable parameters). The structure is characterized by trinuclear complex anions, [(MoOS3)2Ag]3~. According to Weissenberg investigations the homologous tungsten compound is isostructural. The infrared spectrum of the molybdenum complex (KBr powder) shows absorption bands at 884 (vs) and 871 (w) cm-1 (terminal i/(Mo-0)), 483 (vs) cm-1 (terminal i/(Mo-S)), 451 (vs), and 435 (w) cm-1 (bridging i/(Mo-S)). The tungsten complex showed bands at 901 (vs) cm-1 (terminal ^(W-O)), 478 (vs) cm-1 (terminal u(W-S)), and 435 (vs) cm-1 (bridging ^(W-S)). The anionic mass spectra shows molecular ion peaks at m/z 524 and 700 for [(MoOS3)2Ag]_ and [(WOS3)2Ag]~, respectively, as well as peaks for other fragments. 
  Reference    Z. Naturforsch. 55b, 238—242 (2000); received Oktober 10 1999 
  Published    2000 
  Keywords    IR Data, Chalcogenides, Molybdenum, Tungsten 
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 TEI-XML for    default:Reihe_B/55/ZNB-2000-55b-0238.pdf 
 Identifier    ZNB-2000-55b-0238 
 Volume    55 
5Author    Hans-Ulrich Meisch, JohannesA. Schmitt, Wolfgang ReinleRequires cookie*
 Title    Schwermetalle in Höheren Pilzen, III * Vanadium und Molybdän Heavy Metals in Higher Fungi, III. Vanadium and Molybdenum  
 Abstract    In several series of 212 samples, higher fungi, especially from the genus Amanita and related genera, were analyzed by atomic absorption spectroscopy on their content of the trace metals vanadium and molybdenum. Only vanadium was found to be present in high concentration in the fly agaric mushroom (Amanita muscaria), while 22 of its related species showed the normal V-content of the higher fungi tested. A correlation with the presence of molybdenum could not be detected. A special enrichment of Mo was not found in higher fungi. The analysis of several fruit bodies from A. muscaria showed that the highest V-content was present in the bulb and in the lamellae, both contents increasing with age, while the spores contained only 1 — 2% of the lamellar vanadium. 
  Reference    Z. Naturforsch. 33c, 1 (1978); eingegangen am 12. Dezember 1977/11. Januar 1978 
  Published    1978 
  Keywords    Vanadium, Molybdenum, Higher Fungi, Amanitaceae 
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 TEI-XML for    default:Reihe_C/33/ZNC-1978-33c-0001.pdf 
 Identifier    ZNC-1978-33c-0001 
 Volume    33 
6Author    Requires cookie*
 Title    Reaktionen von Metallcarbonylen mit Diazirin1  
 Abstract    W o l f g a n g B e c k u n d W o l f g a n g D a n z e r Pentamethylendiazirine (N = N) has been found in metal carbonyl compounds as a monodentate two electron ligand (7t-CH3C5H 4Mn(CO)2 N = N , (OC)sW N = N) or as a 
  Reference    (Z. Naturforsch. 30b, 716—719 [1975]; eingegangen am 2. Juni 1975) 
  Published    1975 
  Keywords    Diazirine Carbonyl Complexes, Manganese, Iron, Molybdenum, Tungsten 
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 TEI-XML for    default:Reihe_B/30/ZNB-1975-30b-0716.pdf 
 Identifier    ZNB-1975-30b-0716 
 Volume    30 
7Author    J. 0. Besenhard, H. Meyer, R. SchöllhornRequires cookie*
 Title    Defined Intercalation Stages from Cathodic Reduction of MOS2 in Organic Electrolytes  
 Abstract    Cathodic reduction of M0S2 in DMSO electrolytes containing alkali cations A+ results in the formation of defined ternary phases A+o.i25 (DMSO) y [MoS2] 0125_ with highly mobile solvated interlayer cations. Reduction of M0S2 in DME electrolytes yields similar products. Basal spacings are dependant on solvent type and on ionic radius of A+. Further reduction of these compounds is associated with irreversible processes. 
  Reference    (Z. Naturforsch. 31b, 907—911 [1976]; received March 19 1976) 
  Published    1976 
  Keywords    Molybdenum, Intercalation Compounds, Cathodic Reduction, Organic Electrolytes 
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 TEI-XML for    default:Reihe_B/31/ZNB-1976-31b-0907.pdf 
 Identifier    ZNB-1976-31b-0907 
 Volume    31 
8Author    Richard Korswagen, Klaus Weidenhammer, ManfredL. ZieglerRequires cookie*
 Title    Darstellung und Charakterisierung von "Nitrenkomplexen"  
 Abstract    des Molybdän und Wolfram der Zusammensetzung [(^-C5H5)OM]2(/*-NCOOC2H5)2 (M = Mo, W) und [(^-C5H5)0Mo]2(^-NC02C2H5)(^-0) Synthesis and Characterization of "Nitrene Complexes" of Molybdenum and Tungsten of Composition [(^-C5H5)0M]2(/<-NC02C2H5)2 (M = MO, W) and [(^-C5H5)0Mo]2(^-NC00C2H5)Gu-0) The photolytical reactions of 7? 5 -C5H5Mo(CO)3CH3 (1) or 7? 5 -C5H5W(CO)3CH3 (2) with N3C02C2H5 (3) in CH2C12 yield the "nitrene" complexes [(^-CsHsJMoOJ^-NCC^Hsfe (4), [(r? 5 -C5H5)W0]2(/u-NC02C2H5)2 (5) and [(^-CsHsJMoOM^-NCO^HsM^-O) (6) together with some *? 5 -C5H5Mo(CO)3Cl (7) and ^ 5 -C5H5W(CO)3Cl (8), proving that the solvent takes part in the reaction. Compounds 4, 5 and 6 contain bridging imido groups, arising from the capture of probably free nitrenes NC02C2Hs by organometallic species. Evidence for the presence of free nitrenes in the reaction medium is provided by the isolation of urethane (9), tetrachlorethene (10), 7 and 8 as secondary products. 
  Reference    Z. Naturforsch. 34b, 1507—1511 (1979); eingegangen am 28. Juni/13. August 1979 
  Published    1979 
  Keywords    Synthesis, Characterization of Nitrene Complexes, Molybdenum 
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 TEI-XML for    default:Reihe_B/34/ZNB-1979-34b-1507.pdf 
 Identifier    ZNB-1979-34b-1507 
 Volume    34 
9Author    Anke Brauel, Dieter RehderRequires cookie*
 Title    Ein neuer Weg zur Darstellung der Nitrosylkomplexe CpM(CO) 2 NO (M = Cr/Mo/(W)) durch NO/CO-Austausch zwischen [Co(NO) 2 Hal] 2 und Carbonyl-cyclopentadienylkomplexen* A Novel Route to the Nitrosyl Complexes CpM(CO) 2 NO (M = Cr/Mo/(W)) by NO/CO Exchange between [Co(NO) 2 Hal] 2 and Carbonyl-cyclopentadienyl Complexes  
 Abstract    The title compounds have been prepared by NO transfer from [Co(NO)iHal] 2 (Hal = Cl, Br, I) to [CpM(CO) 3 ] 2 , CpM(H)(CO) 3 and [CpM(CO) 3 ]" (M = Cr, Mo, W; Cp = ?7 5 -C 5 H 5). In the case of the neutral complexes, the reactions need initiation and support by light; the anionic complexes are nitrosylated in a dark reaction. The highest yields (60%) are obtained from the reactions between [Co(NO) 2 Br] 2 and [CpM(CO) 3 ] 2 (M = Cr, Mo). 
  Reference    Z. Naturforsch. 42b, 605—609 (1987); eingegangen am 26. November 1986/7. Januar 1987 
  Published    1987 
  Keywords    Nitrosyltransfer, Carbonyl-Nitrosyl Complexes, Chromium, Molybdenum, Tungsten 
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 TEI-XML for    default:Reihe_B/42/ZNB-1987-42b-0605.pdf 
 Identifier    ZNB-1987-42b-0605 
 Volume    42 
10Author    Uwe Scholz, Mathias Noltemeyer, HerbertW. RoeskyRequires cookie*
 Title    Synthese und Struktur eines ungewöhnlichen Molybdän-Heterocyclus durch Substitution eines Phenylringes in ortho-Stellung Synthesis and Structure of an Unusual Molybdenum Heterocycle by Substitution of a Phenyl Ring in ortho-Position  
 Abstract    The new ligand (Me 3 Si) 2 NC(Ph)NP(Ph) 2 N(SiMe 3) (1) reacts with MOOC1 4 to yield the green metallacycle 4. 4 was characterized by X-ray diffraction. Crystals of 4 are monoclinic, space group P2,/n with a = 1061.2(10). b = 1590.5(10), c = 1737.4(20) pm, ß = 104.84(7)° and Z = 4. Mo is coordinated octahedrally by two nitrogens of the bifunctional ligand. by one oxygen and three chlorine atoms. The ligand undergoes cyclization, a bond being formed between N and one phenylic o-position. 
  Reference    Z. Naturforsch. 43b, 937—940 (1988); eingegangen am 23. März 1988 
  Published    1988 
  Keywords    X-Ray, Molybdenum, Heterocycle Phosphorus-Nitrogen Compound 
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 TEI-XML for    default:Reihe_B/43/ZNB-1988-43b-0937.pdf 
 Identifier    ZNB-1988-43b-0937 
 Volume    43 
11Author    K. Endrich, P. Alburquerque, R. P. Korswagen, M. L. ZieglerRequires cookie*
 Title    Über die Reaktionen von Phosphoryliden mit homodinuklearen Organometallverbindungen des Molybdän und Wolfram On the Reaction of Phosphorylides with Homodinuclear Organometallic Compounds of Molybdenum and Tungsten  
 Abstract    We report first the complete study of the reactions of [CpMo(CO) 2 ]^ (Mo=Mo) (1, Cp = ?7 5 -C,H s) with salt-free phosphorus ylides Ph,P=CHR (2, Ph = QH,; R = H (2a), CH, (2b), C,H 7 (2c), C 6 H s (2d)) and with the Nal-adducts of the ylides Ph,P=CMe, (Me = CH,), PhMe 2 P=CH 2 and (PhO) 3 P=CH 2 . With 2, products of the type Cp(CO) 2 LMo-MoL(CO) 2 Cp (7, L = ylide) were obtained, and the salt adducts gave addition compounds of the type Cp(CO) 2 LMo-MoL(CO) 2 Cp-2NaI (12, L = ylide). These very reactive products represent novel bisphosphonioalkyl complexes, and were characterized by IR, mass and 'H NMR spec-trometry. The reaction of 1 with hexaphenylcarbodiphosphorane, C(PPh,) 2 , leads to a novel double addition product, Cp 2 Mo 2 (CO) 4 [C(PPh,) 2 ] 2 (14). Some reactions of compounds 7, 12 and 14 were also studied; 7d (L = CHPh —PPh,) reacts with NaNH 2 yielding ammonia and the disodium salt of the novel dianionic complex [CpMo(CO) 2 (CPh-PPh,)]^ 2 ~ (15); 7a (L = CH 2 —PPh,) reacts with CH,I forming CpMo(CO),CH, and traces of CpM~o(CO) 2 (PPh,)I; all compounds of types 7,12 and 14 react with adsorbents (Silica-gel, A1 2 0,, etc.); thus chromatogra-phy is impossible, even under strict protection from air and humidity. A study of the processes occurring during chromatography under various conditions and the resulting products are also reported and discussed. [CpW(CO),] 2 (18) reacts with 2 a forming also a bisphosphonioalkyl complex [CpW(CO) 2 L] 2 (L = CH 2 =PPh 3); in this case, the ylide substitutes two carbonyl groups in 18. The compounds [Cp*M(CO) 2 ] 2 (M^M) (Cp* = C 5 Me 5 ; M = Cr, W) apparently do not react with phosphorous ylides; the corresponding Mo compound, [Cp*Mo(CO) 2 ] 2 , does react, but only the new mono-nuclear complex Cp*Mo(CO) 2 (PPh,)Cl (22) could be isolated. 
  Reference    Z. Naturforsch. 43b, 1293—1306 (1988); eingegangen am 29. März/16. Juni 1988 
  Published    1988 
  Keywords    Phosphorylides, Homodinuclear Organometallic Compounds, Molybdenum, Tungsten 
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 TEI-XML for    default:Reihe_B/43/ZNB-1988-43b-1293.pdf 
 Identifier    ZNB-1988-43b-1293 
 Volume    43 
12Author    İzzetA. Mour, Saim Ozkar, CorneliusG. KreiterRequires cookie*
 Title    Synthesis and Spectroscopic Studies of Pentacarbonylfumaronitrile-chromium(O), -molybdenum(O), and -tungsten(O)  
 Abstract    Photolysis of hexacarbonyl-chromium(O), -molybdenum(O), and -tungsten(O) in presence of fumaronitrile yields at room tem perature pentacarbonyl-fumaronitrile-chromium(O) (1), -molybdenum(O) (2), and -tungsten(O) (3). The complexes were purified by crystallization and characterized by IR and 13C-NM R spectroscopy. The fumaronitrile ligand is bonded to the M (CO)5 moiety by one nitrile nitrogen atom rather than by the carbon-carbon double bond. In toluene 2 dissociates into fumaronitrile and pentacarbonyl-molybdenum(O), which is stabi­ lized by the solvent. Fumaronitrile and solvated pentacarbonyl-molybdenum(O) exist in solu­ tion together with 2 in an equilibrium which lies in favour of the former species. 
  Reference    Z. Naturforsch. 49b, 1059—1062 (1994); eingegangen am 13. April 1994 
  Published    1994 
  Keywords    Chromium, Molybdenum, Tungsten, Carbonyl, Fumaronitrile Complexes 
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 TEI-XML for    default:Reihe_B/49/ZNB-1994-49b-1059.pdf 
 Identifier    ZNB-1994-49b-1059 
 Volume    49 
13Author    H. Szillat, Hk Müller-BuschbaumRequires cookie*
 Title    Synthesis and Crystal Structure of (Cu,Zn)3 7 5 Mo30 12  
 Abstract    Single crystals of (Cu,Zn)3 75Mo30 12 have been prepared by crystallization from melts and investigated by X-ray diffractometer techniques. (Cu,Zn)3 75Mo3Oi2 crystallizes orthorhom-bically, space group D^-P212,21, Z = 4, a = 17.947(9), b = 5.092(3), c = 10.685(5) A. It is isotypic to Cu385Mo30 12. All molybdenum atoms are tetrahedrally coordinated by oxygen atoms. There are layers of C u 0 6 and Z n 0 6 octahedra, while other metal sites are occupied by copper in a deformed prismatic coordination with one oxygen atom at a remarkably greater distance from copper than the other five. Some of the zinc atoms occupy positions in chains of face-sharing octahedra with an occupancy factor of 0.75. The crystal structure is discussed with respect to the isotypic compound Cu385Mo30 12 and compounds of the type CuLnMo20 8. 
  Reference    Z. Naturforsch. 50b, 247—251 (1995); eingegangen am 13. September 1994 
  Published    1995 
  Keywords    Crystal Structure, Copper, Molybdenum, Zinc, Oxide 
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 TEI-XML for    default:Reihe_B/50/ZNB-1995-50b-0247.pdf 
 Identifier    ZNB-1995-50b-0247 
 Volume    50 
14Author    H. Szillat, Hk Müller-BuschbaumRequires cookie*
 Title    Uber das Oxomolybdat AgKCu3Mo4Oi6 mit Silber in siebenfacher Koordination About the Oxomolybdate AgKCu3Mo4O i6 with Silver in Seven-Fold Coordination  
 Abstract    Single crystals of AgKCu3Mo40 16 have been prepared by crystallization from melts and investigated by X-ray diffractometer techniques. This compound crystallizes with monoclinic symmetry, space group C |h-P 2 Je, a = 5.056(1), b = 14.546(4), c = 19.858(9) Ä, ß = 86.64(5)°, Z = 4. The crystal structure of AgKCu3Mo40 16 is closely related to K2Cu3Mo40 16 showing ribbons of edge-sharing C u 0 6 and AgÖ7 polyhedra. The ribbons are linked by tetrahedrally coordinated molybdenum and K2O 10 groups. Another kind of M o 0 4 tetrahedra occupies the cavities inside the ribbons. The crystal structure and the coordination of silver, copper, potas­ sium and molybdenum by oxygen are discussed with respect to K2Cu3Mo40 16. 
  Reference    Z. Naturforsch. 50b, 252—256 (1995); eingegangen am 19. September 1994 
  Published    1995 
  Keywords    Crystal Structure, Copper, Silver, Molybdenum, Potassium 
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 TEI-XML for    default:Reihe_B/50/ZNB-1995-50b-0252.pdf 
 Identifier    ZNB-1995-50b-0252 
 Volume    50 
15Author    H. Szillat, Hk Müller-BuschbaumRequires cookie*
 Title    Zur Kristallchemie eines neuen Oxomolybdats: Cu2YbMo30 12 On the Crystal Chemistry of a New Molybdenum Oxide: Cu2YbM o30 12  
 Abstract    Single crystals of Cu2YbMo30 12 have been prepared by crystallization from melts and investigated by X-ray diffractometer techniques. Cu2YbMo30 12 crystallizes with monoclinic symmetry (space group C 2h -P 12i/m l, a = 5.162(2), b = 10.885(4), c = 8.699(4) A. ß -95.73(7)°, Z = 2), forming a new structure type. Typical features are layers of C u 0 6 octahedra, connected via corners and edges. These layers are linked by molybdenum and ytterbium ions along [001]. The crystal structure as well as the coordination of copper, ytterbium and molybdenum and the oxidation states of copper and molybdenum are discussed with respect to the related but not isotypic compound (Cu,Zn)3 75Mo30 12. 
  Reference    Z. Naturforsch. 50b, 257—260 (1995); eingegangen am 19. September 1994 
  Published    1995 
  Keywords    Crystal Structure, Copper, Molybdenum, Ytterbium, Oxide 
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 TEI-XML for    default:Reihe_B/50/ZNB-1995-50b-0257.pdf 
 Identifier    ZNB-1995-50b-0257 
 Volume    50 
16Author    Thomas Schmidt, Stephan Neis, Richard GoddardRequires cookie*
 Title    Synthesis, Structure, and Properties of Homoleptic l-Oxa-l,3-diene Molybdenum and Tungsten Complexes  
 Abstract    Homoleptic tris(l-oxa-l,3-diene)m olybdenum and tungsten complexes are formed as yel­ low, crystalline compounds in 54-80% isolated yield on treatm ent of the corresponding /3-unsubstituted a,/3-unsaturated ketones with W (CO)3(CH 3CH 2CN)3 or (y6-C6H 6)M o(CO)3 in refluxing hexane. Reaction of these oxadienes with (^6-C6H 5CH3)2Mo in tetrahydrofuran or /7-hexane provides a new high yield route to homoleptic molybdenum complexes that are otherwise difficult to prepare. X-ray crystal structure analyses of two air-stable, isomeric tungsten complexes reveal a significant contribution of a cr2,?/2-bonding mode in the coordi­ nated oxadiene moieties. U nder reaction conditions that allow the platinum catalyzed hydro­ genation of phenyl substituents in these ligands, the coordinated oxadiene fragments are inert, thus demonstrating an unprecedented chemoselectivity in the hydrogenation of aryl-substituted enones. On the other hand, the complexes are labile enough to catalyze the cyclotrimerization of alkynes such as methyl propiolate. 
  Reference    Z. Naturforsch. 50b, 315—325 (1995); received September 7 1994 
  Published    1995 
  Keywords    Oxadiene Complex, Molybdenum, Tungsten, X-Ray, Selective Hydrogenation 
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 TEI-XML for    default:Reihe_B/50/ZNB-1995-50b-0315.pdf 
 Identifier    ZNB-1995-50b-0315 
 Volume    50 
17Author    H. Szillat, Hk Müller-BuschbaumRequires cookie*
 Title    On the Oxocuprate (C u,C o)375Mo30 12  
 Abstract    Single crystals of (C u,C o)3 7?Mo30 12 have been prepared by recrystallization from melts and investigated by X-ray diffractometer techniques. TTie compound crystallizes with ortho-rhombic symmetry, space group D'2 6 h-P n m a , a = 5.092(1), b = 10.624(3), c = 17.804(4) A, Z = 4 and is isotypic to NaCo2.3iMo30 12. The crystal structure is discussed and it is shown, that the trigonal prismatically coordinated copper positions are occupied in a different m an­ ner. One of the alternate sites is beside the centre of the prisms, and the other one is shifted towards one of the faces of the rectangular prism. This detail may be interpreted by assigning the valance states C u1 and Cu11. The M 0 6 octahedra are occupied statistically by copper and cobalt. 
  Reference    Z. Naturforsch. 50b, 707—711 (1995); eingegangen am 10. O ktober 1994 
  Published    1995 
  Keywords    Crystal Structure, Copper, Cobalt, Molybdenum, Oxide 
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 TEI-XML for    default:Reihe_B/50/ZNB-1995-50b-0707.pdf 
 Identifier    ZNB-1995-50b-0707 
 Volume    50 
18Author    H. Szillat, Hk Müller-BuschbaumRequires cookie*
 Title    Zur Darstellung und Kristallstruktur eines neuen Kupfer-Antimon-Oxomolybdats: CuSbMo20 8 On the Synthesis and Crystal Structure of a New Copper Antimony Oxomolybdate: CuSbMo20 8  
 Abstract    Single crystals of the hitherto unknown com pound CuSbMo2O s were prepared by recrys­ tallization from melts in closed copper tubes and investigated by X-ray diffractometer techni­ que. CuSbMo^Os crystallizes in a new structure type with monoclinic symmetry, space group q ? h-I 1 2 /a l, a = 5.554(2), b = 4.916(1), c = 21.519(4) Ä, ß = 93.42(3)°, Z = 4. The crystal structure shows Sb111 in a one-sided coordination by four oxygen. Molybdenum shows the rare octahedral coordination by oxygen. M o 0 6 and C u 0 6 octahedra form triple layers stacked and connected by Sb ions along [001], 
  Reference    Z. Naturforsch. 50b, 717—720 (1995); eingegangen am 12. O ktober 1994 
  Published    1995 
  Keywords    Crystal Structure, Copper, Antimony, Molybdenum, Oxide 
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 TEI-XML for    default:Reihe_B/50/ZNB-1995-50b-0717.pdf 
 Identifier    ZNB-1995-50b-0717 
 Volume    50 
19Author    KatrinA. Köhler, H. Lexander Steiner, W. Erbert, RoeskyRequires cookie*
 Title    Die Kristallstrukturen von (j75-C5Me5)MoMe4 und (j75-C5Me5)WMe4 The Crystal Structures of (?75-C5Me5)M oMe4 and (^5-C5Me5)W M e4  
 Abstract    The crystal structures of (/75-C5Me5)MoMe4 1 and (j/5-C5Me5)WMe4 2 are reported. 1 and 2 crystallize in the orthorhom bic space group Pbcm with the lattice param eters a = 681.4(2) pm, b = 1538.6(6) pm, c = 1402.4(6) pm with 4 units per cell (1), and a = 684.99(6) pm, b = 1547.3(2) pm, c = 1405.5(2) pm with 4 units per cell (2). Both compounds are monomeric and have a square-pyramidal geometry. 
  Reference    Z. Naturforsch. 50b, 1207—1209 (1995); eingegangen am 20. Januar 1995 
  Published    1995 
  Keywords    Molybdenum, Tungsten, Alkyl Complexes, Crystal Structures 
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 TEI-XML for    default:Reihe_B/50/ZNB-1995-50b-1207.pdf 
 Identifier    ZNB-1995-50b-1207 
 Volume    50 
20Author    C. Ogric, W. Schütt, T. Lehotkay, E. Herdtweck, F. R. KreißlRequires cookie*
 Title    Umwandlung von ?72-Thiocarbenkomplexen des Molybdäns und Wolframs in Metalla-thia-cyclopropan-Systeme Conversion of ?/2-Thiocarbene Complexes of M olybdenum and Tungsten to Metalla-thio-cyclopropane Systems  
 Abstract    Cationic ^2-thiocarbene complexes of molybdenum and tungsten [Cp(CO)2M =C(R)S-Me][BF4] (M = Mo, W; R = Ph, Tol; L = CO, PM e3) react with the germylene G e{N('Bu)CH 2CH2N('Bu)}, the plumbylene Pb{N(SiM e3)2}2, or with sodium azide and sodium thiosulfate to give neutral metalla-thia-cyclopropane com plexes C p(CO)2-M -C(R)(SM e)SM e. Instead of the expected cycloaddition or substitution reactions the formal addition of thiomethanolat at the carbene carbon atom is observed. On treating the corre­ sponding trimethylphosphine substituted /;2-thiocarbene com plex of molybdenum [Cp(CO)(PM e3)M o=C(Tol)SM e][BF4] with diethylamine or N,N,N',N'-tetramethylguanidine a cationic molybda-thia-cyclopropane system is formed. The products have been characteri­ zed by 'H, 13C, 31P NMR, IR and mass spectra. The crystal structure of 5a has been determin­ ed; space group with a = 1340,4(2), b -1097,7(1), c = 1101,8(5) pm and Z = 4. 
  Reference    Z. Naturforsch. 50b, 1839—1844 (1995); eingegangen am 11. Mai 1995 
  Published    1995 
  Keywords    ?72-Thiocarbene Complexes, Molybdenum, Tungsten, Carbon Sulfur Coupling 
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 Identifier    ZNB-1995-50b-1839 
 Volume    50