| 3 | Author
| HerbertW. Roesky, Ulrich Seseke, Mathias Noltemeyer, GeorgeM. Sheldrick | Requires cookie* | | Title
| Darstellungen und Strukturen viergliedriger Metall-Stickstoff-Ringe Preparations and Structures of Four-Membered Metal-Nitrogen Rings  | | | Abstract
| Ph 3 P=NSiMe 3 (1) reacts with InCl 3 , SnCl, and FeCl, to yield (Ph,P=N) 2 (InCl 2) 2 • 2 DMF (2a), (Ph 3 P=N) 2 Sn 2 Cl 4 • 2 CH 3 CN (3a) and (Ph 3 P=N) 2 (FeCl 2) 2 (4). The X-ray single crystal structures of 2a, 3a and 4 are reported. The compounds form four-membered rings consisting of alternating metal and nitrogen atoms. 2a and 4 are symmetrical, but 3a has both a Sn(II)Cl and a Sn(IV)Cl 3 group in the four-membered ring. | | |
Reference
| Z. Naturforsch. 43b, 1130—1136 (1988); eingegangen am 29. März 1988 | | |
Published
| 1988 | | |
Keywords
| Indium, Tin, Iron, X-Ray | | |
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| default:Reihe_B/43/ZNB-1988-43b-1130.pdf | | | Identifier
| ZNB-1988-43b-1130 | | | Volume
| 43 | |
6 | Author
| Helmut Behrens, Anton Jungbauer | Requires cookie* | | Title
| Über die Reaktionen von ein-und zweikernigen, kationischen ?/ 5 -Cyelopentadienyl-carbonyl-Komplexeii des Eisens, Rutheniums und Osmiums mit flüssigem Ammoniak [1] On the Reactions of Mono-and Dinuclear, Cationic ^-Cyclopentadienyl Carbonyl Complexes of Iron, Ruthenium and Osmium with Liquid Ammonia [1]  | | | Abstract
| The covalent carbamoyl compounds 7?5.c5H5Ru(CO)(L)(CONH2) (L = CO, MeCN, MeNC, PPh3, PEt3) and ^-CsHsOsfCOMCONI^) are formed by the reactions of the cationic complexes [7?5.C5H5Ru(CO)2(L)]+ (L = CO, MeCN, MeNC, PPh3, PEt3) and [^ 5 -C5H5Os(CO)3]+ with liquid NH3 below 10 °C. In contrast, the reaction of [^ 5 -C5H5Ru(CO)2(r? 2 -C2H4)]PF6 with liquid NH3 yields the quarternary ammonium salt | | |
Reference
| Z. Naturforsch. 34b, 1477—1486 (1979); eingegangen am 3. August 1979 | | |
Published
| 1979 | | |
Keywords
| ^-Cyclopentadienyl Carbamoyl Carbonyl Complexes, Iron, Ruthenium, Osmium | | |
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| default:Reihe_B/34/ZNB-1979-34b-1477.pdf | | | Identifier
| ZNB-1979-34b-1477 | | | Volume
| 34 | |
7 | Author
| JaapN. Louwen, Jaap Hart, DerkJ. Stufkens, Ad Oskam | Requires cookie* | | Title
| The Hei and HeH Photoelectron Spectra of [Fe*? 3 -C3H5(CO)3X] and [Fe^ 3 -C4H7 (CO)3X] (X = Cl, Br, I) and [CoC3H5(CO)3]  | | | Abstract
| By means of UV photoelectron spectroscopy (UPS) the electronic structures of [Fe^3.C3H5(CO)3X], [Fe^3-(2-CH3C3H4)(CO)3X] (X = Cl, Br, I) and [Co(C3H5)(CO)3] have been studied. Detailed assignments are possible and surprisingly low ionization energies (as low as 8.19 eV) are found for iodine lone pair type Orbitals. From the spectra a large difference in n backbonding is found between the cobalt and iron complexes. | | |
Reference
| Z. Naturforsch. 37b, 179—185 (1982); received September 29 1981 | | |
Published
| 1982 | | |
Keywords
| Photoelectron Spectra, Iron, Cobalt, Allyl Complexes | | |
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| default:Reihe_B/37/ZNB-1982-37b-0179.pdf | | | Identifier
| ZNB-1982-37b-0179 | | | Volume
| 37 | |
8 | Author
| F.-DM. Artin, H.K M Üller-B, Uschbaum | Requires cookie* | | Title
| Eine synthetische Spezies zum Mineral Howardevansit mit Eisen anstelle von Kupfer: NaFe3V 30 12  | | | Abstract
| Single crystals of NaFe3V30 12 have been prepared by solid state reaction below the melt ing point of the reaction mixture. This compound is isotypic to the mineral Howardevansite but shows lower triclinic symmetry, space group C }-P 1 , a = 6.757(2), b = 8.155(2), c = 9.816(3) Ä, a = 106.05(2), ß = 104.401(9), y = 102.09(2)°, Z = 2. The acentric space group is caused by the sodium positions, all other atoms comply with the space group PI of Howarde vansite. The different ions are coordinated by O2-forming V 0 4 tetrahedra, FeOfi octahedra, trigonal FeOs bipyramids and irregular NaOs and NaOy polyhedra, respectively. The crystal chemistry is discussed with respect to Howardevansite. | | |
Reference
| (Z. Naturforsch. 50b, 51—55 [1995]; eingegangen am 5. August 1994) | | |
Published
| 1995 | | |
Keywords
| Sodium, Iron, Vanadium, Oxide, Crystal Structure | | |
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| default:Reihe_B/50/ZNB-1995-50b-0051.pdf | | | Identifier
| ZNB-1995-50b-0051 | | | Volume
| 50 | |
9 | Author
| Wolfgang Pohl, Ingo-Peter Lorenz, Heinrich Nöth, Martin Schmidt | Requires cookie* | | Title
| Offene und geschlossene Triferriophosphonium-Salze und Triferriophosphane O pen and Closed Triferriophosphonium Salts and Triferriophosphines  | | | Abstract
| The reaction of P(SiM e3)3 with an excess of C pFe(CO)2X (X = Cl, Br) through the action o f water gives the triferriophosphonium salt [{CpFe(CO)2}3PH]2FeX4 together with ferrocene as by-product. The cation of the salt can be deprotonated by D B U to afford the unstable triferriophosphine {CpFe(CO)2}3P. Its subsequent realkylation with RX (R = Me, CH2Ph; X = I, Br) leads to alkyltriferriophosphonium salts [{CpFe(CO)2}3PR]X. Photolysis of [{CpFe(CO)2}3PH]2FeX 4 induces the elimination of one CO group, and the CO-bridged and partly closed complex [{//-CO(CpFeCO)2}{CpFe(CO)2}PH]2FeX 4 is formed, the cation of which can also be deprotonated to give the corresponding m onobridged phosphine (w-CO(CpFeCO)2}{CpFe(CO)2}P. Both PH-phosphonium salts undergo a hydrogen-chlorine exchange reaction to give the P -C l analogues [{CpFe(CO)2}3PCl]2FeX4 and [{//-CO (CpFeCO)2}{CpFe(CO)2}PCl]2FeX 4. The IR and NM R spectra of all species as well as the X-ray structure analyses of the open and closed P -H functional com plexes are reported and discussed. | | |
Reference
| Z. Naturforsch. 50b, 1485—1493 (1995); eingegangen am 30. März 1995 | | |
Published
| 1995 | | |
Keywords
| Iron, Tristrimethylsilylphosphine, Hydrogen Chlorine Exchange, X-Ray, Decarbonylation | | |
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| default:Reihe_B/50/ZNB-1995-50b-1485.pdf | | | Identifier
| ZNB-1995-50b-1485 | | | Volume
| 50 | |
10 | Author
| O. Sedello, Hk Müller-Buschbaum | Requires cookie* | | Title
| Ein Oxometallat mit eindimensional flächenverknüpften Oktaederketten Synthesis and Crystal Structure of (C u,Fe)363M o3O i2. An Oxom etallate Showing One-Dimensional Chains of Face Sharing Octahedra  | | | Abstract
| Single crystals of (C u ,F e)3-63M o30 12 have been prepared by crystallisation from melts. X-ray investigations lead to orthorhombic symmetry, space group D : 2-P 2 12121, a = 5.0952(8), b = 10.637(2), c = 17.881(3) A , Z = 4. (C u ,F e)363M o3O i2 is isotypic to Cu385M o30 12 or (C u,Z n)3 75M o30 12. M olybdenum shows tetrahedral coordination by oxygen. Cu+ and Fe2+ are probably distributed statistically over four different point positions. Interesting features of the crystal structure are one-dim ensional chains of face shared (C u ,F e)0 6 octahedra. S y n t h e s e u n d K r i s t a l l s t r u k t u r v o n (C u , F e) 3 ,63 M o 3 0 12. | | |
Reference
| (Z. Naturforsch. 51b, 90—9 [1996]; eingegangen am 20. Juni 1995) | | |
Published
| 1996 | | |
Keywords
| Copper, Iron, M olybdenum, Oxide, Crystal Structure | | |
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| default:Reihe_B/51/ZNB-1996-51b-0090.pdf | | | Identifier
| ZNB-1996-51b-0090 | | | Volume
| 51 | |
11 | Author
| B. W. Edel, HkM. Üller-B, Uschbaum | Requires cookie* | | Title
| Über die Kristallstrukturen der Tellurate Pb3Fe2Te20 12 und Pb2CoTe06  | | | Abstract
| Pb3Fe2Te20 |2 (I) and Pb2C oT e06 (II) have been prepared by crystallization from melts. Single crystal X-ray investigations led to monoclinic (I) and tetragonal (II) symmetry, space groups Cs-Cc and D{J-I4/mmm. Lattice constants I: a = 9.866(3), b = 15.332(4), c = 7.172(2) A, ß = 111.34(3)°, Z = 4. II: a = 5.661(5), c = 8.004(7) A, Z = 2. (I) represents a new crystal structure, characterized by a network of octahedra occupied by Fe + and Te6+ in a disordered manner. The centres of negative charge of the lone pairs of Pb2+ in I are estimated by Coulomb term calculations. II belongs to the elpasolithe type. | | |
Reference
| (Z. Naturforsch. 52b, 35—39 [1997]; eingegangen am 2. September 1996) | | |
Published
| 1997 | | |
Keywords
| Lead, Iron, Cobalt, Tellurium Oxide, Crystal Structure | | |
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| default:Reihe_B/52/ZNB-1997-52b-0035.pdf | | | Identifier
| ZNB-1997-52b-0035 | | | Volume
| 52 | |
12 | Author
| Jutta Knaudta, Stefan Försterb, Ulrich Bartsch3, Anton Riekerb, Ernst-G Jägera | Requires cookie* | | Title
| Catalytic Oxidation of a Trialkyl-Substituted Phenol and Aniline with Biomimetic Schiff Base Complexes  | | | Abstract
| The catalytic oxidation of 2,4.6-tri-f6rr-butylphenol and 2,4,6-tri-te/-r-butylaniline with mo lecular oxygen and rerf-butylhydroperoxide was investigated using biomimetic Mn-, Fe-and Co-complexes as catalysts. The catalytic activity and product distribution were determined and compared with those observed in the reactions of the well-known Co(salen) complex. | | |
Reference
| (Z. Naturforsch. 55b, 86—93 [2000]; received Septem ber 22 1999) | | |
Published
| 2000 | | |
Keywords
| Biomimetic Catalysts, Oxidation, Macrocycles, Manganese, Iron, Cobalt | | |
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| default:Reihe_B/55/ZNB-2000-55b-0086.pdf | | | Identifier
| ZNB-2000-55b-0086 | | | Volume
| 55 | |
13 | Author
| JohannesA. Schmitt, Hans-Ulrich Meisch, W. Olfgang Reinle | Requires cookie* | | Title
| Schwermetalle in höheren Pilzen, II * Mangan und Eisen Heavy Metals in Higher Fungi, II Manganese and Iron  | | | Abstract
| In several series of 262 samples, Higher Fungi, especially from the Tremellales and Gastero-mycetes, were analyzed by atomic absorption spectroscopy on their content of the trace metals manganese and iron. Both elements were found to be present in higher concentrations in some species of the Trem ellales and P hallales. In the case of wood-destroying fungi, the Fe-and Mn-contents of the substrates were compared to those of the corresponding fungi. Only the species with the highest level of these metals reached the same contents as their substrates or a poor enrichment. Among the remaining species of the Higher Fungi, only in the case of the epigean P hallales, a possible biochemical role of manganese has been discussed. | | |
Reference
| (Z. Naturforsch. 32c, 712 [1977]; eingegangen am 20. Juni 1977) | | |
Published
| 1977 | | |
Keywords
| Manganese, Iron, Higher Fungi, Tremellales, Gasterales | | |
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| default:Reihe_C/32/ZNC-1977-32c-0712.pdf | | | Identifier
| ZNC-1977-32c-0712 | | | Volume
| 32 | |
15 | Author
| D. Ietrich, W. Ern Er, K. Lau, S-P Eter, K. Uhlm Ann | Requires cookie* | | Title
| Hairs o f Soybean (Glycine max)  | | | Abstract
| Root hairs of soybeans (Glycine max), target cells for infection by Rhizobium japonicum accumulate iron more than 10-fold, cobalt more than 8-fold and calcium more than 7-fold compared to the other parts of the root system. In root hairs of wheat (Triticum aestivum) a much smaller accumulation of these elements was found. The symbiont of Glycine max, Rhizobium japonicum, is known to have a high requirement for iron, cobalt and calcium. | | |
Reference
| Z. Naturforsch. 40c, 912 (1985); received May 30/July 31 1985 | | |
Published
| 1985 | | |
Keywords
| Calcium, Cobalt, Glycine max, Iron, Root-Hair | | |
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| default:Reihe_C/40/ZNC-1985-40c-0912_n.pdf | | | Identifier
| ZNC-1985-40c-0912_n | | | Volume
| 40 | |
16 | Author
| Werner Buchholz, Hans-Uwe Schuster | Requires cookie* | | Title
| Die Verbindungen MgFe6Ge6 und LiCo6Ge6 The Compounds MgFeßGee and LiCoöGee  | | | Abstract
| The hexagonally crystallizing compounds MgFeeGeß and LiCoeGeß were prepared and structurally characterized by single crystal investigations. The lattice constants are a = 506.7 pm, c — 804.5 pm, c/a—1.58s for MgFe6Ge6 and a = 504.8 pm, c = 772.9 pm, c/a = 1.53i for LiCoßGee. The structures (space group P6/mmm) are closely related to the structure of LiFeeGe6 and the B35-type structure of FeGe. | | |
Reference
| Z. Naturforsch. 33b, 877—880 (1978); eingegangen am 26. Mai 1978 | | |
Published
| 1978 | | |
Keywords
| Ternary Germanium Compounds, Magnesium, Iron, Lithium, Cobalt, Crystal Structure | | |
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| default:Reihe_B/33/ZNB-1978-33b-0877.pdf | | | Identifier
| ZNB-1978-33b-0877 | | | Volume
| 33 | |
17 | Author
| WolfgangA. Herrmann, Johann Plank, Ivan Bernal, Michael Creswick | Requires cookie* | | Title
| Übergangsmetall-Methylen-Komplexe, X [1] Methylen-und Alkyl-Eisen-Komplexe aus Diazoalkanen. Molekülstruktur von //-Carbonyl-//-feri-butoxycarbonyl-methylen- bis [carbonyl(^ 5 -cyclopentadienyl)eisen] (Fe-Fe) Transition Metal Methylene Complexes, X [1J Methylene and Alkyl Iron Complexes from Diazoalkanes. Molecular Structure of //-Carbonyl-^-Jerf-butoxycarbonyl-methylene- bis[carbonyl(if-cyclopentadienyl)iron] (Fe-Fe)  | | | Abstract
| The novel doubly bridged /i-methylene iron complexes /M-[C(H)C02R]-^-C0[(??5.C5H5)Fe(C0)]2 (R = C2H5: 3a; R — ^Hg: 3b) have been syn-thesized by low-temperature photolysis of the corresponding alkyldiazoacetates 2 a and 2 b, resp., in the presence of [(r? 5 -CsH5)Fe(CO)2]2 (1) and characterized by means of their analytical data and IR, X H NMR and mass spectroscopy. The geometry of 3 b has been established by single crystal X-ray diffraction techniques. cr-Alkyl iron complexes of the type (^ 5 -C5H5)Fe(C0)2[CHRR'] are accessible from the corresponding diazoalkanes N2 = CRR'. | | |
Reference
| Z. Naturforsch. 35b, 680—688 (1980); eingegangen am 3. Dezember 1979 | | |
Published
| 1980 | | |
Keywords
| ^-Alkoxycarbonylmethylene, cr-Alkyl, Bridging Ligands, Carbonyl Complexes, Iron | | |
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| default:Reihe_B/35/ZNB-1980-35b-0680.pdf | | | Identifier
| ZNB-1980-35b-0680 | | | Volume
| 35 | |
|