| | 1 | Author
| Udo Kunze, Antonios Antoniadis | Requires cookie* | | | Title
| Phosphinsubstituierte Chelatliganden, II [1] Thiocarbamoylphosphinsulfid-und -oxid-Komplexe des Mangans und Rheniums Phosphine Substituted Chelate Ligands, II [1] Thiocarbamoylphosphine Sulfide and Oxide Complexes of Manganese and Rhenium  | | | | Abstract
| Thiocarbamoylphosphine sulfides la-c and oxides 2a-c are ambidentate chelating ligands which may form monomeric or dimeric complexes with carbonylmetal halides. The reaction of la-c with ClMn(CO)s and ClRe(CO)s yields the monomeric cw-tetracarbonyl complexes 3a-c and 4a-c with S,S'-coordination. The phosphine oxides 2a-c first form tetracarbonyl complexes which dimerize spontaneously under loss of CO to give the anfi-/ac-tricarbonyl complexes 6a-c and 6 a with bridging three-coordinate sulfur. On refluxing in n-hexane solution, 8a-c and 4b, c are converted into the corresponding dimers 7a-c and 8 b, c. Dissolving of 7 b, c in CH2C12 leads to re-formation of 8 b, c, the free ligands lb, c and inorganic manganese compounds. | | | |
Reference
| Z. Naturforsch. 36b, 1117—1124 (1981); eingegangen am 21. Mai 1981 | | | |
Published
| 1981 | | | |
Keywords
| Chelate Ligands, Thiocarbamoylphosphine Sulfide, Thiocarbamoylphosphine Oxide, Manganese Complexes, Rhenium Complexes | | | |
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| default:Reihe_B/36/ZNB-1981-36b-1117.pdf | | | | Identifier
| ZNB-1981-36b-1117 | | | | Volume
| 36 | |
| 2 | Author
| Udo Kunze, Antonios Antoniadis | Requires cookie* | | | Title
| Phosphinsubstituierte Chelatliganden, IV [1] Neue Diphenylphosphinoformamid-Komplexe des Mangans und Eisens Phosphine Substituted Chelate Ligands, IV [1] New Diphenylphosphino Formamide Complexes of Manganese and Iron | | | | Abstract
| The phosphino and (thio)phosphoryl formamides la, b, 2a-c, 3a, b, 4a, b which were partially unknown are synthesized by various methods, and their reactions with carbonyl-metal halides of manganese and iron are described. The formation of the P,N-and S,N-coordinate chelate complexes, (CO)4MnL (5 a, 8a), is limited to the N-phenyl derivatives la and 4a. With L = 2a, b, the unidentate P-coordination predominates. Thus, the carbonylmetal halide complexes cis-(CO)4Mn(X)L (6a, b: X = CI, 7a, b: X = Br) and 7? 5 -C5H5(CO)Fe(X)L (9a, b: X = I, 10a, b: X = Br) are obtained. Due to the low stability of the formamide complexes, their formation is always accompanied by isocyanate elimi-nation as a side-reaction. | | | |
Reference
| Z. Naturforsch. 37b, 560—567 (1982); eingegangen am 17. November 1981 | | | |
Published
| 1982 | | | |
Keywords
| Chelate Ligands, Phosphino Formamide, Manganese Complexes, Iron Complexes, Isocyanate Elimination | | | |
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| default:Reihe_B/37/ZNB-1982-37b-0560.pdf | | | | Identifier
| ZNB-1982-37b-0560 | | | | Volume
| 37 | |
| 3 | Author
| Ekkehard Lindner, Walter Wassing, R. Fawzi, M. Steimann | Requires cookie* | | | Title
| Zweikernige Mangan-und Rheniumkomplexe mit gemischt aliphatischen-aromatischen Kohlenwasserstoffbrücken Dinuclear Manganese and Rhenium Complexes with Mixed Aliphatic-Aromatic Hydrocarbon Bridges | | | | Abstract
| The symmetrically hydrocarbon-bridged complexes (OC)5M -(C H 2)n+1-X -(C H 2)n+|-M (CO)5 [n = 1, X = 1,4-C6H4, M = Mn (2a), M = Re (3a); n = 2, X = 1,4-C6H4, M = Mn (2b), M = Re (3b); n = 1, X = 1,3-C6H4, M = Mn (5a), M = Re (6a); n = 2, X = 1,3-C6H4, M = Mn (5b), M = Re (6b); n = 1, X = 1,2-C6H4, M = Mn (8a), M = Re (9a); n = 2, X = 1,2-C 6H4, M = Mn (8 b), M = Re (9b)] are obtained by the reaction of the bistriflates X[(CH2)"-C H 2-0 S 0 2CF3]2 [X = 1,4-C6H4, n = 1 (la), n = 2 (lb); X = 1,3-C6H4, n = 1 (4a), n = 2 (4b); X = 1,2-C6H4, n = 1 (7 a), n = 2 (7 b)] with the carbonyl metalates [M(CO)5]" (M = Mn, Re) in THF and dimethyl ether, respectively. According to an X-ray structural analysis 8a crystallizes in the triclinic space group PI with Z = 2. Depending on the solvent, the reaction of 7 a with [Mn(CO)5]" affords also the cyclic carbene complex 10 a. The behavior of the manganese compounds toward CO has been investigated exemplarily in the case of 8 a and leads to the diacyl complex l,2-C6H4[CH2CH2C (0)M n(C 0)5]2 (11). Upon reaction with Na2C 0 3/CH30 H 11 is con verted to give the corresponding diester 1,2-C6H4[CH2CH2C (0)0 C H 3]2 (12). | | | |
Reference
| Z. Naturforsch. 48b, 1651—1660 (1993); eingegangen am 2. Juli 1993 | | | |
Published
| 1993 | | | |
Keywords
| Bistriflates, Hydrocarbon-Bridged Complexes, Manganese Complexes, Rhenium Complexes, Crystal Structure | | | |
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| default:Reihe_B/48/ZNB-1993-48b-1651.pdf | | | | Identifier
| ZNB-1993-48b-1651 | | | | Volume
| 48 | |
| 4 | Author
| Dana Weiß, Annette Schier, Hubert Schmidbaur | Requires cookie* | | | Title
| 2-Diphenylphosphino-phenoI as a Ligand for Mono-and Poly-Nuclear Complexes of Manganese, Cobalt, Nickel, Zinc, and Cadmium | | | | Abstract
| 2-Diphenylphosphino-phenol was chosen as an ambivalent (hard/soft) chelating ligand for biologically important first row transition metals. The expected mode of complexation is relevant to trapping of metal ions in humic acids and related environmental ion exchange systems with phenolate functions. The 1:2 complex with nickel(II) is known to have a standard mononuclear square-planar structure, and experimental evidence suggests that the new cobalt(II) complex is analogous. By contrast, zinc and cadmium were found to give novel trinulear complexes [M3(2-Ph2P-C6H4 0)6], M = Zn, Cd. In a chain of three metal atoms, the octahedrally coordinated central atom resides on a center of inversion and is solely oxygen-bound [MOö], while the two peripheral metal atoms are in a mixed coordination environment [fac-M 03P3], The analogous manganese(II) complex crystallizes as a net trihydrate, where two different trinuclear units are present in the lattice. One is of a new type and represents a centrosymmetrical hexahydrate [Mn3(2 -Ph2P-C6H4 0)6(0 H2)6]. The central part is an octahedral [Mn(OH2)6]2+ dication, which is hydrogen-bonded to two [Mn(2 -Ph2P-C6H4 0)3]~ anions. The nickel(II) complex was found to form 1:1 adducts with ZnCl2 or ZnBr2. The two complexes are isomorphous. In the adduct structure the zinc atom is attached to the two oxygen atoms of the nickel compound leaving the remainder of the molecular geometry largely unchanged. Together with the two halogen atoms a tetrahedral environment [Zn02X 2] is formed (X = Cl, Br), while the nickel atom retains its square planar [N i0 2P2] environment. | | | |
Reference
| Z. Naturforsch. 53b, 1307—1312 (1998); received August 12 1998 | | | |
Published
| 1998 | | | |
Keywords
| Phosphino-phenolate Ligands, Phenolate Ligands, Zinc Complex, Manganese Complex, Nickel Complex | | | |
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| default:Reihe_B/53/ZNB-1998-53b-1307.pdf | | | | Identifier
| ZNB-1998-53b-1307 | | | | Volume
| 53 | |
| 5 | Author
| Burkhard Niemer, TorstenW. Eidmann, W. Olfgang, Beck | Requires cookie* | | | Title
| Kohlenwasserstoffverbrückte Metallkomplexe, XXIV [1] Pentacarbonylrhenio-substituierteThiophen-, Cyclohexadienyl-und Benzol-Komplexe von Mangan, Rhenium und Eisen Hydrocarbon Bridged Complexes, XXIV [1] Pentacarbonylrhenio Substituted Thiophene, Cyclohexadienyl and Benzene Complexes of M anganese, Rhenium and Iron | | | | Abstract
| The addition o f pentacarbonylrhenate to [(OC)3M n(thiophene)]+, [(OC)3M (^6-C6H 4R2)]+ (M = Mn, Re; R = H, Me, Cl) yields the er,7r-hydrocarbon bridged complexes (OC)3MnGu-774:/71-C4H 4S)Re(CO)5 and (OC)3M(Ju-^6:7 1-C6H 4R 2)Re(CO)5, respectively. The latter complexes have also been obtained from (OC)5M F B F 3 (M = Mn, Re) and C6H 5Re(CO)5. The fluxional behaviour o f the cyclohexadienyl bridged complexes is probably due to a 1,2-shift of the Re(CO)5 group. The reaction o f [Re(CO)5]-with [(/;5-C5H 5)Fe(^6-/?-C6H 4(R)Cl)]+ (R = H, Me, Cl) proceeds with substitution o f chlorine to give the heterobimetallic compounds [(75-C5H 5)Fe[^-/76^ 1-C6H 4(R)]Re(CO)5]+. | | | |
Reference
| Z. Naturforsch. 47b, 509—516 (1992); eingegangen am 8. N ovember 1991 | | | |
Published
| 1992 | | | |
Keywords
| Nucleophilic Addition o f Pentacarbonylrhenate, er, 7r-Thiophene, Cyclohexadienyl, Benzene Bridged Metal Complexes, Manganese Complexes, Rhenium Complexes | | | |
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| default:Reihe_B/47/ZNB-1992-47b-0509.pdf | | | | Identifier
| ZNB-1992-47b-0509 | | | | Volume
| 47 | |
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