| | 1 | Author
| WolfdieterA. Schenk, Nicolai Burzlaff, Hans Burzlaff | Requires cookie* | | | Title
| Chiral Thioaldehyde Complexes of Rhenium, X-Ray Structure Determination of [Cp(NO )(Ph3P)R e(i/2-S=CHPh)]PF6 [1]  | | | | Abstract
| Chiral thiolate com plexes [C p(N O)(Ph3P)R eSC H 2R] (R = Ph, 4-C6H 4Cl, 4-C6H4OM e, H, Me) are obtained from [C p(N O)(Ph3P)R eC H 3] by acid cleavage in the presence of thiol and subsequent deprotonation. Small amounts of (chloromethyl)thioether com plexes [C p(N O)(Ph3P)R eS(C H 2C l)C H 2R ]BF4 are formed when dichloromethane is used as a sol vent in this reaction. Hydride abstraction using [Ph3C]PF6 converts the thiolate com plexes into ionic thioaldehyde com plexes [C p(N O)(Ph3P)Re(?72-S=CHR)]PF6. These are obtained as pure (RR.SS)-diastereom ers as shown spectroscopically and by X-ray structure determ i nation of [C p(N O)(Ph3P)Re(?/2-S=CHPh)]PF6. Crystals are monoclinic, space group 12/a (No. 15), a = 25.877(3), b = 18.785(2), c = 13.768(1) A , ß = 104.93(1)°, Z -8. | | | |
Reference
| Z. Naturforsch. 49b, 1633 (1994); received April 21 1994 | | | |
Published
| 1994 | | | |
Keywords
| Rhenium Complexes, Thioaldehyde, Structure | | | |
Similar Items
| Find | | | DEBUG INFO
| | | | | TEI-XML for
| default:Reihe_B/49/ZNB-1994-49b-1633.pdf | | | | Identifier
| ZNB-1994-49b-1633 | | | | Volume
| 49 | |
| 3 | Author
| Nicolai Burzlaff, Michael Hagel, WolfdieterA. Schenk | Requires cookie* | | | Title
| Tuning the Steric and Electronic Properties of Chiral Rhenium Thiolate Complexes [1] | | | | Abstract
| Reaction of the complex [CpRe(NO)(CO)2]BF4 with triisopropylphosphine gives the chiral CO substitution product [CpRe(NO){P(/-Pr)3}(CO)]BF4. The corresponding triphenylphos-phite complex [CpRe(NO){P(OPh)3}(CO)]BF4 may be obtained by oxidative CO removal. Reduction of the remaining CO ligand with NaBH4 furnishes the corresponding methyl com plexes [CpRe(NO)(L)(CH3)]. The structure of [CpRe(NO){P(/-Pr)3}(CH3)] was determined: triclinic space group PI (No. 2), a = 8.442(4), b = 9.582(5), c -11.820(8) A, a = 81.81 (4), ß = 87.18(4), 7 = 63.87(5)°, Z = 2. Reaction of the methyl complexes with HBF4 in the presence of thiols gives, after chromatographic workup, the thiolate derivatives [CpRe(NO)(L)(SR)] (L = CO, P(OPh)3, P(/-Pr)3, R = CH2Ph, CH2(4-C6H4C1), CH2(4-C6H4OMe), CH3, C2H5). The structure of [CpRe(NO){P(/-Pr)3}(SCH3)] was determined: monoclinic space group P2i (No. 3), a = 7.0515(7), b = 17.3469(10), c = 7.9727(7) Ä, ß = 114.021(7)°, Z = 2. In both structures, a significant opening of the angle N-Re-X (X = C, S) suggests that antibonding interactions between orbitals of the ligand X and the second-highest MO of the [CpRe(NO)(L)] complex fragment are avoided. | | | |
Reference
| Z. Naturforsch. 53b, 893—899 (1998); received May 5 1998 | | | |
Published
| 1998 | | | |
Keywords
| Rhenium Complexes, Thiolate Ligands, Structure | | | |
Similar Items
| Find | | | DEBUG INFO
| | | | | TEI-XML for
| default:Reihe_B/53/ZNB-1998-53b-0893.pdf | | | | Identifier
| ZNB-1998-53b-0893 | | | | Volume
| 53 | |
| 4 | Author
| Markus Leirer, Günther Knör, Amd Vogler | Requires cookie* | | | Title
| Synthesis and Electronic Spectra of Tricarbonylrhenium(I) Chloride Complexes with 9,10-Phenanthrenequinone and 9,10-Phenanthrenequinone Diimine as Acceptor Ligands | | | | Abstract
| The complexes Re(L-L)(CO)3Cl with L-L = 9,10-phenanthrenequinone (PHQ) and 9,10-phenanthrenequinone diimine (PHI) were prepared and characterized spectroscopically. Both compounds show intense Re(I) to L-L metal-to-ligand charge transfer (MLCT) absorptions. In chloroform, the M LCT bands appear at 711 nm (L-L = PHQ) and 553 nm (L-L = PHI). | | | |
Reference
| Z. Naturforsch. 54b, 1039—1041 (1999); received April 28 1999 | | | |
Published
| 1999 | | | |
Keywords
| Charge Separation, Rhenium Complexes, Quinones, Diimines | | | |
Similar Items
| Find | | | DEBUG INFO
| | | | | TEI-XML for
| default:Reihe_B/54/ZNB-1999-54b-1039.pdf | | | | Identifier
| ZNB-1999-54b-1039 | | | | Volume
| 54 | |
| 5 | 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 | | | |
Similar Items
| Find | | | DEBUG INFO
| | | | | TEI-XML for
| default:Reihe_B/36/ZNB-1981-36b-1117.pdf | | | | Identifier
| ZNB-1981-36b-1117 | | | | Volume
| 36 | |
| 6 | 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 | | | |
Similar Items
| Find | | | DEBUG INFO
| | | | | TEI-XML for
| default:Reihe_B/48/ZNB-1993-48b-1651.pdf | | | | Identifier
| ZNB-1993-48b-1651 | | | | Volume
| 48 | |
| 8 | Author
| Udo Kunze, Andreas Bruns | Requires cookie* | | | Title
| Phosphinsubstituierte Chelatliganden, XII [1] Metallinduzierte E/Z-Isomerisierung an Rheniumcarbonyl-Komplexen mit Phosphinothioformamid-und -thioformimidat-Liganden Phosphine-Substituted Chelate Ligands, XII [1] Metal-Induced E/Z-Isomerisation of Rheniumcarbonyl Complexes with Phosphino- thioformamide and -thioformimidate Ligands | | | | Abstract
| The coordination of tertiary phosphinothioform-amides and the isomeric S-alkyl phosphinothioform-imidates to BrRe(CO) 5 gives the /ac-bromotricar-bonylrhenium complexes la, b and 2a, b with P,S-chelate ligands. Unlike the analogous manganese complexes, the NMR spectra of dissolved lb and 2a, b show a splitting of the N-alkyl ('H, 13 C) and phosphorus signals indicating E/Z isomerisation of the ligands. | | | |
Reference
| (Z. Naturforsch. 40b, 127—128 [1985]; eingegangen am 7. August/5. September 1984) | | | |
Published
| 1985 | | | |
Keywords
| E/Z-Isomerisation, NMR Spectra, Rhenium Complexes, Tertiary Phosphinothioform-amides, S-Alkyl Phosphinothioformimidates | | | |
Similar Items
| Find | | | DEBUG INFO
| | | | | TEI-XML for
| default:Reihe_B/40/ZNB-1985-40b-0127_n.pdf | | | | Identifier
| ZNB-1985-40b-0127_n | | | | Volume
| 40 | |
| 9 | Author
| Markus Leirer, Günther Knör, Amd Vogler | Requires cookie* | | | Title
| Synthesis and Spectroscopic Properties of 1,2-Diiminetricarbonyl- rhenium(I)chloride Complexes with Aliphatic Diimines (or 1,4-Diaza-l,3-butadienes) as Ligands | | | | Abstract
| Re(l,2-diimine)(CO)3Cl complexes with the aliphatic bidentate ligands diiminosuccino-dinitrile (DISN), benzilbisanile (BEAN), bisacetylbisanile (BABA), and benzildiimine (BE DIM) are reported. The compounds show Re(I) to 7r*(diimine) metal-to-ligand charge transfer (MLCT) absorptions in the visible spectral region. The energy of these MLCT-transitions de creases in the series BABA > BEDIM > BEAN > DISN, depending on the 7r* acceptor properties of the coordinated diimine ligands. The maxima of these CT bands undergo a solvent-dependent shift (negative solvatochromism), which indicates a partial charge redistribution in the excited state. The compounds are not photoluminescent at room temperature and 77 K. | | | |
Reference
| Z. Naturforsch. 54b, 341—344 (1999); received December 11 1998 | | | |
Published
| 1999 | | | |
Keywords
| Charge Transfer, Rhenium Complexes, 1, 4-Diaza-l, 3-butadienes, Solvatochromism | | | |
Similar Items
| Find | | | DEBUG INFO
| | | | | TEI-XML for
| default:Reihe_B/54/ZNB-1999-54b-0341.pdf | | | | Identifier
| ZNB-1999-54b-0341 | | | | Volume
| 54 | |
| 10 | 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 | | | |
Similar Items
| Find | | | DEBUG INFO
| | | | | TEI-XML for
| default:Reihe_B/47/ZNB-1992-47b-0509.pdf | | | | Identifier
| ZNB-1992-47b-0509 | | | | Volume
| 47 | |
|
