| | 1 | 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 | | | |
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| default:Reihe_B/53/ZNB-1998-53b-0893.pdf | | | | Identifier
| ZNB-1998-53b-0893 | | | | Volume
| 53 | |
| 2 | Author
| Qianfeng Zhanga, Jinxi Chena, Maochun Hongb, Xinquan Xina, Hoong-Kun Func | Requires cookie* | | | Title
| Crystal and Molecular Structure of the Copper(I)-thiolate-selenide Complex [Ph4P][Cu(SeS2CNC4H8)(S2CN2C4H8)] with an Unusual Se-S Bond | | | | Abstract
| Reaction of a DMF solution of Cu(S^CNC4 H8) with [Ph4 P]2 [WSe4 ] affords [Ph4 P b[W Se4 -(CuS2CNC4H8)3 ] (1) and [Ph4P][Cu(SeS2 CNC4 H8)(S2 CN2 C4 H 8)] (2) in which a Se atom from the decomposition of the W Se4 2~ anion has reacted with the pyrrolidyldithiocarbamate (C4 H8dtc) ligand anion to form the new ligand anion SeSiC N C +H s'. Complex 2 crystallizes with four formula units in the monoclinic space group P2\/c in a cell of dimensions a = 10.5824(2), b = 18.7575(3), c = 18.3268(4) A and ß = 109.0980(10)°. 6055 independent reflections above background were measured with a diffractometer and the structure was re fined anisotropically to R =0.073. The anion contains a three-coordinated copper(I) atom. The C4 H8 dtcö ligand is bonded to the Cu+ cation in a terminal fashion, while SeS2 CNC4 H8~ chelates the Cu+ cation. The Se-S bond length is 2.231 (4) A. | | | |
Reference
| Z. Naturforsch. 54b, 1313—1317 (1999); received April 4 1999 | | | |
Published
| 1999 | | | |
Keywords
| Crystal Structure, Copper Complex, Selenium Complex, Thiolate Ligand | | | |
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| default:Reihe_B/54/ZNB-1999-54b-1313.pdf | | | | Identifier
| ZNB-1999-54b-1313 | | | | Volume
| 54 | |
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