Nitridorhenium(V)‐Komplexe mit Dimercaptobernsteinsäuredimethylester. Präparation,Charakterisierung und Kristallstruktur von [Re{NC(CH3)2PPhMe2}(DMSMe2)2] |
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Authors: | S. Seifert P. Leibnitz H. Spies |
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Abstract: | Nitridorhenium(V) Complexes with Dimercapto Succinic Acid Dimethylester. Preparation, Characterization, and Crystal Structure of [Re{NC(CH3)2PPhMe2}(DMSMe2)2] Reaction of [ReNCl2(Me2PhP)3] 1 with two equivalents of dimercaptosuccinic acid dimethylester (DMSMe2) results in the formation of a neutral, diamagnetic rhenium(V)‐DMSMe2 complex with a phenyldimethylphosphinoisopropyl group at the nitrido ligand as a consequence of a nucleophilic attack of the coordinated nitrido ligand on the solvent molecule. The formed complex 2 of the composition [Re{NC(CH3)2(Me2PhP)}(DMSMe2)2] crystallizes in the triclinic space group P 1, a = 12.334(7), b = 12.412(7), c = 12.414(8) Å; α = 60.14(3)°, β = 67.98(3)°, γ = 80.63(6)°; Z = 2. Rhenium is located in a square‐pyramidal configuration of the donor atoms. The two meso‐DMSMe2 ligands are in a syn‐endo conformation. The rhenium‐nitrogen bond (1.697(12) Å) is only slightly longer than typical Re–N bonding distances in nitrido complexes and comparable with other Re–N–C bonding distances. The addition of a solvent molecule is observed in acetone ( 2 ) as well as in methylethylketone ( 3 ). Moreover, a reaction of the nitrido group with the condensation product of ketone is found by mass spectrometry ([ReN{C(CH3)(C2H5)CH2C(O)C2H5(Me2PhP)}(DMSMe2)2] 4 ). |
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Keywords: | Rhenium complexes Nitrido compounds DMS complexes X‐ray diffraction |
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