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• W1963965706 abstract "Hetero-Ringsysteme (L), die eine NN-Doppelbindung enthalten, reagieren in THF-Lösung mit dem photolytisch aus Cr(CO)6 erhältlichen Komplex [Cr(CO)5(THF) ] zu Koordinationsverbindungen des Typs Cr(CO)5L 2 (L = 2,3-Diazabicyclo[2.2.1]hept-2-en (2a), 5-Phenyl −3,4,5-triazatricyclo[5.2.1.02,6exo] des-3-en (2b), Dispiro[cyclohexan-2′-[1.3.4] thiadiazolin-5′-cyclohexan] (2c) und Pyridazin (2d). Aus den 1H-NMR- und IR-spektren von 2a–d ergibt sich, daß die cyclischen Liganden L unsymmetrisch über ein freies Elektronenpaar des einen der beiden Stickstoffatome der NN-Doppelbindung an den [Cr(CO)5]-Rest koordiniert sind. Bei der Photolyse des Δ2-Triazolin-Komplexes 2b entsteht ein π-Aromat-Komplex (6) des zugehörigen Aziridins. Transition Metal Complexes of N-Containing Ligands, V Pentacarbonylchromium Complexes of the Type Cr(CO)5L Containing Cyclic ligands with a NN Double Bond Hetero-ring systems (L) possessing a NN double bond react with the complex [Cr(CO) 5(THF)], prepared by photolysis of Cr(CO)6 in THF solution, to give coordination compounds of the type Cr(CO)5L 2 (L = 2,3-diazabicyclo[2.2.1]hept-2-ene (2a), 5-phenyl-3,4,5-triazatricyclo- [5.2.1.02,6exo] dec-3-ene (2b), dispiro[cyclohexane-2′-[1.3.4]thiadizoline-5′-cyclohexane] (2c), and pyridazine (2d). A study of the 1H-n.m.r. and i.r. spectra of 2a–d leads to the conclusion that the cyclic ligands L are unsymmetrically coordinated to the [Cr(CO)5] fragment through the lone pair of electrons at one of the nitrogen atoms of the NN double bond. Photolysis of the Δ2-triazoline complex 2b gives a π-arene complex (6) of the corresponding aziridine." @default.
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• W1963965706 date "1974-10-01" @default.
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• W1963965706 title "Übergangsmetallkomplexe mit N-haltigen Liganden, V. Pentacarbonylchrom-Komplexe des Typs Cr(CO)5L mit cyclischen Liganden, die eine NN-Doppelbindung enthalten" @default.
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• W1963965706 doi "https://doi.org/10.1002/cber.19741071007" @default.
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