mer-Trichlorotris(pyridine)vanadium(III)

Reaction ofp-Toluenesulfonylamide and M(NMe2)4(M = Ti, V): Generation of Electron-Deficient Imido Complexes of Early Transition Metals

“…Nevertheless, we were unable to isolate other species out of the reaction, but this unexpected reactivity is currently under further examination in our group. Both vanadium(III) compounds were characterized by X-ray diffraction analyses that are given as Supporting Information, as they crystallized in space groups different from those previously reported …”

mer-Trichloro(2,2′,2′′-terpyridine)chromium(III) dimethyl sulfoxide solvate

“…The (1) Å ] bond is trans to Cr-Cl3 [2.327 (1) Å ] and the two bond lengths are very similar; they are significantly longer than the central Cr-Cl2 [2.291 (1) Å ] bond. This can be ascribed to the larger trans influence of Cl versus N. A point of interest is the fact that the complexes mer-[VCl 3 (py) 3 ] (Sorensen et al, 1994) and mer-[FeCl 3 (py) 3 ].py (py = pyridine) (Hoser et al, 1983) both indicate a lengthened M-N(central) bond, as well as a shortened M-Cl(central) bond. This can thus eliminate the theory that the rigid nature of the terpyridyl ligand is the cause of the distortion of these bonds.…”

1H, 13C, 15N NMR and 13C, 15N CPMAS studies of cobalt(III)-chloride-pyridine complexes, spontaneous py → Cl substitution in trans-[Co(py)4Cl2]Cl, and a new synthesis of mer-[Co(py)3Cl3]

“…+ cations in the two salts studied by X-ray: trans-[Co(py) 4 3 Cl 3 ] formula (M = Al, BODZAV [59]; M = V, WEHZUE [60]; M = Cr, QQQFYV01 [23], M = Mo, CLPYMO01 [22]; M = Rh, CILYOL [61] A surprisingly increased number of 15 N CPMAS resonances suggests either sample polymorphism, or the appearance of two discrete types of mer-[Co(py) 3 Cl 3 ] molecules within the crystal lattice, differing in packing and details of the coordination polyhedron (such a phenomenon being usually named as distortion isomerism [62]), by analogy to [Zn(py) 2 Cl 2 ] (ZNPYRC01) [63] or [Pd(dpphen)Cl 2 ] (FURKUY) [64].…”