A molybdenum tris-(di-thiol-ene) complex coordinates to three bound cobalt centers in three different ways
| Autor: | Neilson Nguyen, Ulrich Fekl, Alan J. Lough |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
crystal structure
Denticity chemistry.chemical_element 02 engineering and technology Crystal structure 010402 general chemistry ligand 01 natural sciences Research Communications dithiolene General Materials Science Ene reaction dithiolene Crystallography Chemistry Ligand metalloligand General Chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics HEXA Sulfur 0104 chemical sciences 3. Good health QD901-999 Molybdenum 0210 nano-technology Cobalt |
| Zdroj: | Acta Crystallographica Section E: Crystallographic Communications Acta Crystallographica Section E: Crystallographic Communications, Vol 75, Iss 8, Pp 1261-1264 (2019) |
| ISSN: | 2056-9890 |
| Popis: | A molybdenum tris(dithiolene) complex acts as a ligand towards three Co(CO)2 units. The synthesis and structural characterization of the molecular compound (μ3-benzene-1,2-dithiolato)hexacarbonylbis(μ3-1,1,1,4,4,4-hexafluorobut-2-ene-2,3-dithiolato)tricobaltmolybdenum, [Co3Mo(C4F6S2)2(C6H4S2)(CO)6] or Mo(tfd)2(bdt)(Co(CO)2)3 (tfd is 1,1,1,4,4,4-hexafluorobut-2-ene-2,3-dithiolate and bdt is benzene-1,2-dithiolate), are reported. The structure of the molecule contains the molybdenum tris(dithiolene) complex Mo(tfd)2(bdt) coordinated as a multidentate ligand to three cobalt dicarbonyl units. Each of the three cobalt centers is relatively close to molybdenum, with Co⋯Mo distances of 2.7224 (7), 2.8058 (7), and 2.6320 (6) Å. Additionally, each of the cobalt centers is bound via main-group donor atoms, but each one in a different way: the first cobalt atom is coordinated by two sulfur atoms from different dithiolenes (bdt and tfd). The second cobalt atom is coordinated by one sulfur from one tfd and two olefinic carbons from another tfd. The third cobalt is coordinated by one sulfur from bdt and two sulfurs from tfd. This is, to the best of our knowledge, the first structurally characterized example of a molybdenum (tris)dithiolene complex that coordinates to cobalt. The F atoms of two of the –CF3 groups were refined as disordered over two sets of sites with ratios of refined occupancies of 0.703 (7):0.297 (7) and 0.72 (2):0.28 (2). |
| Databáze: | OpenAIRE |
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