Journal
MONATSHEFTE FUR CHEMIE
Volume 150, Issue 7, Pages 1235-1240Publisher
SPRINGER WIEN
DOI: 10.1007/s00706-019-02422-6
Keywords
Chromium; Molybdenum; Tungsten; Pincer complexes; Carbonyl ligands; DFT calculations
Categories
Funding
- Austrian Science Fund (FWF) [P29584-N28]
- X-ray center of the Vienna University of Technology
- Austrian Science Fund (FWF) [P29584] Funding Source: Austrian Science Fund (FWF)
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In the present study, the Cr(III) complex trans-[Cr(PCPCH2-iPr)(CH3CN)(Br)(2)] as well as seven-coordinate cationic bromo carbonyl Mo(II) and W(II) complexes of the type [M(PCPCH2-iPr)(CO)(3)Br] (M=Mo, W) featuring PCP pincer ligands based on a xylene scaffold were prepared and characterized. The seven-coordinate bromo tricarbonyl complexes exhibit fluxional behavior in solution due to rapid CO ligand interconversions. The mechanism of this process was studied by means of DFT calculations. Structures of representative complexes were determined by single-crystal X-ray analyses. [GRAPHICS] .
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