AI Article Synopsis
- Researchers have successfully isolated square-planar organosilver(III) compounds [PPh][trans-(CF)AgX] with X being Cl and Br, characterized using single-crystal X-ray diffraction.
- The compounds 1a and 2a are identified as kinetically favored stereoisomers based on stability calculations and can associate with an additional ligand to form rare five-coordinate silver species.
- Compound [PPh][(CF)AgBr] has been discovered as the first organosilver derivative showing trigonal symmetry and trigonal bipyramidal geometry, along with an inverted ligand field.
Article Abstract
By using suitable synthetic procedures, we have first isolated the square-planar organosilver(III) compounds [PPh ][trans-(CF ) AgX ] [X=Cl (1 a), Br (2 a)]. The geometry and stereochemistry of the chloro-derivative 1 a have been unambiguously established by single-crystal X-ray diffraction (SC-XRD) methods. Following our calculations on the relative stability of the cis-/trans-[(CF ) AgX ] couples (X=F, Cl, Br, I), the experimentally obtained compounds 1 a and 2 a appear to be kinetically favored stereoisomers. They display some tendency to associate an additional X ligand affording rare five-coordinate Ag species [(CF ) AgX ] . Interestingly, compound [PPh ] [(CF ) AgBr ] (3) has been identified by SC-XRD methods as the first Ag derivative with trigonal symmetry in general and trigonal bipyramidal geometry in particular. This unusual five-coordinate species also exhibits inverted ligand field.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9298700 | PMC |
| http://dx.doi.org/10.1002/anie.202112449 | DOI Listing |
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