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Ag(II)-based Oxidizers in Inorganic and Organic Chemistry

Wednesday, January 26, 2022 - 10:00 to 11:00
Dr. Wojciech Grochala
University of Warsaw
Event Category: 
Special Seminar
Glenn Sammis
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Compounds of divalent silver, Ag(II), are unique within a plethora of known silver compounds. The 4d shell is open for Ag(II) rendering silver a genuine transition metal rather than a post-transition metal, as predominance of Ag(I) species might erroneously suggest. However, removal of an electron from the d shell comes with large energy prize and in consequence, most Ag(II) species are extremely ferocious oxidizers. Because of that, fluoride connections are prevalent in chemistry of Ag(II) [1]. Nevertheless, selected oxo-and N-bonded species may also be prepared at the cost of their metastability [2,3,4,5]. Aside from fascinating physics of low-dimensional Ag(II)-based magnets [6,7], the use of Ag(II) species as oxidizers is of interest in both inorganic and organic chemistry. In this context Ag(II)SO4 [2] and its hydrate [3] are probably the most interesting as their reactivity does not involve from F-transfer reactions, as is typical of the AgF2 counterpart. The most important pathways of reactivity of Ag(II)SO4 will be discussed in this talk including one-electron C-H bond activation, C-C coupling and pericyclic reactions with occasional O-insertion in the C-H bonds.


[1] W. Grochala, R. Hoffmann, ANGEW CHEM INT ED ENGL 40 (15): 2742-2781 2001.

[2] P. J. Malinowski et al., ANGEW CHEM INT ED ENGL 49(9): 1683-1686 2010.

[3] T. E. Gilewski et al., CHEM EUR J 23(8): 1805-1813 2017.

[4] P. J. Leszczyński, DALTON TRANS 41(2): 396-402 2012.

[5] P. J. Malinowski et al., CHEM EUR J 17(38): 10524-10527 2011.

[6] D. Kurzydłowski, W. Grochala, ANGEW CHEM INT ED ENGL 56(34): 10114–10117 2017.

[7] J. Gawraczyński et al., PROC NAT ACAD SCI USA 116(5): 1495-1500 2019.