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. 2020 Jan 24;59(14):5581–5585. doi: 10.1002/anie.201915942

Scheme 1.

Scheme 1

Synthesis of the desired heteroleptic iron carbonyl/nitrosyl cations [Fe(CO)4(NO)]+ and [Fe(CO)(NO)3]+ as [F‐Al(ORF)3}2] salts 1 and 2. Reactions (a) and (c) give 80 % yield, if starting from pure materials.