Our interest in the chemistry of the nitrosyl complexes has been mainly devoted to the use of monodentate phosphite as coligand, and in this context, the syntheses of pentacoordinate {Co(NO)}8 complexes1 of the type [CoXL3(NO)]+ and [CoL4(NO)]2+ have recently been reported.2 Similar investigations carried out on iron(II) halides by using gaseous NO allowed us to obtain new pentacoordinate [FeL4(NO)]+ (L = phosphite) derivatives, which are described in the present report. Furthermore, whereas some iron nitrosyl compounds also containing CO have been described, 3 no example of iso-cyanide-phosphine derivatives known to us has yetbeen reported. Therefore, in this paper we also present the reactivity of the [FeL4(NO)]+ species with isocyanides, leading to the synthesis of the first nitrosyl isocyanides-phosphite mixedligand complexes. © 1984, American Chemical Society. All rights reserved.
Preparation and properties of new pentacoordinate iron nitrosyl complexes
ALBERTIN, Gabriele;BORDIGNON, Emilio
1984
Abstract
Our interest in the chemistry of the nitrosyl complexes has been mainly devoted to the use of monodentate phosphite as coligand, and in this context, the syntheses of pentacoordinate {Co(NO)}8 complexes1 of the type [CoXL3(NO)]+ and [CoL4(NO)]2+ have recently been reported.2 Similar investigations carried out on iron(II) halides by using gaseous NO allowed us to obtain new pentacoordinate [FeL4(NO)]+ (L = phosphite) derivatives, which are described in the present report. Furthermore, whereas some iron nitrosyl compounds also containing CO have been described, 3 no example of iso-cyanide-phosphine derivatives known to us has yetbeen reported. Therefore, in this paper we also present the reactivity of the [FeL4(NO)]+ species with isocyanides, leading to the synthesis of the first nitrosyl isocyanides-phosphite mixedligand complexes. © 1984, American Chemical Society. All rights reserved.
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