Synthesis, properties and complexation of (S)-1-isocyano-2-methylferrocene, the first planar-chiral isocyanide ligand

Synthesis and Electrochemical Behavior of Metal Carbonyl Isocyanoferrocene Compounds [M(CO)6‐n(C≡NFc)n] (M=Cr, Mo, W; n=1, 2, 3)

“…However, IR spectroscopy approves the existence of mer ‐ 6 ( vide supra ) [32,35] . The ferrocenyl groups display for the C 5 H 5 one, and for the C 5 H 4 ligands three carbon signals at 66–81 ppm, as expected (Experimental) [13,14,16,17,23,41] …”

“…[32,35] The ferrocenyl groups display for the C 5 H 5 one, and for the C 5 H 4 ligands three carbon signals at 66-81 ppm, as expected (Experimental). [13,14,16,17,23,41] The electronic properties of 2, 3 a-c, 5 and 6 were studied using cyclic (= CV) and square wave voltammetry (= SWV) as well as in situ IR spectroelectrochemistry (3 a-c) (Table 1; Figures 1 and 2; Figures SI1-SI8, see the ESI). The electrochemical measurements were performed under an atmosphere of argon in anhydrous dichloromethane solutions containing [NBu 4 ][B(C 6 F 5 ) 4 ] (0.1 mol L À 1 ) as supporting electrolyte at 25 °C.…”

“…[11,12] Hitherto, organometallic complexes with functionalized isocyanoferrocenes with a wide range of transition metals (Cr, Rh, Pd, Cu, Au, …) are known. [13][14][15][16][17][18][19][20][21][22][23] In this context, homoleptic complexes of type [Cr(C�NFc) 6 ] and [Cr(C�NFc) 6 ] n + (n = 1, 2; Fc=Fe(η 5 À C 5 H 4 )(η 5 À C 5 H 5 )), [19,20I] as well as barely characterized metal carbonyl isocyanoferrocenes [M(CO) 6-n (C�NFc) n ] (M=Cr, n = 1; M=Mo; n = 2), [18,21] [Fe(η 5 À C 5 H 4 N�CÀ Cr(CO) 5 ) 2 ] [22] and [Cr-(CO) 5 (C�NCHRFc)] (R=Me, i Pr, t Bu, c Hex) [18] exist. The electrochemical investigations are limited to a few of these complexes and were performed with [PF 6 ] À or [BF 4 ] À ions as supporting electrolyte.…”

Towards [NiFe]-hydrogenase biomimetic models that couple H2 binding with functionally relevant intramolecular electron transfers: a quantum chemical study

“…In fact, hydrogenase models containing aromatic isocyanides have been already synthesized and characterized; 79 isocyanoferrocenes are also well-known species [80][81][82] which are the object of current research efforts in the catalysis and materials development areas. 83 Notably, a very recent paper described the methylation route of isocyanoferrocene, which led to the obtainment of 1-isocyano-2-methylferrocene. 83 The substitution of one cyanide group with 1-isocyano-2,1′dimethylferrocene in b − gives rise to model c (Fig.…”

“…83 Notably, a very recent paper described the methylation route of isocyanoferrocene, which led to the obtainment of 1-isocyano-2-methylferrocene. 83 The substitution of one cyanide group with 1-isocyano-2,1′dimethylferrocene in b − gives rise to model c (Fig. 4 and Scheme 3).…”