The synthesis and cyclic voltammetry of select ferrocene piano-stool isocyanide complexes

Humphrey, Brian D.; Castilo, Raidiri E.; Vega, Amy H.; Feliciano, Argelia; Squires, Marjorie E.

doi:10.1016/j.ica.2011.01.025

Cited by 3 publications

(3 citation statements)

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“…These stretches are only slightly lower than those of the related piano stool complex [CpFe(CNtBu) 3 ](PF 6 ), which features CN stretches of 2170 and 2137 cm −1 . 10 These stretches are consistent with stronger donation from the Tm Me ligand than the Cp ligand. The B−H stretch (2412 cm −1 ) of 1 is similar to that observed in other κ 3 -Tm complexes 7e and is consistent with a B−H bond that is not interacting with the Fe center.…”

Section: ■ Results and Discussionmentioning

confidence: 60%

“…Similarly, the IR spectrum of complex 1 shows CN stretches (2164 and 2118 cm –1 ) that are only slightly shifted from free tert -butylisocyanide (2138 cm –1 ). These stretches are only slightly lower than those of the related piano stool complex [CpFe(CN t Bu) 3 ](PF 6 ), which features CN stretches of 2170 and 2137 cm –1 . These stretches are consistent with stronger donation from the Tm Me ligand than the Cp ligand.…”

Section: Results and Discussionmentioning

confidence: 69%

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Formation of Di-tert-butylurea from a Mononuclear Iron Tris(isocyanide) Complex

et al. 2016

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We report the synthesis and characterization of the tripodal iron tris(isocyanide) complexes [Tm R′ Fe(CNR) 3 ](OTf) (R = tBu, Ad; R′ = Me, Ph, Mes). These complexes generate the corresponding disubstituted ureas when treated sequentially with a reductant (KC 8 ) and a proton source (H 2 O). A series of labeling experiments indicate air to be the source of the urea oxygen, while the urea carbon is derived from the isocyanide. Crossover experiments indicate a key role for H 2 NR in the formation of the disubstituted urea, and we propose a pathway for urea formation that involves a diaminocarbene intermediate that is formed from H 2 NR attack on a bound isocyanide ligand.

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Section: ■ Results and Discussionmentioning

confidence: 60%

Section: Results and Discussionmentioning

confidence: 69%

Formation of Di-tert-butylurea from a Mononuclear Iron Tris(isocyanide) Complex

et al. 2016

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“…More generally speaking, few reactions are known in which a complete substitution of the Cp ligand occurs. For instance, the reactions of ferrocenium with phosphites, 30 secondary phosphines, 31 and isonitriles 32 lead to the half-sandwich complexes [CpFeL 3 ] + . The electrophilic addition to nickelocene affords [CpNi(η 4 -C 5 H 5 R)] + (R = H, CPh 3 , C 7 H 7 ) followed by η 4 -ligand cleavage and the ultimate formation of [Cp 3 Ni 2 ] + , the first reported multidecker compound.…”

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confidence: 99%