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Cited by 17 publications
(13 citation statements)
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References 30 publications
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“…The tetrairon units, found in 3-7 are similar to those found in the butterfly [Fe 4 C(CO) 12 ] 2-, 29 and in 1, 7 including the carbonyl disposition (three for each iron vertex), the short hinges (the Fe1- Fe2 distances are all in the short range 2.52-2.56 A ˚) and the differences in the Fe-C bonds, which are shorter for the wing tips (1.82-1.83 A ˚). However, small differences can be appreciated in the Fe1-C distances of the pyramidal (3-5) and the octahedral (6-7) clusters: in the former Fe1-C are the longest by far (> 1.95 A ˚, comparable with that found for the apical iron in the homometallic [Fe 5 C(CO) 14 ] 2-19 ).…”
Section: The Solid State Structuressupporting
confidence: 75%
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“…The tetrairon units, found in 3-7 are similar to those found in the butterfly [Fe 4 C(CO) 12 ] 2-, 29 and in 1, 7 including the carbonyl disposition (three for each iron vertex), the short hinges (the Fe1- Fe2 distances are all in the short range 2.52-2.56 A ˚) and the differences in the Fe-C bonds, which are shorter for the wing tips (1.82-1.83 A ˚). However, small differences can be appreciated in the Fe1-C distances of the pyramidal (3-5) and the octahedral (6-7) clusters: in the former Fe1-C are the longest by far (> 1.95 A ˚, comparable with that found for the apical iron in the homometallic [Fe 5 C(CO) 14 ] 2-19 ).…”
Section: The Solid State Structuressupporting
confidence: 75%
“…The comparison also allows us to conclude that the Fe-Cu interactions must be very weak and can be easily accommodated, as also observed in the halide substituted 1 and [{Fe 4 C(CO) 12 Cu 2 (m-Cl)} 2 ] 2-. 7 The solid state structures of 6 and 7 were obtained on the [PPh 4 ] 2 6 and [NEt 4 ] 2 7•CH 2 Cl 2 salts. The two species are shown in Fig.…”
Section: The Solid State Structuresmentioning
confidence: 99%
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“…Thereafter, other carbonyliron carbide clusters were discovered, and they may be grouped into three main categories: (1) tetrairon clusters with a butterfly structure and a semi‐exposed carbide, such as [Fe 4 C(CO) 13 ], [Fe 4 C(CO) 12 ] 2– , [HFe 4 C(CO) 12 ] – ,, [HFe 4 CH(CO) 12 ]; (2) pentairon clusters with a square‐pyramidal structure and a basal semi‐exposed carbide, for example, [Fe 5 C(CO) 15 ], [Fe 5 C(CO) 14 ] 2– ; (3) the hexairon octahedral [Fe 6 C(CO) 16 ] 2– cluster featuring a fully interstitial carbide atom. Iron carbide clusters have been thoroughly investigated and represented milestones for the understanding of the reactivity and activation of CO and carbides on metal surfaces and nanoclusters, leading to major contributions to the development of the cluster‐surface analogy Moreover, they have been widely employed for the preparation of miscellaneous dimetallic carbonyl carbide clusters …”
Section: Introductionmentioning
confidence: 99%
“…‡ X-Ray analysis disclosed a tetrameric structure (Fig. 1) for [ Electronic conductivity along the super chains is likely, since cyclic voltammetry shows that the two cluster units of a soluble [{Fe 5 CCu(CO) 15 } 2 (pyz)] 2dimer electronically communicate via the bridging pyz ligand, 18 as it is the case of related dimers 19,20 and chains 21 of coordination compounds. Attempts to measure the conductivity in pellets of the above super chains have been hindered either by the extreme fragility of their pressed pellets or by their ready degradation due to loss of chlatrated THF solvent.…”
mentioning
confidence: 99%