| Autor: |
Brennessel WW; Department of Chemistry, 120 Trustee Road, University of Rochester, Rochester, NY 14627, USA., Ellis JE; Department of Chemistry, 207 Pleasant Street SE, University of Minnesota, Minneapolis, MN 55455, USA. |
| Abstrakt: |
The reaction of the [K(18-crown-6)(thf) 2 ] 1+ (thf is tetra-hydro-furan) salt of bis-(anthracene)ferrate(-1), or [Fe(C 14 H 10 ) 2 ] - , with 2,6-di-methyl-phenyl isocyan-ide (CNX-yl) in thf resulted in the formation of two new iron isocyanide complexes, namely, [(1,2,3,4-η)-anthracene]tris-(2,6-di-methyl-phenyl isocyanide)iron, [Fe(C 14 H 10 )(C 9 H 9 N) 3 ] or [Fe(1,2,3,4-η-C 14 H 10 )(CNX-yl) 3 ], and {5,6-bis-(2,6-di-methyl-anilino)-3-(2,6-di-methyl-phen-yl)-1,2,7-tris-[(2,6-di-methyl-phen-yl)imino]-3-azoniahept-3-ene-1,4,7-triido}tris-(2,6-di-methyl-phenyl isocyanide)iron tetra-hydro-furan disolvate, [Fe(C 54 H 56 N 6 )(C 9 H 9 N) 3 ]·2C 4 H 8 O or [Fe(C 54 H 56 N 6 )(CNX-yl) 3 ]·2C 4 H 8 O, which were characterized by single-crystal X-ray diffraction. The former is likely an inter-mediate along the path to the known homoleptic [Fe(CNX-yl) 5 ], while the latter contains a tridentate ligand that is formed from the 'coupling' of six CNXyl ligands. A third crystal structure from this reaction, (7-methyl-indol-1-ido-κ N )(1,4,7,10,13,16-hexa-oxa-cyclo-octa-decane-κ 6 O )potassium, [K(C 9 H 8 N)(C 12 H 24 O 6 )] or [K(C 9 H 8 N)(18-crown-6)], contains a 7-methyl-indol-1-ide anion, in which one CNXyl ligand has shed a proton during its reductive cyclization.
(© Brennessel and Ellis 2022.) |
