TY - JOUR
T1 - Accessing iron amides from dimesityliron
AU - Sundberg, Jonas
AU - Vad, Mads Sørensen
AU - McGrady, John E.
AU - Björemark, Per-Martin
AU - Håkansson, Mikael
AU - McKenzie, Christine Joy
PY - 2015
Y1 - 2015
N2 - A new phase of dimesityliron has been crystallized from diethylether; the crystal structure shows a dinuclear complex with co-crystallized solvent. Crystalline [Fe
2(mes)
2(μ
2-mes)
2]·Et
2O is a convenient starting material and reacts with di(2-pyridyl)amine to yield rare iron di(2-pyridyl)amido complexes. Crystal structures of air-sensitive [Fe
2(mes)
2(dpa)
2], [Fe
2(dpa)
3Cl] and [Fe
4(dpa)
6O] were determined. [Fe
4(dpa)
6O] is known, and the dinuclear complexes [Fe
2(mes)
2(dpa)
2] and [Fe
2(dpa)
3Cl] represent only the second and third reports of homometallic iron dpa
- complexes. Long Fe ... Fe distances of 3.043(1) and 3.104(2) Å in [Fe
2(mes)
2(dpa)
2] and [Fe
2(dpa)
3Cl], respectively, and very unsymmetrically coordinated amido groups, indicate that the iron atoms are not involved in M-M bonding. This fact, and the relatively low coordination numbers of the high spin Fe(II) atoms are consistent with sensitivity of these compounds towards O
2. DFT calculations were employed to rationalize the formation of the unusual architectures displayed by the dpa
- complexes of iron.
AB - A new phase of dimesityliron has been crystallized from diethylether; the crystal structure shows a dinuclear complex with co-crystallized solvent. Crystalline [Fe
2(mes)
2(μ
2-mes)
2]·Et
2O is a convenient starting material and reacts with di(2-pyridyl)amine to yield rare iron di(2-pyridyl)amido complexes. Crystal structures of air-sensitive [Fe
2(mes)
2(dpa)
2], [Fe
2(dpa)
3Cl] and [Fe
4(dpa)
6O] were determined. [Fe
4(dpa)
6O] is known, and the dinuclear complexes [Fe
2(mes)
2(dpa)
2] and [Fe
2(dpa)
3Cl] represent only the second and third reports of homometallic iron dpa
- complexes. Long Fe ... Fe distances of 3.043(1) and 3.104(2) Å in [Fe
2(mes)
2(dpa)
2] and [Fe
2(dpa)
3Cl], respectively, and very unsymmetrically coordinated amido groups, indicate that the iron atoms are not involved in M-M bonding. This fact, and the relatively low coordination numbers of the high spin Fe(II) atoms are consistent with sensitivity of these compounds towards O
2. DFT calculations were employed to rationalize the formation of the unusual architectures displayed by the dpa
- complexes of iron.
U2 - 10.1016/j.jorganchem.2015.03.015
DO - 10.1016/j.jorganchem.2015.03.015
M3 - Journal article
SN - 0022-328X
VL - 786
SP - 40
EP - 47
JO - Journal of Organometallic Chemistry
JF - Journal of Organometallic Chemistry
ER -