A digalla[1.1]ferrocenophane and its coordination chemistry: Synthesis and structure of [{Fe(eta(5)-C5H4)(2)}(2){GaMe}(2)] and of the adducts [{Fe(eta(5)-C5H4)(2)}(2)GaMe(D)}(2)] (D = monodentate donor) and [Fe(eta(5)-C5H4)(2)}(2){GaMe}(2)D] (D = bidentate donor)

Althoff A, Jutzi P, Lenze N, Neumann B, Stammler A, Stammler H-G (2003)
ORGANOMETALLICS 22(13): 2766-2774.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
Download
Es wurden keine Dateien hochgeladen. Nur Publikationsnachweis!
Autor*in
Althoff, A; Jutzi, PeterUniBi; Lenze, N; Neumann, B; Stammler, A; Stammler, Hans-GeorgUniBi
Abstract / Bemerkung
Gentle warming of 1,1'-bis(dimethylgallyl)ferrocene (1) leads to the formation of trimethylgallium and the thermolabile compound [{Fe(eta(5)-C5H4)(2)}(2){GaMe}(2)] (2), a [1.1] ferrocenophane featuring group 13 elements in bridging positions. While NMR data for 2 prove a dynamic structure in solution, X-ray data reveal an anti conformation of the ferrocenophane framework in the solid state. The anti conformation is maintained in the thermolabile adducts 2a-g, which are obtained from 2 and the donors diethyl ether (2a), pyridine (2b), pyrimidine (2c), quinoxaline (2d), DMSO (2e), pyrazine (2f), and dioxane (2g), by donor-exchange reactions (2b-g) or on gentle warming of the respective donor adducts of 1. Rodlike polymers are formed either by interaction of 2 with bidentate donors (2f,g) or by :pi-stacking effects of aromatic molecules acting as monodentate donors (2b-d). Steric requirements inhibit the complex formation between 2 and the donor phenazine. A cyclic voltammogram of 2b in pyridine reveals two reversible oxidation steps at -314 and - 114 mV, indicating only weak electron delocalization in the cationic species. The formation of 2 from 1 has been shown to be reversible and thus is an example of an application of "dynamic covalent chemistry" as synthetic strategy.
Erscheinungsjahr
2003
Zeitschriftentitel
ORGANOMETALLICS
Band
22
Ausgabe
13
Seite(n)
2766-2774
ISSN
0276-7333
eISSN
1520-6041
Page URI
https://pub.uni-bielefeld.de/record/1611170

Zitieren

Althoff A, Jutzi P, Lenze N, Neumann B, Stammler A, Stammler H-G. A digalla[1.1]ferrocenophane and its coordination chemistry: Synthesis and structure of [{Fe(eta(5)-C5H4)(2)}(2){GaMe}(2)] and of the adducts [{Fe(eta(5)-C5H4)(2)}(2)GaMe(D)}(2)] (D = monodentate donor) and [Fe(eta(5)-C5H4)(2)}(2){GaMe}(2)D] (D = bidentate donor). ORGANOMETALLICS. 2003;22(13):2766-2774.
Althoff, A., Jutzi, P., Lenze, N., Neumann, B., Stammler, A., & Stammler, H. - G. (2003). A digalla[1.1]ferrocenophane and its coordination chemistry: Synthesis and structure of [{Fe(eta(5)-C5H4)(2)}(2){GaMe}(2)] and of the adducts [{Fe(eta(5)-C5H4)(2)}(2)GaMe(D)}(2)] (D = monodentate donor) and [Fe(eta(5)-C5H4)(2)}(2){GaMe}(2)D] (D = bidentate donor). ORGANOMETALLICS, 22(13), 2766-2774. doi:10.1021/om030115m
Althoff, A., Jutzi, P., Lenze, N., Neumann, B., Stammler, A., and Stammler, H. - G. (2003). A digalla[1.1]ferrocenophane and its coordination chemistry: Synthesis and structure of [{Fe(eta(5)-C5H4)(2)}(2){GaMe}(2)] and of the adducts [{Fe(eta(5)-C5H4)(2)}(2)GaMe(D)}(2)] (D = monodentate donor) and [Fe(eta(5)-C5H4)(2)}(2){GaMe}(2)D] (D = bidentate donor). ORGANOMETALLICS 22, 2766-2774.
Althoff, A., et al., 2003. A digalla[1.1]ferrocenophane and its coordination chemistry: Synthesis and structure of [{Fe(eta(5)-C5H4)(2)}(2){GaMe}(2)] and of the adducts [{Fe(eta(5)-C5H4)(2)}(2)GaMe(D)}(2)] (D = monodentate donor) and [Fe(eta(5)-C5H4)(2)}(2){GaMe}(2)D] (D = bidentate donor). ORGANOMETALLICS, 22(13), p 2766-2774.
A. Althoff, et al., “A digalla[1.1]ferrocenophane and its coordination chemistry: Synthesis and structure of [{Fe(eta(5)-C5H4)(2)}(2){GaMe}(2)] and of the adducts [{Fe(eta(5)-C5H4)(2)}(2)GaMe(D)}(2)] (D = monodentate donor) and [Fe(eta(5)-C5H4)(2)}(2){GaMe}(2)D] (D = bidentate donor)”, ORGANOMETALLICS, vol. 22, 2003, pp. 2766-2774.
Althoff, A., Jutzi, P., Lenze, N., Neumann, B., Stammler, A., Stammler, H.-G.: A digalla[1.1]ferrocenophane and its coordination chemistry: Synthesis and structure of [{Fe(eta(5)-C5H4)(2)}(2){GaMe}(2)] and of the adducts [{Fe(eta(5)-C5H4)(2)}(2)GaMe(D)}(2)] (D = monodentate donor) and [Fe(eta(5)-C5H4)(2)}(2){GaMe}(2)D] (D = bidentate donor). ORGANOMETALLICS. 22, 2766-2774 (2003).
Althoff, A, Jutzi, Peter, Lenze, N, Neumann, B, Stammler, A, and Stammler, Hans-Georg. “A digalla[1.1]ferrocenophane and its coordination chemistry: Synthesis and structure of [{Fe(eta(5)-C5H4)(2)}(2){GaMe}(2)] and of the adducts [{Fe(eta(5)-C5H4)(2)}(2)GaMe(D)}(2)] (D = monodentate donor) and [Fe(eta(5)-C5H4)(2)}(2){GaMe}(2)D] (D = bidentate donor)”. ORGANOMETALLICS 22.13 (2003): 2766-2774.