Donor-Stabilized Monocarba-Bridged Bis(cyclopentadienyl)alanes

Overview

Journal ChemistryOpen

Specialty Chemistry

Date 2020 Nov 9

PMID 33163326

Citations 1

Authors

Wasim Haider

Volker Huch

Bernd Morgenstern

Andre Schafer

Affiliations

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Abstract

Five monocarba-bridged bis(cyclopentadienyl)aluminum halide NHC and thione complexes and one monocarba-bridged bis(cyclopentadienyl)phosphanylalane NHC complex are reported. The former were synthesized by transmetalation of a C[1]magnesocenophane with the corresponding aluminum(III) chloride and aluminum(III) bromide donor adducts. The phosphanylalane complex was obtained by a subsequent functionalization of the corresponding bromoalane with lithium diphenylphosphide. All complexes were characterized in solution by multinuclear NMR spectroscopy and in the solid state by single crystal X-ray diffraction. Bonding energies of the NHC and thione ligands to the aluminum centres were estimated by DFT calculations.

Citing Articles

Donor-Stabilized Monocarba-Bridged Bis(cyclopentadienyl)alanes.

Haider W, Huch V, Morgenstern B, Schafer A ChemistryOpen. 2020; 9(11):1095-1099.

PMID: 33163326 PMC: 7607447. DOI: 10.1002/open.202000191.

References

Zijlstra H, Pahl J, Penafiel J, Harder S . "Masked" Lewis-acidity of an aluminum α-phosphinoamide complex. Dalton Trans. 2017; 46(11):3601-3610. DOI: 10.1039/c7dt00318h. View

Hengesbach F, Jin X, Hepp A, Wibbeling B, Wurthwein E, Uhl W . Activation of isocyanates and carbon dioxide by a monomeric aluminium hydrazide as an active Lewis pair. Chemistry. 2013; 19(41):13901-9. DOI: 10.1002/chem.201302179. View

Bodensteiner M, Timoshkin A, Peresypkina E, Vogel U, Scheer M . Selective dimerization of Lewis-acid/base-stabilized phosphanylalanes. Chemistry. 2012; 19(3):957-63. DOI: 10.1002/chem.201203074. View

Urwin S, Rogers D, Nichol G, Cowley M . Ligand coordination modulates reductive elimination from aluminium(iii). Dalton Trans. 2016; 45(35):13695-9. DOI: 10.1039/c6dt02698b. View

Hofmann A, Lamprecht A, Jimenez-Halla J, Troster T, Dewhurst R, Lenczyk C . Lewis-Base-Induced Disproportionation of a Dialane. Chemistry. 2018; 24(45):11795-11802. DOI: 10.1002/chem.201802300. View

Haider W, Huch V, Schafer A . Lewis base complexes of sila[2]aluminocenophanes. Dalton Trans. 2018; 47(31):10425-10428. DOI: 10.1039/c8dt02491j. View

Doddi A, Peters M, Tamm M . N-Heterocyclic Carbene Adducts of Main Group Elements and Their Use as Ligands in Transition Metal Chemistry. Chem Rev. 2019; 119(12):6994-7112. DOI: 10.1021/acs.chemrev.8b00791. View

Nesterov V, Reiter D, Bag P, Frisch P, Holzner R, Porzelt A . NHCs in Main Group Chemistry. Chem Rev. 2018; 118(19):9678-9842. DOI: 10.1021/acs.chemrev.8b00079. View

Vogel U, Timoshkin A, Scheer M . Lewis Acid/Base Stabilized Phosphanylalane and -gallane This work was supported by the Deutsche Forschungsgemeinschaft and the Fonds der Chemischen Industrie. A.Y.T. is grateful to the Alexander von Humboldt Foundation for a research fellowship. . Angew Chem Int Ed Engl. 2002; 40(23):4409-4412. DOI: 10.1002/1521-3773(20011203)40:23<4409::aid-anie4409>3.0.co;2-f. View

10.

Boudreau J, Courtemanche M, Fontaine F . Reactivity of Lewis pairs (R2PCH2AlMe2)2 with carbon dioxide. Chem Commun (Camb). 2011; 47(39):11131-3. DOI: 10.1039/c1cc14641f. View

11.

Power P . pi-Bonding and the Lone Pair Effect in Multiple Bonds between Heavier Main Group Elements. Chem Rev. 2002; 99(12):3463-3504. DOI: 10.1021/cr9408989. View

12.

Wirtz L, Haider W, Huch V, Zimmer M, Schafer A . Magnesocenophane-Catalyzed Amine Borane Dehydrocoupling. Chemistry. 2020; 26(28):6176-6184. PMC: 7318289. DOI: 10.1002/chem.202000106. View

13.

Andrews P, Latham C, Magre M, Willcox D, Woodward S . ZrCl2(η-C5Me5)2-AlHCl2·(THF)2: efficient hydroalumination of terminal alkynes and cross-coupling of the derived alanes. Chem Commun (Camb). 2013; 49(15):1488-90. DOI: 10.1039/c2cc37537k. View

14.

Haider W, Huch V, Morgenstern B, Schafer A . Donor-Stabilized Monocarba-Bridged Bis(cyclopentadienyl)alanes. ChemistryOpen. 2020; 9(11):1095-1099. PMC: 7607447. DOI: 10.1002/open.202000191. View

15.

Haider W, Andrada D, Bischoff I, Huch V, Schafer A . A bis(aluminocenophane) with a short aluminum-aluminum single bond. Dalton Trans. 2019; 48(40):14953-14957. DOI: 10.1039/c9dt03470f. View

16.

Muller C, Stahlich A, Wirtz L, Gretsch C, Huch V, Schafer A . Carbene Complexes of Stannocenes. Inorg Chem. 2018; 57(14):8050-8053. DOI: 10.1021/acs.inorgchem.8b01432. View

17.

Sheldrick G . A short history of SHELX. Acta Crystallogr A. 2007; 64(Pt 1):112-22. DOI: 10.1107/S0108767307043930. View