Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2023 Apr 25;29(24):e202300340.
doi: 10.1002/chem.202300340. Epub 2023 Mar 24.

NHC-Stabilised Parent Tripentelyltrielanes

Robert Szlosek  1 , Michael A K Weinhart  1 , Gábor Balázs  1 , Michael Seidl  1 , Lisa Zimmermann  1 , Manfred Scheer  1
Affiliations

NHC-Stabilised Parent Tripentelyltrielanes

Robert Szlosek et al. Chemistry. .

Abstract

A missing family of the extremely air sensitive tripentelyltrielanes was discovered. Their stabilisation was achieved by using the bulky NHC IDipp (NHC=N-heterocyclic carbene, IDipp=1,3-bis(2,6-diisopropylphenyl)-imidazolin-2-ylidene). The tripentelylgallanes and tripentelylalanes IDipp ⋅ Ga(PH2 )3 (1 a), IDipp ⋅ Ga(AsH2 )3 (1 b), IDipp ⋅ Al(PH2 )3 (2 a) and IDipp ⋅ Al(AsH2 )3 (2 b) were synthesised by salt metathesis of IDipp ⋅ ECl3 (E=Al, Ga, In) with alkali metal pnictogenides such as NaPH2 /LiPH2 ⋅ DME and KAsH2 , respectively. Moreover, the detection of the first NHC-stabilised tripentelylindiumane IDipp ⋅ In(PH2 )3 (3) was possible by multinuclear NMR spectroscopy. Initial investigations of the coordination ability of these compounds resulted in the successful isolation of the coordination compound [IDipp ⋅ Ga(PH2 )2 (μ3 -PH2 {HgC6 F4 }3 )] (4) by reaction of 1 a with (HgC6 F4 )3 . The compounds were characterised by multinuclear NMR spectroscopy as well as single crystal X-ray diffraction studies. Supporting computational studies highlight the electronic features of the products.

Keywords: N-heterocyclic carbene; aluminium; gallium; indium; phosphorus.

PubMed Disclaimer

References

    1. None
    1. A. B. Burg, H. I. Schlesinger, J. Am. Chem. Soc. 1937, 59, 780-787;
    1. J. Gay-Lussac, J. Thenard, Mem. Phys. Chim. Soc. d′Arcueil 1809, 2, 210-211;
    1. A. Stock, E. Pohland, Chem. Ber. 1926, 59, 2210-2215.
    1. C. E. Housecroft, A. Sharpe, Inorganic Chemistry, 4. Aufl., Pearson, New York, 2012, p. 859-860.

LinkOut - more resources