Cyclic (Alkyl)(Amino)Carbene-Stabilized Aluminum and Gallium Radicals Based on Amidinate Scaffolds

Cyclic (Alkyl)(Amino)Carbene-Stabilized Aluminum and Gallium Radicals Based on Amidinate Scaffolds

Neutral, mononuclear aluminum and gallium radicals, stabilized by cyclic (alkyl)­(amino)­carbene (cAAC), were synthesized. LMCl2 upon reduction with KC8 in the presence of cAAC afforded the radicals LMCl­(cAAC), where L = PhC­(N t Bu)2 and M = Al (1), Ga (2). The radicals were characterized by X-ray...

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Veröffentlicht in:Inorganic chemistry 2020-08, Vol.59 (16), p.11253-11258
Hauptverfasser: Siddiqui, Mujahuddin M, Banerjee, Samya, Bose, Sanjoy, Sarkar, Samir Kumar, Gupta, Sandeep K, Kretsch, Johannes, Graw, Nico, Herbst-Irmer, Regine, Stalke, Dietmar, Dutta, Sayan, Koley, Debasis, Roesky, Herbert W
Format: Artikel
Sprache:eng
Schlagworte:
Chemistry
Chemistry, Inorganic & Nuclear
Physical Sciences
Science & Technology
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Zusammenfassung:Neutral, mononuclear aluminum and gallium radicals, stabilized by cyclic (alkyl)­(amino)­carbene (cAAC), were synthesized. LMCl2 upon reduction with KC8 in the presence of cAAC afforded the radicals LMCl­(cAAC), where L = PhC­(N t Bu)2 and M = Al (1), Ga (2). The radicals were characterized by X-ray crystallography, electron paramagnetic resonance (EPR) spectroscopy, and mass spectrometry. EPR, SQUID measurement, and computational calculations confirmed paramagnetism of the radicals with unpaired spin mainly on cAAC.
ISSN:0020-1669
1520-510X
DOI:10.1021/acs.inorgchem.0c01913