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

Mujahuddin M SiddiquiSamya BanerjeeSanjoy BoseSamir Kumar Sarkar Sandeep Kumar GuptaJohannes KretschNico GrawRegine Herbst-Irmer Dietmar Stalke Sayan Dutta Debasis Koley Herbert W Roesky

Published in: Inorganic chemistry (2020)

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(NtBu)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.

Keyphrases

mass spectrometry
high resolution
density functional theory
ionic liquid
single molecule
pet ct
molecular dynamics
room temperature
magnetic resonance
peripheral blood
quantum dots
oxide nanoparticles
contrast enhanced