Lambda 5 spectrometer

All experiments
were performed under a nitrogen atmosphere using
standard Schlenk techniques. Solvents were dried using a column solvent
purification system.^{75 (link)} Me₃SiCl
(95%), GeCl₄ (>98%), KOtBu (>98%),
ClCOMes
(99%), ClCO(oTol) (98%), C₆H₄-1-4–(COCl)₂ (>99%), C₆H₄-1-3–(COCl)₂ (>99%), Br(CH₂)₄Br (99%), MeI (>99%) and [18]-crown-6 (99%), toluene (≥99%),
toluene-d₈ (99 atom % D), THF-d₈ (99.5 atom % D), CDCl₃ (99.8 atom % D), butyl acrylate
(≥99%), styrene (≥99%), and methyl methacrylate (99%)
were used without any further purification. Tetrakis(trimethylsilyl)germane,^{76 (link)} tetraacylgermane 1 and FCOMes were
prepared according to published procedures.^{54 (link)1}H, ¹³C, and ²⁹Si NMR spectra
were recorded on either a Varian INOVA 300 spectrometer in C₆D₆, THF-d₈, or CDCl₃ solutions and referenced versus TMS using the internal ²H-lock signal of the solvent. HRMS spectra were run on a Kratos Profile
mass spectrometer. Infrared spectra were obtained on a Bruker Alpha-P
Diamond ATR Spectrometer from the solid sample. Melting points were
determined using a Stuart SMP50 apparatus and are uncorrected. Elemental
analyses were carried out on a Hanau Vario Elementar EL apparatus.
UV absorption spectra were recorded on a PerkinElmer Lambda 5 spectrometer.

All experiments
were performed under a nitrogen atmosphere using
standard Schlenk techniques. Solvents were dried using a column solvent
purification system.^{33 (link)} ClSiMe₃ (95%), KOtBu (>98%), ClCOMes (99%), ClCOAd (98%)
and 18-cr-6 (99%), were used without any further purification. ¹H, ¹³C, and ²⁹Si NMR spectra were recorded
on a Varian INOVA 300 spectrometer in C₆D₆,
THF-d₈, or CDCl₃ solutions
and were referenced versus TMS using the internal ²H-lock
signal of the solvent. HRMS spectra were obtained on a Kratos Profile
mass spectrometer. Infrared spectra were obtained on a Bruker Alpha-P
Diamond ATR spectrometer from the solid sample. Melting points were
determined using a Stuart SMP50 apparatus and are uncorrected. Elemental
analyses were carried out on a Hanau Vario Elementar EL apparatus.
UV absorption spectra were recorded on a PerkinElmer Lambda 5 spectrometer.