73Ge NMR Spectroscopy of Organogermanium Compounds
β Scribed by Yoshito Takeuchi; Toshio Takayama
- Publisher
- John Wiley and Sons
- Year
- 2006
- Weight
- 8 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0931-7597
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β¦ Synopsis
Abstract
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## Abstract Highβresolution solidβstate magic angle spinning ^73^Ge NMR spectra of hexavalent germanium compounds, i.e. diiodogermylene (**1a**) and bis(1βpyrrolyl)(__meso__βtetraphenylporphyrinato)germanium (**3a**), were determined. To the best of our knowledge, this is the first example of highβ
## Discussion 73Ge is an esoteric nucleus as far as NMR spectroscopy is concerned, chiefly because of its large quadrupolar moment, which tends to cause excessive broadening of signals, and there are many fewer reported data than for other Group IVB elements.' So far, to our knowledge, no attempt
High-resolution solid-state magic angle spinning (73)Ge NMR spectra of some organogermanium compounds were measured. Most tetrasubstituted germanes with identical substituents exhibited signals except for one case. Tetrasubstituted germanes with two kinds of different but somewhat similar substituen
NMR chemical shifts of 1H, 13C, and 73Ge are reported for a series of monosubstituted aromatic trimethylgermanes of the type XC6H4Ge(CH3)3; X = p-N(CH3)2, p-OCH3, p-OC2H5, p-C(CH3)3, p-Si(CH3)3, p-Ge(CH3)3, p-Sn(CH3)3, p-CH3, m-CH3, -H, m-OCH3, p-Cl, p-Br, m-F, m-CF3, p-CF3, o-OCH3, and o-CH3. The r