⁷³Ge Nuclear Magnetic Resonance Spectroscopy of Germanium Compounds

Table 6

⁷³Ge NMR spectral data for tetrahedrally substituted germanes Ge(OR)₄ and Ge(SR)₄^a.

Compound	𝛿  ^73Ge (ppm)	𝑣1/2 (Hz)
Ge[O(CH2)3NEt2]4 (14)	n/r
Ge[O(CH2)3NMe2]4 (15)	n/r
Ge[O(CH2)3NMe2]4 (16)	−45	103
Ge[O(CH2)4NMe2]4 (17)	−44	101
Ge[O(CH2)2Pr^𝑖]4 (18)	−41	51
Ge[O(CH2)3OMe]4 (19)	−43	75
Ge[O(CH2)2OMe]4 (20)	−51	68
Ge[O(CH2)2CN]4 (21)	−50	95
Ge[SBu^𝑛]4 (22)	120	39
Ge[SPr^𝑖]4 (23)	138	37
Ge[S(CH2)2NMe2]4 (24)	141	79

^aData are referenced to Me₄Ge and are taken from [8]. n/r: no resonance observed. n/a: not reported.