Assertion: germanium's compound | /r/HasProperty | synthesised by james crafts
Facets:
value: similarly
type: DEGREE
value: in 1863
type: TEMPORAL
Source sentences:
text: Similarly, the first organosilicon compound, tetraethylsilane, was synthesised by Charles Friedel and James Crafts in 1863, but detailed characterisation of organosilicon chemistry was only done in the early 20th century by Frederic Kipping.