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Structure Data of Free Polyatomic Molecules
224
MW
C 2H 2O
Ketene
Ethenone
rs
C=O
C=C
C–H
Å
1.1615(131)
1.3142(259)
1.0793(64)
Atom
O
C(2)
C(1)
H
|as| [Å]
1.182805
0.0209
1.292938
1.816181
θs
H–C–H
C2v
H
deg
122.11(121)
C
C O
H
bs [Å]
0.0
0.0
0.0
±0.944260
The rotational spectrum of H2CC17O was observed for the first time.
Guarnieri, A., Huckauf, A.: Z. Naturforsch. A 56 (2001) 440.
II/25B(3, 624)
Landolt-Börnstein
New Series II/28B