
Journal of Chemical Physics p. 5430 - 5435 (1981)
Update date:2022-08-30
Topics:
Kawashima, Yoshiyuki
Takeo, Harutoshi
Matsumura, Chi
The microwave spectrum of BH2OH, a transient intermediate in the reaction between diborane and water, has been detected and analyzed.This molecule has also been found in the reaction between diborane and oxygen.The lifetime of BH2OH in a copper waveguide cell is a few seconds, which is much shorter than that of BH(OH)2.The rotational and centrifugal distortion constants have been getermined for the 11BH2OH, 10BH2OH, 11BD2OD< and 11BH2 18OH species.From the rotational constants the molecular structure has been determined as r(B-O) = 1.352(4) Angstroem, r(O-H) = 0.967(14) Angstroem, <*>BOH = 112.0(17)deg, <*>HcBO = 121.8(8)deg, and<*>HtBO = 117.2(8) deg, the r(B-H) = 1200 Angstroem being assumed.For the normal species, the dipole moments have been determined as μa = 0.497(7)D, μb = 1.423(15)D, and μtotal = 1.506 D.The quadrupole coupling constants have also been determined.
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