The microwave spectra of hydroxylamine and its deuterated species: NH 2 OH, OD, NHDH, ND NHDOD OD have been observed analyzed. Their rotational constants determined. molecular structure is determined to be r (N–H)=1.016±0.008Å, (N–O)=1.453±0.002Å, (O–H)=1.962±0.005Å, \(\theta(\angle\text{HNH}){=}107^{\circ}06'{\pm}30'\), \(\theta(\angle\text{HNO}){=}103^{\circ}15'{\pm}30'\) \(\theta(\angle\text{NOH}){=}101^{\circ}22'{\pm}30'\). dipole moment quadrupole coupling OH are also No splitting due...

We report the first detection of rotational transitions methyl formate (HCOOCH3) in torsionally excited state (vt = 1). Recent progress on assignment laboratory spectra made it possible for us to assign about 20 unidentified lines Orion KL from previous line surveys below 200 GHz formate. The temperature and column density obtained were 44 ± 10 K (8.6 3.2) × 1014 cm-2, respectively. They compared with those ground state.

view Abstract Citations (35) References (10) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS The Microwave Spectrum of Propionitrile (C 2H 5CN) in the Frequency Range from 8 to 200 GHz Fukuyama, Yoshimitsu ; Odashima, Hitoshi Takagi, Kojiro Tsunekawa, Shozo rotational spectrum propionitrile (C2H5CN) has been measured frequency range GHz, where 1461 transitions with J ≤ 70 and Ka 21 ground vibrational state have newly assigned. A total 2418 including 957...

An Evenson-type tunable far-infrared spectrometer has been built to measure rotational transition frequencies of LiH up 5 THz. R( J ) transitions with =0 10 ( v =0) and =1 =1) 7 LiH, those 9 6 have measured. Frequency measurements an accuracy tens kHz enable us improve parameters LiH.

The microwave spectrum of deuterated hydrazine has been investigated in the frequency range 8–105 GHz. There are three species for hydrazine-1, 2- d 2 and rotational constants determined to be A=102309.0 MHz, B=21306.7 MHz C=20356.5 A=100173.8 B=20930.5 C=20843.6 A=98246.3 B=21529.1 C=20404.8 MHz. From Stark effect low- J lines dipole moment is found 1.90 D. structural parameters obtained using N–H=1.008±0.008 Å, N–N=1.447±0.005 \(\angle\)HNH=113°16'±3° , \(\angle\)NNH=109°09'±50' dihedral...

The cis-methyl formate molecule is a well known found in interstellar space. Recently, rotational lines of methyl the first CH3 torsional excited state were observed Orion KL and W51e2. It quite natural to observe even higher vibrational states considering temperature estimated Maeda et al. reported results on laboratory spectroscopy including spectral analysis its second state. Their assignments limited series a-type R-branch low Ka b-type transitions, many assigned are excluded...

We have studied the characteristics of ruthenium etching reactions and etch selectivity Ru to photoresist in ozone gas. The was etched at a maximum rate 950 nm/min between 100 150 °C by formation volatile product, RuO4. However, decreased temperatures above °C, since RuO2 on surface hindered reaction. A comparison reaction that revealed predominantly ozone, whereas atomic oxygen. This difference behavior enables us control photoresist. Below Ru/photoresist higher than 40 due small amount...

Microwave spectrum of hydrazine- d 4 (N 2 D ) has been observed in the range from 8 to 100 GHz. The inversion splitting is found be 443 MHz, which compared with 7974 MHz N H . rotational constants have determined A =74724.3 B =18501.9 C =18437.5 and barrier height 2120 cm -1 by using a Manning potential function.

The microwave spectrum of the normal hydrazine N 2 H 4 is studied in frequency range extended up to 130 GHz. eight series Q -branch transition Δ J =0, K =1←0 are observed. It found that inversion splitting for level expressed by form ν inv =16040.2–1.53× ( +1)-25.9 (MHz). rotational constants obtained be A =143467.6 MHz, B =24083.0 MHz and C =24070.3 MHz. height barrier internal rotation determined V =1240±50 cm -1 on assumption twofold potential barrier.

The microwave spectrum of CH318OH has been observed in the frequency range from 95 to 200 GHz. This observation is an extension one made by Hoshino et al. below Observed lines are those with J ≤ 39, K 8 for A-species and 42, |K| 7 E-species torsional ground state (vt = 0) some excited 1-3). A total 533 vt 2, have fitted 66 molecular constants using reduced Hamiltonian (Tang & Takagi) a root mean square (rms) 0.271 MHz, where E substates treated simultaneously. Three unidentified interstellar...

Microwave sidebands of CO2 laser lines were used in a sub-Doppler spectrometer to observe spectrum the C—O stretching fundamental band (vCO=1←0) methanol. Frequencies more than 200 vibration-rotation measured with an accuracy better 0.20 MHz. Sixty-one blended spectral Fourier-transform resolved resolution 0.2 For transitions involving A-species levels K=2, 3, and 4 vt=0 state K=2 vt=1 state, 64 doublet arising from asymmetry splittings observed. From these observed calculated ground-state...