K
Ko-ichi Sugawara
Researcher at National Chemical Laboratory
Publications - 36
Citations - 585
Ko-ichi Sugawara is an academic researcher from National Chemical Laboratory. The author has contributed to research in topics: Infrared & Infrared spectroscopy. The author has an hindex of 15, co-authored 36 publications receiving 573 citations.
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Observation of the infrared spectra of the NH2-stretching vibration modes of anilineArn (n = 1, 2) clusters in a supersonic jet using REMPI
TL;DR: In this paper, the infrared spectra of the NH2 stretching modes of anilinen (n = 1, 2) clusters and corresponding cluster cations in a supersonic jet have been observed using an IR-REMPI double resonance technique.
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Infrared Depletion Spectroscopy of the Aniline Dimer
Ko-ichi Sugawara,Jun Miyawaki,Taisuke Nakanaga,Harutoshi Takeo,Gerhard Lembach,S. Djafari,Hans-Dieter Barth,Bernd Brutschy +7 more
TL;DR: In this article, a configuration with mutual NH2−π bonds and phenyl groups stacked in parallel is suggested for ground-state aniline dimers, formed in a supersonic jet, by combining infrared laser excitation and resonant two-photon ionization/time-of-flight mass spectrometry.
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Infrared depletion spectroscopy of aniline-nh3 and aniline-nh3+ clusters in a supersonic jet
TL;DR: In this article, the vibrational spectra of aniline-NH 3 and NH 3 + clusters in the NH stretching vibration region have been measured using infrared depletion spectroscopic techniques combined with mass spectrometry.
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Infrared spectroscopy of aniline-X (X = N2, CH4, CHF3, CO) clusters and their corresponding cluster cations in the NH2-stretching vibration region
Reiner P. Schmid,P.K. Chowdhury,J. Miyawaki,Fumiyuki Ito,Ko-ichi Sugawara,Taisuke Nakanaga,Harutoshi Takeo,Harold Jones +7 more
TL;DR: In this article, the NH 2 -stretching vibrational modes of four different aniline-X clusters (X = N 2, CH 4, CHF 3, CO) and their corresponding cluster cations were investigated by ion-depletion spectroscopy.
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Rate constant measurements for reactions of SiH3 with O2, NO and NO2 using time-resolved infrared diode laser spectroscopy
TL;DR: In this paper, the rate constants for the reactions SiH3+O2, SiH 3+NO2 and Si H3+NO+N2 have been measured over the pressure range 1-10 Torr at 300 K, by monitoring a siH3 absorption line at 719.931 cm−1 using time-resolved diode laser spectroscopy.