Definitive evidence for the existence of a long-lived vinylidene radical cation, H2C=C+.

被引：22
|
作者：
Hayakawa, S
Takahashi, M
Arakawa, K
Morishita, N
机构：
[1] Univ Osaka Prefecture, Coll Integrated Arts & Sci, Sakai, Osaka 5998531, Japan
[2] Japan Atom Energy Res Inst, Takasaki Radiat Chem Res Estab, Takasaki, Gumma 3701292, Japan
来源：
JOURNAL OF CHEMICAL PHYSICS | 1999年 / 110卷 / 06期
关键词：
D O I：
10.1063/1.477875
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Charge inversion mass spectra of C2H2+ ions produced by electron impact from HC=CH and CH2=CCl2 were measured using K and Cs targets. Clear differences in the charge inversion spectra between HC=CH and CH2=CCl2 indicate that the C2H2+ ion formed from CH2CCl2 is H2C=C+. The lifetime of H2C=C+. is found to be longer than 8.5 mu s, and the state is proposed to be the B-2(1) ground- state rather than the (4)A(2) state. (C) 1999 American Institute of Physics. [S0021-9606(99)02006-1].
引用
收藏
页码：2745 / 2748
页数：4
相关论文
共 50 条
  • [1] Definitive evidence for the existence of a long-lived vinylidene radical cation, H2C=C+.
    Hayakawa, Shigeo
    Takahashi, Mitsuhito
    Arakawa, Kazuo
    Morishita, Norio
    Journal of Chemical Physics, 1999, 110 (2-12): : 2745 - 2748
  • [2] Definitive evidence for the existence of a long-lived vinylidene radical cation, H2CqqC+
    Hayakawa, Shigeo
    Takahashi, Mitsuhito
    Arakawa, Kazuo
    Morishita, Norio
    Journal of Chemical Physics, 1999, 110 (06):
  • [3] THE GENERATION AND IDENTIFICATION OF THE TRANSIENT VINYLIDENE CATION, [H2C=C]+
    HOLMES, JL
    SZULEJKO, JE
    CHEMICAL PHYSICS LETTERS, 1984, 107 (03) : 301 - 303
  • [4] TOWARD THE SPECTROSCOPIC IDENTIFICATION OF VINYLIDENE H2C=C-
    OSAMURA, Y
    SCHAEFER, HF
    CHEMICAL PHYSICS LETTERS, 1981, 79 (03) : 412 - 415
  • [5] C3H5+ ISOMERS - EVIDENCE FOR THE EXISTENCE OF LONG-LIVED ALLYL AND 2-PROPENYL CATIONS IN THE GAS-PHASE
    BOWERS, MT
    SHUYING, L
    KEMPER, P
    STRADLING, R
    WEBB, H
    AUE, DH
    GILBERT, JR
    JENNINGS, KR
    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1980, 102 (14) : 4830 - 4832
  • [6] Long live vinylidene!: A new view of the H2C=C:: → HCCH rearrangement from ab initio molecular dynamics
    Hayes, RL
    Fattal, E
    Govind, N
    Carter, EA
    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2001, 123 (04) : 641 - 657
  • [7] Evidence for a difference in the dissociation mechanisms of acetylene (HCCH) and vinylidene (H2C=C:) from charge inversion mass spectrometry
    Hayakawa, S
    Tomozawa, K
    Takeuchi, T
    Arakawa, K
    Morishita, N
    PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2003, 5 (11) : 2386 - 2390
  • [8] A LONG-LIVED C2H3CLBR-STAR RADICAL FROM THE REACTION OF ATOMIC CHLORINE WITH VINYL BROMIDE
    IYER, RS
    ROWLAND, FS
    CHEMICAL PHYSICS LETTERS, 1983, 103 (03) : 213 - 218
  • [9] THE GENERATION AND IDENTIFICATION OF TRIPLET VINYLIDENE, [H2C=C) - BY NEUTRALIZATION-REIONIZATION MASS-SPECTROMETRY
    SULZLE, D
    SCHWARZ, H
    CHEMICAL PHYSICS LETTERS, 1989, 156 (04) : 397 - 400
  • [10] Long-lived photoproduced radical ions in tetrathiafulvalenes covalently tethered to C60
    Simonsen, KB
    Konovalov, VV
    Konovalova, TA
    Kawai, T
    Cava, MP
    Kispert, LD
    Metzger, RM
    Becher, J
    JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2, 1999, (03): : 657 - 665
12345