Scanning tunneling microscopy, orbital-mediated tunneling spectroscopy, and ultraviolet photoelectron spectroscopy of nickel(II) octaethylporphyrin deposited from vapor

被引:126
作者
Scudiero, L
Barlow, DE
Hipps, KW [1 ]
机构
[1] Washington State Univ, Dept Chem, Pullman, WA 99164 USA
[2] Washington State Univ, Mat Sci Program, Pullman, WA 99164 USA
关键词
D O I
10.1021/jp012436m
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
Thin films of vapor-deposited Ni(II) octaethylporphyrin (NiOEP) were studied supported on gold. Thin films thermally deposited onto flame-annealed Au(111) were analyzed by ultraviolet photoelectron spectroscopy (UPS) using He I radiation and by X-ray photoelectron spectroscopy (XPS) using Mg Kalpha radiation. Reflectance absorption infrared spectroscopy (RAIRS) was used to study NiOEP films on polycrystalline gold. Scanning tunneling microscopy (STM) and orbital-mediated tunneling spectroscopy (STM-OMTS) were performed on submonolayer films of NiOEP supported on Au(111). The highest occupied pi molecular orbitals of the porphyrin ring were seen in both STM-OMTS and in UPS at about 6.4 and 6.8 eV below the vacuum level. The lowest unoccupied pi* molecular orbital of the porphyrin ring also was observed by STM-OMTS to be located near 3.4 eV below the vacuum level.
引用
收藏
页码:996 / 1003
页数:8
相关论文
共 44 条
  • [1] RESONANCE RAMAN-SPECTRA AND NORMAL-COORDINATE ANALYSIS OF REDUCED PORPHYRINS .1. ZINC(II) TETRAPHENYLPORPHYRIN ANION
    ATAMIAN, M
    DONOHOE, RJ
    LINDSEY, JS
    BOCIAN, DF
    [J]. JOURNAL OF PHYSICAL CHEMISTRY, 1989, 93 (06) : 2236 - 2243
  • [2] SCANNING TUNNELING MICROSCOPY OBSERVATIONS ON THE RECONSTRUCTED AU(111) SURFACE - ATOMIC-STRUCTURE, LONG-RANGE SUPERSTRUCTURE, ROTATIONAL DOMAINS, AND SURFACE-DEFECTS
    BARTH, JV
    BRUNE, H
    ERTL, G
    BEHM, RJ
    [J]. PHYSICAL REVIEW B, 1990, 42 (15): : 9307 - 9318
  • [3] Collman J.P., 1980, METAL IONS BIOL, V2, P1
  • [4] CRYSTAL AND MOLECULAR-STRUCTURE OF TRICLINIC FORM OF 1,2,3,4,5,6,7,8-OCTAETHYLPORPHINATONICKEL(II) - COMPARISON WITH TETRAGONAL FORM
    CULLEN, DL
    MEYER, EF
    [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1974, 96 (07) : 2095 - 2102
  • [5] Dolphin D., 1978, PORPHYRINS PHYISCA C, P142
  • [6] In situ AFM/STM characterization of porphyrin electrode films for electrochemical detection of neurotransmitters
    Duong, B
    Arechabaleta, R
    Tao, NJ
    [J]. JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1998, 447 (1-2): : 63 - 69
  • [7] Fabrication of molecular alignment at the specific sites on Cu(111) surfaces using self-assembly phenomena
    Furukawa, M
    Tanaka, H
    Sugiura, K
    Sakata, Y
    Kawai, T
    [J]. SURFACE SCIENCE, 2000, 445 (01) : L58 - L63
  • [8] Scanning tunneling microscopy of individual molecules: beyond imaging
    Gimzewski, JK
    Jung, TA
    Cuberes, MT
    Schlittler, RR
    [J]. SURFACE SCIENCE, 1997, 386 (1-3) : 101 - 114
  • [9] Scanned probe microscopies in chemistry
    Hamers, RJ
    [J]. JOURNAL OF PHYSICAL CHEMISTRY, 1996, 100 (31) : 13103 - 13120
  • [10] STM contrast, electron-transfer chemistry, and conduction in molecules
    Han, WH
    Durantini, EN
    Moore, TA
    Moore, AL
    Gust, D
    Rez, P
    Leatherman, G
    Seely, GR
    Tao, NJ
    Lindsay, SM
    [J]. JOURNAL OF PHYSICAL CHEMISTRY B, 1997, 101 (50) : 10719 - 10725