Threshold Behavior of Synchrotron Radiation Photoionization for Bin(n≤4)

Kajita, Akihiro; Saito, Yahachi; Yasue, Tsuneo; Hayashi, Minami; Ichimiya, Ayahiko; Gotoh, Tetsuji; Kawaguchi, Yôichi; Kotani, Masahiro; Shigeta, Yasuteru; Shoji, T.; Tazawa, Y.; Ohtani, S.

doi:10.1143/jpsj.58.2320

Cited by 5 publications

(4 citation statements)

References 10 publications

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“…Investigations of finite systems contianing Bi can yield valuable information about its bonding properties. The electronic structures of both neutral and anionic Bi clusters have been investigated by photoelectron spectroscopy (PES). − PES has also been applied to anions of gaseous Bi complexes − and bimetallic Bi clusters. − There have been theoretical investigations about the electronic and structural properties of neutral and anionic Bi clusters, − as well as binary Bi clusters. − The structures of cationic bismuth clusters have been probed experimentally by ion mobility and trapped ion electron diffraction . In the current article, we report a PES study of two Bi-containing molecular species, a diatomic BiAu – and a BiBO – complex, to examine the bonding properties of Bi with Au and boronyl.…”

Section: Introductionmentioning

confidence: 99%

Photoelectron Spectroscopy of BiAu^– and BiBO^–: Further Evidence of the Analogy between Au and Boronyl

2015

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Boronyl (BO) is a monovalent σ radical with a B≡O triple bond. Its chemistry has remained relatively unknown, though analogy has been established for BO with monovalent atoms, such as H or Au. Here we report a photoelectron spectroscopic study of BiAu(-) and BiBO(-), showing further evidence of the analogy between Au and BO. The photoelectron spectra of BiAu(-) and BiBO(-) are found to be similar, suggesting that they possess similar electronic structure and chemical bonding. The electron affinities of BiAu and BiBO are measured to be 1.38(4) and 1.84(3) eV, respectively. The ground states of both BiAu and BiBO are shown to be a triplet (X (3)Σ(-)). In addition, vibrational structures are resolved in the spectra of BiBO(-). Two vibrational frequencies at 320(30) and 1860(50) cm(-1) are measured for the ground state of BiBO, corresponding to the Bi-B and B-O stretching modes, respectively. The low-lying electronic excited states of BiAu and BiBO are also found to be similar: their first four excited states are A (1)Δ, B (1)Σ(+), C (3)Π, and D (1)Π, with excitation energies at 0.71, 1.29, 2.54, and 2.67 eV for BiAu and 0.63, 1.26, 3.68, and 3.82 eV for BiBO, respectively, above the (3)Σ(-) ground state. Weak photoelectron features related to two-electron detachment transitions are also observed for both anions because of strong electron correlation effects in the ground state of the anions.

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Section: Introductionmentioning

confidence: 99%

Photoelectron Spectroscopy of BiAu^– and BiBO^–: Further Evidence of the Analogy between Au and Boronyl

2015

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“…The simulated spectra of the slightly higher energy isomer II are not in good agreement with the experimental spectra. We conclude that isomer I with C s symmetry is likely the global minimum for AuBi 8 − , which can be viewed as adding an additional Bi dimer to the "bow-tie-like" isomer of AuBi 6…”

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confidence: 90%

“…Bismuth nanoparticles have been shown to exhibit size-dependent superconductivity . The electronic structures and bonding characters of Bi clusters (neutral, anionic, and cationic) have been investigated by photoelectron spectroscopy (PES) − and theoretical calculations. − There have been few combined experimental and theoretical studies on bismuth clusters. Gausa et al performed both PES measurement and theoretical calculations for anionic bismuth clusters and reported a rooflike and a planar ring structure for bismuth tetramer and pentamer, respectively .…”

Section: Introductionmentioning

confidence: 99%

Structural Evolution of Gold-Doped Bismuth Clusters AuBi_n^– (n = 4–8)

et al. 2018

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The structures of gold-doped bismuth clusters, AuBi n − (n = 4−8), are investigated through a joint photoelectron spectroscopy and density functional theory (DFT) study. Well-resolved photoelectron spectra are obtained at several photon energies. Global minimum searches coupled with DFT calculations yield low-lying structures, whose relative energies are further evaluated by single-point energy calculations at the CCSD(T) level of theory. Vertical detachment energies are calculated with the inclusion of spin−orbit effects to compare with the experimental data. Three-dimensional structures are found to be dominant in this size range, while a planar low-lying isomer is observed only for AuBi 4 −. The AuBi 6 − cluster possesses a 1 digitalcommons.unl.edu

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“…Atomic and diatomic species as well as weakly contributing higher clusters of bismuth can also be separated by photoion mass spectrometry. Using synchrotron radiation at UVSOR, a Nagoya group has carried out photoionization efficiency measurements for these species, however, with only ≈ 60 meV resolution [8,9]. Very recently, higher resolution studies of the photoionization spectra were performed by Yoo et al For the Bi + 3 P 0 -3 P 2 energy region they have recorded the atomic photoionization spectrum with a resolution of 0.09 nm [10] and also obtained an estimate of the oscillator strengths, while retaining most of the previous photoabsorption assignments.…”

Section: Introductionmentioning

confidence: 99%

Spin-resolved photoelectron spectroscopy in the autoionization region of atomic bismuth

Böwering

Martins

Snell

et al. 1998

J. Phys. B: At. Mol. Opt. Phys.

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The photoionization of atomic bismuth in the complex autoionization region above the first ionization threshold Bi + (6s 2 6p 2 ) 3 P 0 is studied using spin-resolved photoelectron spectroscopy and Hartree-Fock calculations with relativistic extensions. In spin-and angleresolved measurements with circularly polarized synchrotron radiation the relative photoelectron intensity and the polarization parameters A and ξ are determined for the strongest resonances. In calculations taking more than 30 different configurations into account all five dynamical photoionization parameters are determined. The agreement with the experimental data is fairly good. Combining calculated and experimental results for the intensity spectrum and the polarization parameter A as well as earlier absorption data, assignments of the first autoionization resonances above the threshold are obtained leading partially to a revision of previous results.

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Threshold Behavior of Synchrotron Radiation Photoionization for Bi_n(n≤4)

Cited by 5 publications

References 10 publications

Photoelectron Spectroscopy of BiAu^– and BiBO^–: Further Evidence of the Analogy between Au and Boronyl

Photoelectron Spectroscopy of BiAu^– and BiBO^–: Further Evidence of the Analogy between Au and Boronyl

Structural Evolution of Gold-Doped Bismuth Clusters AuBi_n^– (n = 4–8)

Spin-resolved photoelectron spectroscopy in the autoionization region of atomic bismuth

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Threshold Behavior of Synchrotron Radiation Photoionization for Bin(n≤4)

Cited by 5 publications

References 10 publications

Photoelectron Spectroscopy of BiAu– and BiBO–: Further Evidence of the Analogy between Au and Boronyl

Photoelectron Spectroscopy of BiAu– and BiBO–: Further Evidence of the Analogy between Au and Boronyl

Structural Evolution of Gold-Doped Bismuth Clusters AuBin– (n = 4–8)

Spin-resolved photoelectron spectroscopy in the autoionization region of atomic bismuth

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Threshold Behavior of Synchrotron Radiation Photoionization for Bi_n(n≤4)

Photoelectron Spectroscopy of BiAu^– and BiBO^–: Further Evidence of the Analogy between Au and Boronyl

Photoelectron Spectroscopy of BiAu^– and BiBO^–: Further Evidence of the Analogy between Au and Boronyl

Structural Evolution of Gold-Doped Bismuth Clusters AuBi_n^– (n = 4–8)