Erratum: Rotationally resolved photodissociation spectroscopy of Mg+–Ar [J. Chem. Phys. <b>103</b>, 3293 (1995)]

Scurlock, C. T.; Pilgrim, Jeffrey S.; Duncan, M. A.

doi:10.1063/1.472568

Cited by 28 publications

(34 citation statements)

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“…4͒ only slightly greater than that of MgAr ϩ (2.83Ϯ0.01 Å). 10 In these two papers 1 we examine the effect of increasing the size and polarizability of the RG atom from Ar to Kr to Xe. As shown in the preceding paper, 1 the bond-energy of the Mg(3d␦ 3 ⌬)•Kr state (D o ϭ1869Ϯ80 cm Ϫ1 ) is also substantially greater than that of the Mg(3d 3 ⌸ 0 )•Kr state (D o ϭ587Ϯ80 cm Ϫ1 ), and approaches even more closely the bond-strength of the MgKr ϩ ion (D o ϭ1891Ϯ80 cm Ϫ1 ).…”

Section: Introductionmentioning

confidence: 99%

Spectroscopic characterization of the excited valence MgXe(3dδ 3Δ1), MgXe(3dπ 3Π), and MgXe(“3dσ” 3Σ+) van der Waals states

Kaup

Breckenridge

1997

The Journal of Chemical Physics

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The Mg(3s3d 3 D J )•Xe( 3 ⌺ ϩ ), Mg(3s3d 3 D J )•Xe( 3 ⌸ 0 ϩ ,0 Ϫ) , and Mg(3s3d␦ 3 D J )•Xe( 3 ⌬ 1 ) excited states have been characterized via resonance enhanced two-photon ionization ͑R2PI͒ spectroscopy of transitions from the long-lived Mg(3s3 p 3 P J )•Xe( 3 ⌸ 0 ϩ ,0 Ϫ) , metastable states of the MgXe van der Waals molecule. Because the excited Mg(3d) orbital is quite diffuse and the Xe atom can approach along the nodal axis of the aligned 3d orbital, minimizing repulsion, the MgXe(3s3d␦ 3 ⌬ 1 ) state (D o ϭ3160Ϯ150 cm Ϫ1 ) is even more strongly bound than the MgXe ϩ core ion ͑for which D o ϭ2848Ϯ150 cm Ϫ1 ͒. The MgXe(3d 3 ⌺ ϩ ) state (D o ϭ1262Ϯ150 cm Ϫ1 ) and the MgXe(3d 3 ⌸ 0 Ϫ) state (D o ϭ1229Ϯ150 cm Ϫ1 ) are much less bound. However, the potential curves of these two states are quite different, and it is suggested that the MgXe(''3d'' 3 ⌺ ϩ ) state is bound only because of substantial mixing of Mg(4 p) Rydberg character into the wave function. Interesting spin-orbit and spin-spin effects, detected and analyzed from the rotational structure of the vibrational bands, are attributed to mixing of some Xe character into molecular orbitals nominally of Mg* excited state character. © 1997 American Institute of Physics. ͓S0021-9606͑97͒00440-6͔

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Section: Introductionmentioning

confidence: 99%

Spectroscopic characterization of the excited valence MgXe(3dδ 3Δ1), MgXe(3dπ 3Π), and MgXe(“3dσ” 3Σ+) van der Waals states

Kaup

Breckenridge

1997

The Journal of Chemical Physics

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“…Our research group has an ongoing program in the investigation of metal ion interactions in weakly bound complexes through mass-selected photodissociation spectroscopy. [17][18][19][20][21][22][23][24][25][26]30 In the present work, we describe the first such photodissociation spectroscopy of Ca ϩ -N 2 .…”

Section: Introductionmentioning

confidence: 99%

“…Mass spectrometric techniques have produced abundant thermochemical data for metal ion-molecular complexes. [1][2][3] More recently, ab initio calculations [4][5][6][7][8][9] and optical spectroscopy studies [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27]30 have become the focus for studying metal ion-ligand interactions. Our research group has an ongoing program in the investigation of metal ion interactions in weakly bound complexes through mass-selected photodissociation spectroscopy.…”

Section: Introductionmentioning

confidence: 99%

Photodissociation spectroscopy of the Ca+–N2 complex

Pullins¹,

Reddic²,

Duncan³

1998

The Journal of Chemical Physics

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Articles you may be interested inDissociation of internal energy-selected methyl bromide ion revealed from threshold photoelectron-photoion coincidence velocity imagingThe weakly bound complex Ca ϩ -N 2 is prepared in a pulsed nozzle/laser vaporization cluster source and studied with mass-selected photodissociation spectroscopy. The chromophore giving rise to the electronic transition is the 2 P← 2 S atomic transition of Ca ϩ . The appearance of spin-orbit doublets in the vibrationally resolved spectrum, as expected for a 2 ͟ r ← 2 ͚ ϩ transition, confirms that the complex is linear. The electronic transition in the complex lies to the red of the atomic resonance line indicating that the complex is more strongly bound in the excited state than in the ground state. The vibrationally resolved spectrum contains progressions in the Ca ϩ -N 2 stretching mode and in a combination of this stretch with the N-N stretch. Extrapolation of the Ca ϩ -N 2 stretch determines the excited state dissociation energy to be D 0 Јϭ6500Ϯ500 cm Ϫ1 , and an energetic cycle determines the ground state value to be D 0 Љϭ1755Ϯ500 cm Ϫ1 ͑5.02 kcal/mol͒. The 2 ͟ r (2,0,0)← 2 ͚ ϩ (0,0,0) vibronic transition has been rotationally resolved yielding the bond lengths: r CaN ϭ2.75 Å and r NN ϭ1.15 Å for the 2 ͚ ϩ ground state; r CaN ϭ2.48 Å and r NN ϭ1.17 Å for the 2 ͟ excited state.

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“…We have used the new valve with a rotating-rod metal cluster source to produce pure metal clusters, 3 metal compound clusters ͑e.g., ''met-cars'' and metal-carbon nanocrystals͒, 4 metalatom-rare-gas van der Waals complexes ͑Ag-RG and Ag 2 -RG; RGϭAr, Kr, Xe͒, 5,6 and metal cation complexes with rare gases and small molecules ͑Mg ϩ -RG, Ca ϩ -H 2 O, etc.͒. 7,8 The modification does not limit cluster production or supersonic cooling. For example, metal dimers 3 and metal ion complexes 7,8 are produced routinely with rotational temperatures less than 5 K.…”

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confidence: 97%

“…7,8 The modification does not limit cluster production or supersonic cooling. For example, metal dimers 3 and metal ion complexes 7,8 are produced routinely with rotational temperatures less than 5 K.…”

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confidence: 98%