Ion properties from high-<i>L</i>Rydberg fine structure: dipole polarizability of Si<sup>2+</sup>

Komara, R. A.; Gearba, M. A.; Fehrenbach, Charles; Lundeen, S. R.

doi:10.1088/0953-4075/38/2/007

Cited by 26 publications

(28 citation statements)

References 28 publications

(46 reference statements)

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“…Our value for the ground state polarizability is in excellent agreement with both original RE-SIS value [20] value and the revised RESIS analysis [29]. Our values for the ground and 3s3p…”

Section: Evaluation Of the Uncertainty And Conclusionsupporting

confidence: 88%

“…The final results listed in row labelled "Total α 0 " are compared with other theory [29,41] and experiment [20,29]. Our value for the ground state polarizability is in excellent agreement with both original RE-SIS value [20] value and the revised RESIS analysis [29].…”

Section: Evaluation Of the Uncertainty And Conclusionsupporting

confidence: 73%

“…In the CI+All (B) calculation, theoretical energies are replaced by the experimental values for the dominant contributions. The final results listed in row Total α0 are compared with other theory [29] and experiment [20,29]. [29] 11.688 12.707 Theory [41] 11.75 Expt.…”

Section: Resultsmentioning

confidence: 99%

“…In such cases, the polarization interaction provides the dominant contribution to the energy shift. This effect is utilized in resonant excitation Stark ionization spectroscopy (RESIS) [19][20][21][22][23][24][25][26][27][28] [26], and Rnlike Th 3+ [27]. Quadrupole polarizabilities and transition matrix elements have also been determined for some of these systems.…”

Section: A Experimental Determination Of Polarizabilities From Rydbementioning

confidence: 99%

“…The most precise measurement has been carried out for the 3s 2 1 S 0 ground state of the Si 2+ ion; α 0 = 11.666(4) a.u [20]. Later analysis of the RESIS data that included additional terms in the polarization expansion yielded α 0 = 11.669(9) a.u [29].…”

Section: A Experimental Determination Of Polarizabilities From Rydbementioning

confidence: 99%

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Polarizabilities ofSi2+: A benchmark test of theory and experiment

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“…Our value for the ground state polarizability is in excellent agreement with both original RE-SIS value [20] value and the revised RESIS analysis [29]. Our values for the ground and 3s3p…”

Section: Evaluation Of the Uncertainty And Conclusionsupporting

confidence: 88%

Section: Evaluation Of the Uncertainty And Conclusionsupporting

confidence: 73%

Section: Resultsmentioning

confidence: 99%

Section: A Experimental Determination Of Polarizabilities From Rydbementioning

confidence: 99%

Section: A Experimental Determination Of Polarizabilities From Rydbementioning

confidence: 99%

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Polarizabilities ofSi2+: A benchmark test of theory and experiment

et al. 2012

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Silicon(II) Coordination Chemistry: N‐Heterocyclic Carbene Complexes of Si²⁺ and SiI⁺

et al. 2013

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Der Austausch von N‐heterocyclischen Carbenliganden (NHC) an SiII‐Zentren öffnet einen Zugang zu einem dikationischen NHC‐Komplex von Silicium(II) sowie zu [SiI(IiPr2Me2)(IDipp)]+, einem NHC‐Addukt des Iodsilyliumyliden‐Kations SiI+ (siehe Bild). Im Zuge von Charakterisierungsstudien wurde eine beispiellose anagostische CH⋅⋅⋅Si‐Wechselwirkung in [SiI(IiPr2Me2)(IDipp)]+ entdeckt.

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Silicon(II) Coordination Chemistry: N‐Heterocyclic Carbene Complexes of Si²⁺ and SiI⁺

et al. 2013

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Si 2+ ions are highly reactive, two-valence-electron species that have been generated in laser-induced plasmas and studied by photoabsorption and microwave spectroscopy. [1] The ions have also been employed as implants for waveguide fabrication in lithium niobate crystals, which are of great interest for various photonic applications owing to their physical and electro-optical properties. [2] A possible method of trapping these highly electrophilic ions in the condensed phase, may involve complexation by three strongly basic, neutral ligands (L) to give dications of the general formula [SiL 3 ] 2+ , in which the silicon center attains a noble gas configuration. However, dicationic silicon(II) complexes are presently unknown, in marked contrast to the few germanium homologues, which were reported some years ago by K. M. Baines et al. [3] This difference can be explained by the anomalous low electronegativity of silicon versus germanium, [4] which makes the isolation of silicon(II)-centered dications a highly challenging goal. Even monocationic silicon(II) compounds are very rare, and only the nido-type cluster cation [(C 5 Me 5 )Si] + , [5] [6] and the Si II cation [{C 10 H 6a,a-NP(nBu) 3 }SiCl] + stabilized by a chelating bis(iminophosphorane) ligand [7] have been isolated thus far.Since the first report of the silicon(0) compound [Si 2 -(Idipp) 2 ] (Idipp = 1,3-bis(2,6-diisopropylphenyl)-imidazol-2ylidene) by G. Robinson et al. in 2008, [8] N-heterocyclic carbenes have been shown to be particularly effective ligands for the stabilization of silicon compounds in unusually low oxidation states. Remarkable examples include NHC adducts of the dihalosilylenes SiX 2 (X = Cl, Br), [9] which are very valuable precursors in Si II chemistry, [9c, 10] or NHC adducts of the organohalosilylenes RSiCl (R = m-terphenyl, (2,6-diisopropylphenyl)(trimethylsilyl)amino), [11] which paved the way for the preparation of the first complexes featuring metalsilicon triple bonds. [12] Herein, the exchange of NHC ligands at Si II centers is illustrated for the first time to provide access to unprecedented dicationic NHC complexes of silicon(II) and NHC adducts of the iodosilyliumylidene cation SiI + .The entry into this chemistry started with the triiodosilylimidazolium salt 1 (Scheme 1), which was obtained from the reaction of SiI 4 with Idipp in toluene and isolated as a yellow, thermally robust solid in 96 % yield. Reduction of 1 with potassium graphite (2.3 equiv) in benzene afforded the yellow NHC-diiodosilylene adduct 2-I in 81 % yield (Scheme 1). [13] Under rigorous exclusion of air, the silicon(II) compound 2-I is stable in benzene or toluene solution at ambient temperature for several days, and decomposes in the solid state upon heating above 160 8C.The solid-state structure of 1·3 (CHCl 3 ) was determined by single-crystal X-ray crystallography. [13] It resembles that of [SiBr 3 (Idipp)]Br·3 (CH 2 Cl 2 ) [9b] and reveals that the chloroform trissolvate of 1 is composed of well separated [SiI 3 -(Idipp)] + cations and i...

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Ion properties from high-LRydberg fine structure: dipole polarizability of Si²⁺

Cited by 26 publications

References 28 publications

Polarizabilities ofSi2+: A benchmark test of theory and experiment

Polarizabilities ofSi2+: A benchmark test of theory and experiment

Silicon(II) Coordination Chemistry: N‐Heterocyclic Carbene Complexes of Si²⁺ and SiI⁺

Silicon(II) Coordination Chemistry: N‐Heterocyclic Carbene Complexes of Si²⁺ and SiI⁺

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Ion properties from high-LRydberg fine structure: dipole polarizability of Si2+

Cited by 26 publications

References 28 publications

Polarizabilities ofSi2+: A benchmark test of theory and experiment

Polarizabilities ofSi2+: A benchmark test of theory and experiment

Silicon(II) Coordination Chemistry: N‐Heterocyclic Carbene Complexes of Si2+ and SiI+

Silicon(II) Coordination Chemistry: N‐Heterocyclic Carbene Complexes of Si2+ and SiI+

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Product

Resources

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Ion properties from high-LRydberg fine structure: dipole polarizability of Si²⁺

Silicon(II) Coordination Chemistry: N‐Heterocyclic Carbene Complexes of Si²⁺ and SiI⁺

Silicon(II) Coordination Chemistry: N‐Heterocyclic Carbene Complexes of Si²⁺ and SiI⁺