Gas-Phase Characterization by Photoelectron Spectroscopy of Unstabilized .alpha.-Unsaturated Arsines, Ethylidene- and Ethylidynearsines

Metail, V.; Senio, A.; Lassalle, L.; Guillemin, Jean‐Claude; Pfister‐Guillouzo, G.

doi:10.1021/om00010a040

Cited by 28 publications

(16 citation statements)

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“…The photoelectron spectra of the derivatives of the column 15 elements of the periodic table showed that the destabilizing interaction of four electrons (p CRC -lone pair) decreased on going from the nitrogen to the arsenic derivative. 6 The very weak destabilization observed for ethynylgermane and ethynylstannane is also consistent with the evolution of atomic and molecular properties on going from silicon to tin. 7 On the other hand, all these alkynyl compounds show a strong increase of acidity in the gas phase compared to the one of the corresponding saturated systems.…”

Section: Introductionsupporting

confidence: 67%

The ground-state rotational spectrum and molecular geometry of ethynylstannane

Guillemin

Legoupy

Batten

et al. 2006

Phys. Chem. Chem. Phys.

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The ground-state rotational spectra of 24 isotopomers of ethynylstannane have been observed by pulsed-jet, Fourier-transform microwave spectroscopy. The spectroscopic constants, B(0,)D(J) and D(JK) are reported for symmetric-top isotopomers H(3)(n)Sn(12)C(12)CH, where n = 116, 117, 118, 119, 120, 122 and 124, D(3)(n)Sn(12)C(12)CH, where n = 116, 118, 120, 122 and 124, H(3)(n)Sn(13)C(12) CH and H(3)(n)Sn(12)C(13)CH , where n = 116,118 and 120, and H(3)(n)Sn(12)C(12)CD, where n = 116, 118 and 120. In addition, the values of A(0), B(0), C(0), Delta(J) and Delta(JK) were obtained for the three asymmetric-top isotopomers DH(2)(n)Sn(12)C(12)CH, where n = 116, 118 and 120. Hyperfine structure was resolved and assigned in the transitions of the isotopomers H(3)(n)SnCCD, where n = 116, 118 and 120, and in the isotopomers H(3)(117)SnCCH and H(3)(119)SnCCH. In the former group, the hyperfine structure arises from D nuclear quadrupole coupling while in the latter group its origin lies in the spin-rotation coupling of the I = 1/2 Sn nuclear spin to the rotational motion. For these isotopomers, D nuclear quadrupole and spin-rotation coupling constants are determined where appropriate. The rotational constants obtained for the 24 isotopomers of H(3)SnCCH were used to obtain the following types of molecular geometry for ethynylstannane: r(0), r(s), and r(m).

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Section: Introductionsupporting

confidence: 67%

The ground-state rotational spectrum and molecular geometry of ethynylstannane

Guillemin

Legoupy

Batten

et al. 2006

Phys. Chem. Chem. Phys.

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“…23,24 We mentioned some examples here in which it is clear that, to obtain spectra of less hindered compounds, coupling with a specific device is necessary; the success depends on the availability of the precursor. Investigations to find good conditions to generate HC As are in progress in our groups.…”

Section: Discussionmentioning

confidence: 99%

Ionization potentials of heteroalkenes: a comparative study

Chrostowska

Lemierre

Dargelos

et al. 2004

Applied Organom Chemis

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Methanimine, methylenephosphine and methylenearsine have been prepared in the gas phase and the gaseous flow has been analyzed by spectroscopy. Photoelectron spectra have been recorded and we report here a comparative study on these spectra. This comparison has been extended to the corresponding derivatives with a triple bond: hydrogen cyanide and methylidynephosphine. Estimation by theoretical calculations of the ionization potentials of the unknown methylidynearsine has been proposed.

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“…The X-ray diffraction structure showed a half-sandwich arrangement in which the tridentate N-donor macrocycle and the three chlorine atoms occupy opposite faces of an octahedral bismuth(1rr) ion. 76 Differential pulse polarography has been used to determine the formation constants of Bi3+ at an ionic strength of 0.5 and 25 "C with the compounds (66) (1, 4, 7-triazaheptane), (67) (1, 4, 7, 10, 13-pentaazatridecane), (68) [2-(aminomethy1)pyridine], (69) [bis(2-pyridyl)amine] and (70) [N,N,N',N'-tetrakis(2-hydroxypropyl)-1,2d i a m i n ~e t h a n e ] . ~~ Formation constants were obtained, and a good linear free energy relationship between log K -values for Bi3 + and log K -for analogous complexes of the isoelectronic Pb2+ ion was found.…”

Section: Bismuthmentioning

confidence: 99%