An experimental and theoretical investigation on hypervalent organoselenium(II) halides: Case study of [2-(Et2NCH2)C6H4]SeX (X = Cl, Br, I)

Pöllnitz, Alpár; Lippolis, Vito; Arca, Massimiliano; Silvestru, Anca

doi:10.1016/j.jorganchem.2011.05.005

Cited by 14 publications

(3 citation statements)

References 44 publications

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“…The title compound represents the first monomeric organoselenenyl chloride stabilized intramolecularly by an interaction of this type. Previously, the analogous stabilization of monomeric organoselenenyl chlorides by intramolecular secondary SeÁ Á ÁS (Tiecco et al, 2006) and SeÁ Á ÁN (Panda et al, 1999;Klapö tke et al, 2004;Kulcsar et al, 2007;Pö llnitz et al, 2011) interactions have been reported.…”

Section: Structural Commentarymentioning

confidence: 94%

The synthesis and crystal structure of 2-(chloroselanyl)pyridine 1-oxide: the first monomeric organoselenenyl chloride stabilized by an intramolecular secondary Se...O interaction

et al. 2016

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Section: Structural Commentarymentioning

confidence: 94%

The synthesis and crystal structure of 2-(chloroselanyl)pyridine 1-oxide: the first monomeric organoselenenyl chloride stabilized by an intramolecular secondary Se...O interaction

et al. 2016

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“…168 Investigations of 2-(R 2 NCH 2 )C 6 H 4 ]SeX (R = alkyl, X = Cl, Br, I) suggest that a Raman band between 250 and 150 cm À1 is characteristic of the molecules which feature a N-Se SBI. 169 Such interactions appear to induce luminescence in substitutes azobenzenes but the efficiency of the photophysical process does not correlate with the strength of the interaction. 170 Spirocyclic and tetracyclic, nitro-substituted selenium compounds displayed photoluminescence, albeit with quantum yields Z 0.02; their molecular conformations are thought to be stabilised by Se-O intramolecular SBIs.…”

Section: Organo-selenium Chemistrymentioning

confidence: 99%

Oxygen, sulfur, selenium, tellurium and polonium

Lee

Vargas‐Baca

2012

Annu. Rep. Prog. Chem., Sect. A: Inorg. Chem.

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This Chapter reviews the 2011 literature regarding the Group 16 elements, with an emphasis on new structures, synthesis, reactivity, new chalcogenide materials and their properties. HighlightsHighlights include the oxygen isotopic distribution of the Sun, dithiolene ligands, the mechanism of phase transition of Sb 2 Te 3 -GeTe, the phase changes of elemental Po, hydrogen evolution photo-catalysed by (Z-MeC 5 H 4 )Mo 3 S 4 clusters on silicon. Elemental chalcogens and chalcogenidesElements Isotopic measurements of captured solar wind revealed that, compared to Earth, the Sun is highly enriched in 16 O. 1 The F À affinity of O 2 was estimated (CCSD(T)/CBS) to be 1.6 kcal mol À1 . 2 Elemental sulfur was used as a new medium to synthesise gold nanoparticles, which enhances the mechanical properties of the dispersion. 3 A combination of grazing incidence inelastic X-ray scattering and calculations (ab initio/semiempirical) provided a structural model of the top 5 nm of amorphous selenium in which a high concentration of coordination defects at the surface explains the differences in vibrational dynamics with the bulk. 4 DFT calculations predict a transition of Po from the cubic structure to a mixture of two trigonal phases near 2 GPa. 5 Large-scale atomic calculations for the electronic factor F and specific mass shift M SMS successfully reproduced in-source resonant ionisation spectroscopic measurements for the polonium isotopes from 192 Po to 218 Po. 6 OxidesOxygen deficiency in RbO 2 enables order-disorder transitions based on the orientation of the anions; in RbO 1.72 , the changes result in short-range ferromagnetic ordering below 50 K. 7 Computational studies (B3LYP/6-311++G and MP2/6-311++G

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“…During the last years our research interest was focused on organoselenium compounds with organic groups of type 2-(R 2 NCH 2 )C 6 H 4 (R = Me, Et, Pr i ) [11][12][13][14], 2,6-(R 2 NCH 2 )C 6 H 3 [15], (RN=CH)C 6 H 4 (R = Bn, Mes, Ph) [16] or 2-(O=CH)C 6 H 4 [17] groups, as well as several metal complexes, either metal organoselenolates [18][19][20], or compounds bearing the alkoxo functionalized ligands, [R 2 C(OH)CH 2 ](2-Me 2 NCH 2 C 6 H 4 )Se [21]. As a continuation of our studies we discuss here the crystal and molecular structure of two organoselenium(II) compounds with potential for hypercoordination, namely …”

Section: Introductionmentioning

confidence: 99%