Preparation and characterization of symmetrical bis[4-chloro-2-pyrimidyl] dichalcogenide (S, Se, Te) and unsymmetrical 4-chloro-2-(arylchalcogenyl) pyrimidine: X-ray crystal structure of 4-chloro-2-(phenylselanyl) pyrimidine and 2-(p-tolylselanyl)-4-chloropyrimidine

Bhasin, K. K.; Arora, Ekta; Mehta, S.K.; Klapoetke, Thomas M.

doi:10.1016/j.jorganchem.2010.09.010

Cited by 14 publications

(1 citation statement)

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“…163 The dichalcogenide anion E 2 2-(E = S, Se, Te) was used for the synthesis of symmetrical and unsymmetrical pyrimidyl dichalcogenides and chalcogenides. 164 A unique aryl-Te + cation, 27, was stabilised with a pincer ligand design. 165 Supramolecular organo-chalcogen chemistry SF 6 undergoes reversible inclusion inside a tetrahedral metal-organic cage.…”

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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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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NMR of Organoselenium and Organotellurium Compounds

Panda

Singh

2012

Patai's Chemistry of Functional Groups

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This chapter gives a systematic account of and surveys the available data on 77 Se and 125 Te NMR spectra of organochalcogen compounds such as chacogenols, mono and dichalcogenides, chalcogenolates, tetra and hexa substituted chalcogen compounds, chalcogenyl halides, chalcogen‐containing heterocycles and macrocycles, chalcogen‐oxygen/nitrogen compounds, etc. The review is based on the literature from 1985 to 2011 and includes 780 references. The 77 Se/ 125 Te NMR spectra of organochalcogen compounds reveal expansive chemical shifts (δ Se /δ Te ) leading to sharp sensitivity of these nuclei (Se/Te) to their environment such as solvent, temperature, molecular geometry, ligand backbone, oxidation state, chelate ring size, steric strain, etc. This is well illustrated by the advantageous use of this spectroscopy in the successful determination of the solution state structure of several organochalcogen compounds. It is noted that the 125 Te and 77 Se chemical shifts of a large number of structurally similar organotellurium and selenium compounds show linear relationship.

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