Coordination Chemistry of 2,2‘-Dipyridyl Diselenide:  X-ray Crystal Structures of PySeSePy, [Zn(PySeSePy)Cl2], [(PySeSePy)Hg(C6F5)2], [Mo(SePy)2(CO)3], [W(SePy)2(CO)3], and [Fe(SePy)2(CO)2] (PySeSePy = C5H4NSeSeC5H4N; SePy = [C5H4N(2-Se)-N,Se])

Kienitz, C. O.; Thöne, Carsten; Jones, Peter G.

doi:10.1021/ic951454d

Cited by 116 publications

(24 citation statements)

References 51 publications

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“…Yield 1.5 g (60%). 1 H NMR: δ, 2.31 (s, 3H, CH 3 ), 7.29 (d, 8 Hz, 2H, meta to N), 7.43 (q, 2 Hz and 8 Hz, 2H, para to N), 8.53 (d, 2 Hz, 2H, ortho to N). 13 General method for the preparation of unsymmetrical alkylpyridylselenide/ dipyridylselenide in THF (20 ml) was treated with i-PrMgCl (20 mmol) at room temperature.…”

Section: -Bromo-5-selenopyridylmethane (1)mentioning

confidence: 99%

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A novel and facile one-pot synthesis of pyridylselenium compounds through selective bromine–magnesium exchange with isopropylmagnesium halide

Bhasin

Arora

Sharma

et al. 2005

Appl. Organometal. Chem.

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One-pot synthesis of various unsymmetrical 2-bromo-5-pyridylselenium compounds has been carried out under non-cryogenic conditions by selective single bromine-magnesium exchange of 2,5-dibromopyridine using isopropylmagnesium chloride. This exchange gives 2-bromo-5-pyridylmagnesium chloride, which upon the insertion of elemental selenium followed by the treatment with alkyl halide gives the title compounds in good yield. This exchange has also been extended towards bromine-magnesium exchange of 2-bromopyridine for the improved synthesis of 2-pyridylselenium compounds. The molecular structure of 2-bromo-5-selenopyridyltribromomethane has been examined by single crystal X-ray diffraction. This compound crystallizes in the monoclinic space group P2 1 /n. From the molecular structure it was found that intermolecular Br· · ·Br, N· · ·Se and Se· · ·Br interactions control its crystal packing.

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Section: -Bromo-5-selenopyridylmethane (1)mentioning

confidence: 99%

“…Hz and 8 Hz, 2H, para to N),8.47 (d,2 Hz, 2H, ortho to N) 13. C NMR: δ, 153.86, 143.47, 122.19, 128.70, 125.97, 21.92.…”

mentioning

confidence: 99%

A novel and facile one-pot synthesis of pyridylselenium compounds through selective bromine–magnesium exchange with isopropylmagnesium halide

Bhasin

Arora

Sharma

et al. 2005

Appl. Organometal. Chem.

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“…Organotellurium ligands containing hard and soft donors like nitrogen, oxygen and tellurium results into an interesting coordination chemistry due to the competitive coordination RESEARCH ARTICLE behaviour between the hard and soft donors towards the metal 26,27 . Organotellurium compounds have been utilized as organic superconductors 28 , semiconductors 29 and photo imaging agents.…”

Section: Introductionmentioning

confidence: 99%

Investigations on Some Biologically Active Divalent Transition Metal Complexes with Ditellurium Tetraazamacrocycles

2018

Chem Sci Trans

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Some 10-membered ditellurium tetraazamacrocyclic complexes of Ni(II), Pd(II) and Pt(II) were synthesized by template condensation of diaryltellurium(IV) dichlorides, (aryl = pmethoxyphenyl, 3-methyl-4-hydroxyphenyl and p-hydroxyphenyl) with 1,2-diaminopropane and divalent metal chlorides in dry methanol. Characterization of these newly synthesized complexes was carried out by elemental analyses, magnetic susceptibility measurement and Infrared, proton nuclear magnetic resonance and electronic absorption spectroscopy. On the basis of these studies, a square planar geometry has been assigned for Pd(II) and Pt(II) complexes and a distorted octahedral geometry for the Ni(II) complexes. The antibacterial and antifungal activities of these complexes, have also been screened in vitro against some pathogenic fungal and bacterial strains to assess their growth inhibiting potential. The MIC shown by these complexes were compared with the MIC shown by standard antifungal (fluconazole) and antibacterial (cefadroxil) drugs.

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“…In addition, organoselenium compounds are known to be suitable antioxidants because of their unique ability to imitate the enzymatic activities of glutathione peroxidase (Gpx) that catalyze the decomposition of hydroperoxides in various biochemical reactions [3,4]. Organoselenium compounds containing selenium in bivalent oxidation state play prominent role in coordination chemistry [5,6]. An extensive use of organoselenium compounds in semiconductors and MOCVD techniques consign these compounds a noticeable position in electronic chemistry [7,8].…”

Section: Introductionmentioning

confidence: 99%

A one-flask synthesis and characterization of novel symmetrical pyridyl monoselenides and X-ray crystal structure of bis(5-bromo-2-pyridyl) selenide and bis(2-bromo-5-pyridyl) selenide

Bhasin¹,

Rishu²,

Singh³

et al. 2010

Journal of Organometallic Chemistry

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Coordination Chemistry of 2,2‘-Dipyridyl Diselenide: X-ray Crystal Structures of PySeSePy, [Zn(PySeSePy)Cl₂], [(PySeSePy)Hg(C₆F₅)₂], [Mo(SePy)₂(CO)₃], [W(SePy)₂(CO)₃], and [Fe(SePy)₂(CO)₂] (PySeSePy = C₅H₄NSeSeC₅H₄N; SePy = [C₅H₄N(2-Se)-N,Se])

Cited by 116 publications

References 51 publications

A novel and facile one-pot synthesis of pyridylselenium compounds through selective bromine–magnesium exchange with isopropylmagnesium halide

A novel and facile one-pot synthesis of pyridylselenium compounds through selective bromine–magnesium exchange with isopropylmagnesium halide

Investigations on Some Biologically Active Divalent Transition Metal Complexes with Ditellurium Tetraazamacrocycles

A one-flask synthesis and characterization of novel symmetrical pyridyl monoselenides and X-ray crystal structure of bis(5-bromo-2-pyridyl) selenide and bis(2-bromo-5-pyridyl) selenide

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