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Creators/Authors contains: "Ghiviriga, Ion"

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  1. ; ; ; ; ; (, Journal of the American Chemical Society)
    Free, publicly-accessible full text available July 16, 2026
  2. ; ; ; ; ; (, New Journal of Chemistry)
    Reported are the consequences and complexities associated with installation of hydrogen-bonding functionality at the interior of π-conjugated oligomers to promote self-assembly in solution and morphological control in thin films. 
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    Free, publicly-accessible full text available March 24, 2026
  3. ; ; ; ; ; ; (, ACS Catalysis)
    Free, publicly-accessible full text available March 21, 2026
  4. ; ; ; ; ; (, The Journal of Organic Chemistry)
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  5. ; ; ; ; ; ; (, Chemical Science)
    Cyclooctyne reacts with the trianionic pincer ligand supported alkylidyne [tBuOCO]WCC(CH3)3(THF)2(1) to yield tungstacyclopropene (3) and tungstacyclopentadiene (4) complexes. 
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  6. ; ; ; ; ; (, Polyhedron)
    An OCO-pincer supported tungsten(VI) alkylidyne exhibits diverse reactivity depending on the identity of the oxidizing agent and the stoichiometry of the reaction. Oxidation reactions are studied with azo, nitroso, and oxo compounds. Benzo(c)cinnoline facilitates migratory insertion of the alkylidyne carbon in the pincer backbone forming a tethered tungsten (VI) alkylidene complex. Analogous azobenzene activates a Csingle bondC bond in the tert—butyl group of the alkylidyne and results in a tungsten di-imido complex. Nitrosobenzene and pyridine N-oxide undergo oxygen atom transfer (OAT) reactions and result in tungsten oxo complexes. Reactions with nitrosobenzene are sensitive to stoichiometry; Csingle bondC bond activation is observed in stoichiometric reactions, while only OAT occurs with excess nitrosobenzene. 
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  7. ; ; ; ; ; ; ; (, Inorganic Chemistry)
    Reactions between tungsten alkylidyne [tBuOCO]W≡CtBu(THF)2 1 and sulfur containing small molecules are reported. Complex 1 reacts with CS2 to produce intermediate η2 bound CS2 complex [O2C(tBuC═)W(η2-(S,C)-CS2)(THF)] 8. Heating complex 8 provides a mixture of a monomeric tungsten sulfido complex 9 and a dimeric complex 10 in a 4:1 ratio, respectively. Heating the mixture does not perturb the ratio. Addition of excess THF in a solution of 9 and 10 (4:1) converts 10 to 9 (>96%) with concomitant loss of (CS)x. Both 9 and 10 can be selectively crystallized from the mixture. An alternative synthesis of exclusively monomeric 9 involves the reaction between 1 and PhNCS. Demonstrating ring expansion metathesis polymerization (REMP), tethered tungsten alkylidene 8 polymerizes norbornene to produce cis-selective syndiotactic cyclic polynorbornene (c-poly(NBE)). 
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  8. ; ; ; ; ; ; (, Journal of the American Chemical Society)
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  9. ; ; ; (, Organic Letters)
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  10. ; ; ; (, Chemical Communications)
    Reactions between imines and tungsten alkylidyne complexes are studied. 
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