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In situ studies of reversible solid-gas reactions of ethylene responsive silver pyrazolates.

ABSTRACT: Solid-gas reactions and in situ powder X-ray diffraction investigations of trinuclear silver complexes {[3,4,5-(CF3)3Pz]Ag}3 and {[4-Br-3,5-(CF3)2Pz]Ag}3 supported by highly fluorinated pyrazolates reveal that they undergo intricate ethylene-triggered structural transformations in the solid-state producing dinuclear silver-ethylene adducts. Despite the complexity, the chemistry is reversible producing precursor trimers with the loss of ethylene. Less reactive {[3,5-(CF3)2Pz]Ag}3 under ethylene pressure and low-temperature conditions stops at an unusual silver-ethylene complex in the trinuclear state, which could serve as a model for intermediates likely present in more common trimer-dimer reorganizations described above. Complete structural data of three novel silver-ethylene complexes are presented together with a thorough computational analysis of the mechanism.

SUBMITTER: Dias HVR 

PROVIDER: S-EPMC10848740 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature

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<i>In situ</i> studies of reversible solid-gas reactions of ethylene responsive silver pyrazolates.

Dias H V Rasika HVR   Parasar Devaborniny D   Yakovenko Andrey A AA   Stephens Peter W PW   Muñoz-Castro Álvaro Á   Vanga Mukundam M   Mykhailiuk Pavel P   Slobodyanyuk Evgeniy E  

Chemical science 20231129 6

Solid-gas reactions and <i>in situ</i> powder X-ray diffraction investigations of trinuclear silver complexes {[3,4,5-(CF<sub>3</sub>)<sub>3</sub>Pz]Ag}<sub>3</sub> and {[4-Br-3,5-(CF<sub>3</sub>)<sub>2</sub>Pz]Ag}<sub>3</sub> supported by highly fluorinated pyrazolates reveal that they undergo intricate ethylene-triggered structural transformations in the solid-state producing dinuclear silver-ethylene adducts. Despite the complexity, the chemistry is reversible producing precursor trimers with  ...[more]

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