A new bis(oxalato)ferrate(III) hybrid salt associated with guanidinium cations : Synthesis, crystal structure, magnetic properties and Hirshfeld surface analysis

Nde, Colince; Nana, Augustin N.; Kamga, Idelle N.; Azam, Mohammad; Capet, Frédéric; Foulon, M.; Nenwa, Justin

doi:10.1016/j.molstruc.2022.133145

Cited by 8 publications

(2 citation statements)

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“…This comes as no surprise since multiple strong and weak NOE’s were observed for 1a as seen from selective 1 H NMR spectroscopy. Although the C···H/H···C interactions constitute 19.7% of the crystal packing and were found to be the second most dominant interaction, these contacts are fairly weak as evident by the wing-shape plot (Figure e) . Other intermolecular interactions present in the crystal packing are Cl···H/H···Cl (2.8%) and N···H/H···N (1.3%), which also contributes to the total Hirshfeld surface.…”

Section: Resultsmentioning

confidence: 96%

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Structural Investigation of the Anion Effect in Ruthenium(II) Arene Complexes Bearing Pyridyl-Triazole Ligands: Implications for Transfer Hydrogenation Catalysis

et al. 2022

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Cationic ruthenium(II) half-sandwich complexes bearing 1octyl-4-pyridyl-1H-1,2,3-triazole ligands were found to display strong ionpairing, the strength of which was dependent on the nature of the anionic counterion. A detailed spectroscopic analysis revealed that the ion-pairing process is also solvent-dependent. For the complex containing the 1-octyl-4pyridyl-1H-1,2,3-triazole ligand and a tetraphenylborate counterion (1a), the spectral data reveal that the complex forms a collection of four ions (quadruple ions) in CHCl 3 . In contrast, one set of contact ion-pairs (CIPs) was observed in MeCN with the extent of ion-pairing being 88%. Analogous complexes in which the tetraphenylborate counterion is replaced by a hexafluorophosphate (2a) and tetrafluoroborate (3a) anion exist as CIPs (92 and 90%) and solvent-separated ion-pairs (55 and 56%) in CHCl 3 and MeCN, respectively. Conductivity measurement results indicate that the extent of ion-pairing for 1a, 2a, and 3a in 2-PrOH is greater in comparison to the CIPs formed in CH 2 Cl 2 . Our results provide a rationale for the reactivity differences observed for 1a and 2a in transfer hydrogenation catalysis.

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Section: Resultsmentioning

confidence: 96%

“…Although the C•••H/H•••C interactions constitute 19.7% of the crystal packing and were found to be the second most dominant interaction, these contacts are fairly weak as evident by the wing-shape plot (Figure 6e). 13 Other intermolecular interactions present in the crystal packing are Cl…”

Section: Hirshfeld Surface Analysis Of 1amentioning

confidence: 99%