Trinuclear terpyridine frustrated spin system with a MnO core: synthesis, physical characterization, and quantum chemical modeling of its magnetic properties
Inorganic Chemistry, ISSN: 0020-1669, Vol: 48, Issue: 21, Page: 10281-10288
2009
- 53Citations
- 46Captures
Metric Options: CountsSelecting the 1-year or 3-year option will change the metrics count to percentiles, illustrating how an article or review compares to other articles or reviews within the selected time period in the same journal. Selecting the 1-year option compares the metrics against other articles/reviews that were also published in the same calendar year. Selecting the 3-year option compares the metrics against other articles/reviews that were also published in the same calendar year plus the two years prior.
Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Metrics Details
- Citations53
- Citation Indexes53
- 53
- CrossRef51
- Captures46
- Readers46
- 46
Article Description
The trinuclear oxo bridged manganese cluster, [MnO(terpy)(terpyO)(H O)](SO) (5) (terpy = 2,2′:2″6′ terpyridine and terpyO = 2,2′:2″,6′-terpyridine 1,1″-dioxide), was isolated in an acidic aqueous medium from the reaction of MnSO, terpy, and oxone as chemical oxidant. The terpyO ligands were generated in situ during the synthesis by partial oxidation of terpy. The complex crystallizes in the monoclinic space group P21/n with a = 14.251(5) A, b = 15.245(5) Å, c = 24.672(5) Å, α = 90.000(5)°, β = 92.045(5)°, γ = 90.000(5)°, and Z = 4. The triangular {MnO } core observed in this complex is built up of a basal Mn(μ-O)Mn unit where each Mn ion is linked to an apical Mn ion via mono(μ,-O) bridges. The facial coordination of the two tridentate terpyO ligands to the Mn(μ-O)Mn unit allows the formation of the triangular core. 5 is also the first structurally characterized Mn complex with polypyridinyl N-oxide ligands. The variable-temperature magnetic susceptibility data for this complex, in the range of 10-300 K, are consistent with an S = 1/2 ground state and were fit using the spin Hamiltonian H = - 2J(S̃S̃+S̃S̃ ) - 2JS̃S̃ with S = S = S = 3/2, J = -37 (±0.5) and J = -53 (±1) cm where J and J are exchange constants through the mono-μ-oxo and the di-μ-oxo bridges, respectively. The doublet ground spin state of 5 is confirmed by EPR spectroscopic measurements. Density functional theory (DFT) calculations based on the broken symmetry approach reproduce the magnetic properties of 5 very well (calculated values: J = -39.4 and J = -55.9 cm), thus confirming the capability of this quantum chemical method for predicting the magnetic behavior of clusters involving more than two metal ions. The nature of the ground spin state of the magnetic {MnO} core and the role of ancillary ligands on the magnitude of J are also discussed. © 2009 American Chemical Society.
Bibliographic Details
Provide Feedback
Have ideas for a new metric? Would you like to see something else here?Let us know