Addition of 1,4,8,11-tetrazacyclotetradecane (cyclam) to a reaction that produces octametallic rings when simpler amines are used, produces {CrM} "pretzels" (M = Zn or Cu) where the cyclam coordinates to the M ion which then sits at the centre of a twelve-metal macrocycle. Magnetic studies were fitted using the finite-temperature Lanczos method (FTLM), and the results demonstrate that exchange interactions are transferable from previous exchange-coupled Cr rings.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9764323 | PMC |
| http://dx.doi.org/10.1039/d2dt03368b | DOI Listing |
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