Rosocyanine and Rubrocurcumin Complexes with REEs
Rosocyanine is commonly used as a highly sensitive test for boron in solution and are formed when curcumin is added to a boron containing analyte. If
you look at the structure of rosocyanine, you will notice how it has both a linear, highly conjugated structure and Td symmetry at the coordination
site with boron. Due to its conjugated structure, I was wondering if addition of REEs could lower the band gap of this material and make it a good
organometallic semiconducting material. Would it just be sufficient to complex curcumin to REE's without forming rosocyanine? I would think that the
coordination of boron would allow for electrons to more easily jump between the curcumin molecules since they are being forced into very close
proximity. I imagine the conduction mechanism would consist of the REE's first entering an excited energy state along with the rosocyanine which would
accept the high energy electrons of the REE and allowing for electrons to flow freely between the curcumin backbones and REE centers. Anyway...
I was wondering first off, if this is a valid idea? Secondly, if it would be better to complex REEs strictly to curcumin, or to rosocyanine, and
thirdly how can I dissolve rosocyanine and REE chlorides in high concentration so I can produce crystals of the desired compound? Complexation of REE
to rosocyanine and/or curcumin would most desirably be performed as a one pot synthesis. apparently, Rosocyanine has very low solubility in most
solventsm which is unfortunate. Also, I imagine the positively charged oxygens will need to be reduced in order to perform a complexing reaction to
REE chlorides. Could I just add the rosocyanine to a solution of a nucleophile to reduce these? The nucleophile would need to have a structure good at
chelating rare earths since this is what would be attaching to the metal after it is added to the rosocyanine.
Thanks for all the help!
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