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The Supramolecular Chemistry Chemistry of Non-covalent Interactions: Host-guest Complexes - page 28 / 39

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IR Spectroscopy

N-H stretching of ruthenium complex shifts 30-70 cm-1 to lower frequency.

C-O-C stretching also observed at lower energy.  

After addition of crown ether:

Data confirms hydrogen bonding between H of Ru-NH3 and O of crown ether

400-2500 cm -1 KBr disk, 2500-4000 cm -1 in Nujol

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