Treatment of p-tert-butylcalix[6]areneH(6) (H6L) with [Mo(OBu')(2){[2.2'-(N
)-C6H4](2)(CH2CH2)}] in refluxing toluene affords, after work-up. the compl
ex [Mo(2-NC6H4CH2CH2C6H4NHC(Me)NH-2)LH2]. 4MeCN (1), which contains an 11-m
embered metallocyclic ring as characterised by Synchrotron X-radiation. (C)
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