when n is 0 and M is iridium or rhodium, Q represents 1,5 cyclo octadiene or norbornadiene, and {HEAD ~ Y} represents {TAIL ~ ClO4}, PF6 or BF4 ; and 
represents
when n is 0 and M is iridium or rhodium , Q represents 1,5 cyclo octadiene or norbornadiene , and { HEAD ~ Y } represents { TAIL ~ ClO4 } , PF6 or BF4 ; and
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH