+18- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11- +11-
IrH4−5 và 18 electron anion IrH5−4