6-Phenyldipyrido[1,2-
a
:2
'
,1
'
-
c
]pyrazinediium
(R
6
= C
6
H
5
)
Black, A.L.; Summers, L.A.
J. Heterocycl. Chem. 8: 29-31 (1971)
E
= –270(mV)
Pol., Br
–
salt.
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(R6 = C6H5)
(R6 = C6H5)