Table 1. Deviation of atoms from the benzene ring least-squares planes ().

Atom	Deviation	Atom	Deviation
C2	0.015(2)	C12	0.004(2)
C3	0.007(2)	C13	0.003(2)
C4	0.008(2)	C14	0.003(2)
C5	0.015(2)	C15	0.007(2)
C6	0.007(2)	C16	0.006(2)
C7	0.007(2)	C17	0.000(4)
Ge1*	0.210(4)	Ge2*	0.101(4)

Note: (*) not used in the least-squares-plane calculation.