Table 5. Ratios of epitaxially comparable parameters between the multilayer (numerator) and the monolayer (denominator) in PTCDA/Ag(111), P2O/Ag(111), DCV4T-Et2/Ag(111) and trans-DBPen/Cu(111).

The respective calculated propagated uncertainties are given in brackets.

Molecule/substrate	PTCDA/Ag(111)	P2O/Ag(111)	DCV4T-Et2/Ag(111)			trans-DBPen/Cu(111)
Orientation	±(103)	±(102)	±(122)	±(211)	±(020)	±(020)
a					0.5873 (9)	0.5084 (7)
b	0.9714 (20)	0.9917 (12)
c					0.9127 (8)	0.8038 (15)
diag(v a,u b) (short/long)			0.9581 (4) (short)	0.9686 (17) (short)
diag(w a,u c) (short/long)	1.0295 (15) (short)	0.9866 (22) (long)	1.0342 (10) (long)	1.0001 (13) (long)
diag(b,c) (short/long)			1.14438 (6) (short)	1.1598 (16) (short)