Table 2.

Peak indexations of Lan-β-M and Cys-Ala derivative deduced from the x-ray patterns (Fig. 6)

Lan-β-M				Cys-Ala
q exp (Å−1)	q theo (Å−1)	d theo (Å)	(h,k)	q exp (Å−1)	q theo (Å−1)	d theo (Å)
0.39	0.39	16,26	(1,0)	0.40	0.39	16.09
0.77	0.77	8,13	(2,0)	0.78	0.78	8.05
–	–	–	(2,1)	1.02	1.02	6.15
1.16	1.16	5,42	(3,0)	1.17	1.17	5.36
1.30	1.30	4,83	(0,2)	1.31	1.32	4.76
1.36	1.36	4,63	(1,2)	1.38	1.38	4.57
1.52	1.51	4,15	(2,2)	1.54	1.53	4.10

The indexation was done with a rectangular lattice. The cell parameters, a and b, were found to be a = 16.208 ± 0.036 Å and b = 9.642 ± 0.019 Å for the Lan-β-M and a = 16.107 ± 0.0141 Å and b = 9.552 ± 0.027 Å for Cys-Ala. In the table, the experiment reciprocal spacings (q exp) are compared with those generated with the rectangular lattices (q theo), showing excellent agreement. The theoretical repetitive distances (d theo) were calculated using d theo = 2π/q theo.