20 = 14*1.d0 ; C1-C2-C2 = C1-C2-C2
16 = 15*1.d0 ; C2-C1-H1 = C2-C1-H1
17 = 15*1.d0 ; C2-C1-H1 = C2-C1-H1
[...]
37 = 30*1.d0 ; H1-C1-H1 = H1-C1-H1
34 = 33*1.d0 ; H2-C2-H2 = H2-C2-H2
44 = 43*1.d0 ; H1-C1-C2-C2_n=3 = H1-C1-C2-C2_n=3
45 = 43*1.d0 ; H1-C1-C2-C2_n=3 = H1-C1-C2-C2_n=3
46 = 43*1.d0 ; H1-C1-C2-C2_n=3 = H1-C1-C2-C2_n=3
47 = 43*1.d0 ; H1-C1-C2-C2_n=3 = H1-C1-C2-C2_n=3
48 = 43*1.d0 ; H1-C1-C2-C2_n=3 = H1-C1-C2-C2_n=3
Note that this file can be straightforwardly copied and pasted into a JOYCEmain input file, to refine a previous fitting performed with incomplete dependencies.
In the above framed sample file, for instance, in the first line IC number 3 is set as dependent on number 1.
The reason for doing this is suggested by JOYCE and automatically written: the distances C2-C1 (IC number 3) and C1-C2 (IC number 1) should be described by the same FF parameters for their symmetry.
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