Table 2. Characteristic Fusion Parameters of RNL Polymorphs.

	Tfus/°C	ΔfusH/kJ mol–1
form Ia	118.5 ± 0.4	54 ± 2
form IIb	113.2 ± 0.5	27 ± 4

^an = 5.

^bn = 3 (n = sample size).