Phase transitions thermodynamics of tri-methoxy-benzenes (in kJ mol⁻¹)^a.

Compounds	T fus, K	ΔlcrHom at Tfus	ΔlcrHomb	ΔglHomc	ΔgcrHomd
			298.15 K
1	2	3	5	6	7
1,2,3-Tri-methoxy-benzene	318.3 ± 0.5	20.2 ± 0.3	19.0 ± 0.5	73.0 ± 0.5	92.0 ± 0.7
1,3,5-Tri-methoxy-benzene	329.4 ± 0.5	23.9 ± 0.3	22.0 ± 0.6	68.7 ± 0.4	90.7 ± 0.7

^aUncertainty is expressed as the standard uncertainty (0.683 level of confidence, k = 1).

^bThe experimental enthalpies of fusion Δ^l_crH^o_m measured at T_fus were adjusted to 298.15 K with help of the equation:²⁷ Δ^l_crH^o_m(298.15 K)/(J mol⁻¹) = Δ^l_crH^o_m(T_fus/K) − (Δ^g_crC^o_p,m − Δ^g_lC^o_p,m) × [(T_fus/K) − 298.15 K], where Δ^g_crC^o_p,m and Δ^g_lC^o_p,m were taken from Table S2. Uncertainties in the temperature adjustment of fusion enthalpies from T_fus to the reference temperature are estimated to account with 30% to the total adjustment.²⁷

^cFrom Table 1.

^dCalculated as the sum of columns 5 and 6 in this table.